Merge branch 'release/r#138#139' into develmaster

Conflicts:
	CampusAppWP8/CampusAppWP8/App.xaml.cs
	CampusAppWP8/CampusAppWP8/Model/Lecture/LecturePageModel.cs

.gitattributes

@@ -0,0 +1,64 @@
+###############################################################################
+# Set default behavior to automatically normalize line endings.
+###############################################################################
+* text=auto
+
+###############################################################################
+# Set default behavior for command prompt diff.
+#
+# This is need for earlier builds of msysgit that does not have it on by
+# default for csharp files.
+# Note: This is only used by command line
+###############################################################################
+#*.cs     diff=csharp
+
+###############################################################################
+# Set the merge driver for project and solution files
+#
+# Merging from the command prompt will add diff markers to the files if there
+# are conflicts (Merging from VS is not affected by the settings below, in VS
+# the diff markers are never inserted). Diff markers may cause the following 
+# file extensions to fail to load in VS. An alternative would be to treat
+# these files as binary and thus will always conflict and require user
+# intervention with every merge. To do so, just uncomment the entries below
+###############################################################################
+*.csproj -text merge=union
+*.sln -text merge=union
+*.resx -text merge=union
+#*.vbproj    merge=binary
+#*.vcxproj   merge=binary
+#*.vcproj    merge=binary
+#*.dbproj    merge=binary
+#*.fsproj    merge=binary
+#*.lsproj    merge=binary
+#*.wixproj   merge=binary
+#*.modelproj merge=binary
+#*.sqlproj   merge=binary
+#*.wwaproj   merge=binary
+
+###############################################################################
+# behavior for image files
+#
+# image files are treated as binary by default.
+###############################################################################
+#*.jpg   binary
+#*.png   binary
+#*.gif   binary
+
+###############################################################################
+# diff behavior for common document formats
+# 
+# Convert binary document formats to text before diffing them. This feature
+# is only available from the command line. Turn it on by uncommenting the 
+# entries below.
+###############################################################################
+#*.doc   diff=astextplain
+#*.DOC   diff=astextplain
+#*.docx  diff=astextplain
+#*.DOCX  diff=astextplain
+#*.dot   diff=astextplain
+#*.DOT   diff=astextplain
+#*.pdf   diff=astextplain
+#*.PDF   diff=astextplain
+#*.rtf   diff=astextplain
+#*.RTF   diff=astextplain

.gitignore

@@ -0,0 +1,166 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+
+# Build results
+
+[Dd]ebug/
+[Rr]elease/
+x64/
+build/
+[Bb]in/
+[Oo]bj/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+*_i.c
+*_p.c
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.log
+*.scc
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opensdf
+*.sdf
+*.cachefile
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# NCrunch
+*.ncrunch*
+.*crunch*.local.xml
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.Publish.xml
+*.pubxml
+
+# NuGet Packages Directory
+## TODO: If you have NuGet Package Restore enabled, uncomment the next line
+#packages/
+
+# Windows Azure Build Output
+csx
+*.build.csdef
+
+# Windows Store app package directory
+AppPackages/
+
+# Others
+sql/
+*.Cache
+ClientBin/
+[Ss]tyle[Cc]op.*
+~$*
+*~
+*.dbmdl
+*.[Pp]ublish.xml
+*.pfx
+*.publishsettings
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file to a newer
+# Visual Studio version. Backup files are not needed, because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+App_Data/*.mdf
+App_Data/*.ldf
+
+
+#LightSwitch generated files
+GeneratedArtifacts/
+_Pvt_Extensions/
+ModelManifest.xml
+
+# =========================
+# Windows detritus
+# =========================
+
+# Windows image file caches
+Thumbs.db
+ehthumbs.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Mac desktop service store files
+.DS_Store
+gitattributes
+gitignore
+winphone/
+.spl
+.srum
+*.spl
+*.srum
+Doxyfile
+screenshots/
+CampusAppWP8/packages/WPtoolkit.4.2012.10.30/lib/sl3-wp/Microsoft.Phone.Controls.Toolkit.dll
+CampusAppWP8/packages/WPtoolkit.4.2012.10.30/lib/sl4-windowsphone71/Microsoft.Phone.Controls.Toolkit.dll
+CampusAppWP8/packages/WPtoolkit.4.2012.10.30/lib/wp8/Microsoft.Phone.Controls.Toolkit.dll

CampusAppWP8/CampusAppWP8/Api/Lecture/LectureApi.cs

@@ -0,0 +1,31 @@
+//-----------------------------------------------------------------------
+// <copyright file="LectureApi.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>13.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Feed.Lecture
+{
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Lecture;
+    using CampusAppWP8.Resources;
+    
+    /// <summary>
+    /// Class for the feed of the Lecture
+    /// </summary>
+    /// <remarks>
+    /// need the XmlAPI
+    /// </remarks>
+    public class LectureApi : XmlModel<LectureList>
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LectureApi" /> class.
+        /// </summary>
+        public LectureApi()
+            : base(ModelType.Feed, Constants.UrlLecture_ApiBaseAddr)
+        {
+            this.ValidRootName = Constants.LectureXmlValidRootName;
+        }
+    }
+}

CampusAppWP8/CampusAppWP8/App.xaml

@@ -8,12 +8,22 @@
 
     <!--Anwendungsressourcen-->
     <Application.Resources>
-    	<local:LocalizedStrings xmlns:local="clr-namespace:CampusAppWP8" x:Key="LocalizedStrings"/>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <ResourceDictionary Source="Styles/ListButton.xaml"/>
+                <ResourceDictionary Source="Styles/StartPageStyles.xaml"/>
+                <ResourceDictionary>
+                    <local:LocalizedStrings xmlns:local="clr-namespace:CampusAppWP8" x:Key="LocalizedStrings"/>
+                    <local:ThemelizedIcons xmlns:local="clr-namespace:CampusAppWP8" x:Key="ThemelizedIcons"/>
+                    <local:Const xmlns:local="clr-namespace:CampusAppWP8" x:Key="Const"/>
+                </ResourceDictionary>
+            </ResourceDictionary.MergedDictionaries>
+        </ResourceDictionary>
     </Application.Resources>
 
     <Application.ApplicationLifetimeObjects>
         <!--Erforderliches Objekt, das Lebensdauerereignisse der Anwendung behandelt-->
-    	<shell:PhoneApplicationService
+        <shell:PhoneApplicationService
     		Launching="Application_Launching" Closing="Application_Closing"
     		Activated="Application_Activated" Deactivated="Application_Deactivated"/>
     </Application.ApplicationLifetimeObjects>

CampusAppWP8/CampusAppWP8/App.xaml.cs

@@ -8,6 +8,8 @@ using Microsoft.Phone.Controls;
 using Microsoft.Phone.Shell;
 using CampusAppWP8.Resources;
 using System.IO.IsolatedStorage;
+using CampusAppWP8.File.Setting;
+using CampusAppWP8.Model.Setting;
 
 
 namespace CampusAppWP8
@@ -84,10 +86,44 @@ namespace CampusAppWP8
         public static T LoadFromIsolatedStorage<T>(string key)
         {
             IsolatedStorageSettings isolatedStore = IsolatedStorageSettings.ApplicationSettings;
-            
-            if(isolatedStore.Contains(key)) {
+
+            if (isolatedStore.Contains(key))
+            {
                 object value = isolatedStore[key];
-                return  (T)value;
+                return (T)value;
+            }
+            return default(T);
+        }
+
+        /// <summary>
+        /// Method save any object to the IsolatedStorage
+        /// </summary>
+        /// <param name="key"> key of the object</param>
+        /// <param name="value">value of the object, if value == null => remove key</param>
+        public static void SaveToAppState<T>(string key, T value)
+        {
+            IsolatedStorageSettings isolatedStore = IsolatedStorageSettings.ApplicationSettings;
+            isolatedStore.Remove(key);
+            if (value != null)
+            {
+                isolatedStore.Add(key, value);
+            }
+
+            isolatedStore.Save();
+        }
+
+        /// <summary>
+        /// Method load any object to the IsolatedStorage
+        /// </summary>
+        /// <param name="key"> key of the object</param>
+        public static T LoadFromAppState<T>(string key)
+        {
+            IsolatedStorageSettings isolatedStore = IsolatedStorageSettings.ApplicationSettings;
+
+            if (isolatedStore.Contains(key))
+            {
+                object value = isolatedStore[key];
+                return (T)value;
             }
             return default(T);
         }
@@ -95,13 +131,36 @@ namespace CampusAppWP8
         // Dieser Code wird beim Reaktivieren der Anwendung nicht ausgeführt
         private void Application_Launching(object sender, LaunchingEventArgs e)
         {
+            this.LoadSettings();
+        }
+
+        private void LoadSettings()
+        {
+            UserProfilFile userFile;
+            userFile = Settings.UserProfil;
+            if (userFile.Model == null)
+            {
+                userFile.onLoaded += new UserProfilFile.OnLoaded(this.UserSettingsLoaded);
+                userFile.LoadData();
+            }
+            else
+            {
+                this.UserSettingsLoaded();
+            }
+        }
+        private void UserSettingsLoaded()
+        {
+            if (Settings.UserProfil.Model == null)
+            {
+                Settings.UserProfil.Model = new UserProfilModel();
+            }
         }
 
         // Code, der ausgeführt werden soll, wenn die Anwendung aktiviert wird (in den Vordergrund gebracht wird)
         // Dieser Code wird beim ersten Starten der Anwendung nicht ausgeführt
         private void Application_Activated(object sender, ActivatedEventArgs e)
         {
-
+            this.LoadSettings();
         }
 
         // Code, der ausgeführt werden soll, wenn die Anwendung deaktiviert wird (in den Hintergrund gebracht wird)

CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj

@@ -1,325 +1,439 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProductVersion>10.0.20506</ProductVersion>
-    <SchemaVersion>2.0</SchemaVersion>
-    <ProjectGuid>{120B88CC-F3F0-4C5A-A3FD-C26E835338CC}</ProjectGuid>
-    <ProjectTypeGuids>{C089C8C0-30E0-4E22-80C0-CE093F111A43};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
-    <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>CampusAppWP8</RootNamespace>
-    <AssemblyName>CampusAppWP8</AssemblyName>
-    <TargetFrameworkIdentifier>WindowsPhone</TargetFrameworkIdentifier>
-    <TargetFrameworkVersion>v8.0</TargetFrameworkVersion>
-    <SilverlightVersion>$(TargetFrameworkVersion)</SilverlightVersion>
-    <SilverlightApplication>true</SilverlightApplication>
-    <SupportedCultures>
-    </SupportedCultures>
-    <XapOutputs>true</XapOutputs>
-    <GenerateSilverlightManifest>true</GenerateSilverlightManifest>
-    <XapFilename>CampusAppWP8_$(Configuration)_$(Platform).xap</XapFilename>
-    <SilverlightManifestTemplate>Properties\AppManifest.xml</SilverlightManifestTemplate>
-    <SilverlightAppEntry>CampusAppWP8.App</SilverlightAppEntry>
-    <ValidateXaml>true</ValidateXaml>
-    <MinimumVisualStudioVersion>11.0</MinimumVisualStudioVersion>
-    <ThrowErrorsInValidation>true</ThrowErrorsInValidation>
-    <ExpressionBlendVersion>5.0.40218.0</ExpressionBlendVersion>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>Bin\Debug</OutputPath>
-    <DefineConstants>DEBUG;TRACE;SILVERLIGHT;WINDOWS_PHONE</DefineConstants>
-    <NoStdLib>true</NoStdLib>
-    <NoConfig>true</NoConfig>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <DocumentationFile>
-    </DocumentationFile>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>Bin\Release</OutputPath>
-    <DefineConstants>TRACE;SILVERLIGHT;WINDOWS_PHONE</DefineConstants>
-    <NoStdLib>true</NoStdLib>
-    <NoConfig>true</NoConfig>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>Bin\x86\Debug</OutputPath>
-    <DefineConstants>DEBUG;TRACE;SILVERLIGHT;WINDOWS_PHONE</DefineConstants>
-    <NoStdLib>true</NoStdLib>
-    <NoConfig>true</NoConfig>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>Bin\x86\Release</OutputPath>
-    <DefineConstants>TRACE;SILVERLIGHT;WINDOWS_PHONE</DefineConstants>
-    <NoStdLib>true</NoStdLib>
-    <NoConfig>true</NoConfig>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|ARM' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>Bin\ARM\Debug</OutputPath>
-    <DefineConstants>DEBUG;TRACE;SILVERLIGHT;WINDOWS_PHONE</DefineConstants>
-    <NoStdLib>true</NoStdLib>
-    <NoConfig>true</NoConfig>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|ARM' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>Bin\ARM\Release</OutputPath>
-    <DefineConstants>TRACE;SILVERLIGHT;WINDOWS_PHONE</DefineConstants>
-    <NoStdLib>true</NoStdLib>
-    <NoConfig>true</NoConfig>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-  </PropertyGroup>
-  <ItemGroup>
-    <Compile Include="App.xaml.cs">
-      <DependentUpon>App.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="LocalizedStrings.cs" />
-    <Compile Include="Model\Departments\ChairModel.cs" />
-    <Compile Include="Model\Departments\DepartmentModel.cs" />
-    <Compile Include="Model\Departments\DepartmentViewModel.cs" />
-    <Compile Include="Model\Departments\FacultyModel.cs" />
-    <Compile Include="Model\Events\RSSChannelModel.cs" />
-    <Compile Include="Model\Events\RSSViewModel.cs" />
-    <Compile Include="Model\Lecture\LectureActivity.cs" />
-    <Compile Include="Model\Lecture\LectureCourse.cs" />
-    <Compile Include="Model\Lecture\LectureDate.cs" />
-    <Compile Include="Model\Lecture\LectureLecturer.cs" />
-    <Compile Include="Model\Lecture\LectureList.cs" />
-    <Compile Include="Model\Lecture\LectureModul.cs" />
-    <Compile Include="Model\Mensa\MenuModel.cs" />
-    <Compile Include="Model\Mensa\MenuWeekModel.cs" />
-    <Compile Include="Pages\Campusmap\CampusMapPage.xaml.cs">
-      <DependentUpon>CampusMapPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Pages\Lecture\LectureFeed.cs" />
-    <Compile Include="Feed\Departments\DepartmentFeed.cs" />
-    <Compile Include="Pages\Departments\DepartmentPage.xaml.cs">
-      <DependentUpon>DepartmentPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Feed\Events\EventFeed.cs" />
-    <Compile Include="Pages\Events\EventIndexPage.xaml.cs">
-      <DependentUpon>EventIndexPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Pages\Events\EventPage.xaml.cs">
-      <DependentUpon>EventPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="pages\lecture\LecturePage.xaml.cs">
-      <DependentUpon>LecturePage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Model\BaseModel.cs" />
-    <Compile Include="Model\BaseViewModel.cs" />
-    <Compile Include="Feed\Mensa\MensaFeed.cs" />
-    <Compile Include="Pages\Lecture\ModulWebPage.xaml.cs">
-      <DependentUpon>ModulWebPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Pages\Lecture\ResultDetailPage.xaml.cs">
-      <DependentUpon>ResultDetailPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Pages\Lecture\ResultPage.xaml.cs">
-      <DependentUpon>ResultPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Pages\Mensa\MensaPage.xaml.cs">
-      <DependentUpon>MensaPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Feed\News\NewsFeed.cs" />
-    <Compile Include="Pages\News\NewsIndexPage.xaml.cs">
-      <DependentUpon>NewsIndexPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Pages\News\NewsPage.xaml.cs">
-      <DependentUpon>NewsPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Model\Events\RSSModel.cs" />
-    <Compile Include="pages\StartPage.xaml.cs">
-      <DependentUpon>StartPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Pages\Webmail\WebmailPage.xaml.cs">
-      <DependentUpon>WebmailPage.xaml</DependentUpon>
-    </Compile>
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="Resources\AppResources.Designer.cs">
-      <AutoGen>True</AutoGen>
-      <DesignTime>True</DesignTime>
-      <DependentUpon>AppResources.resx</DependentUpon>
-    </Compile>
-    <Compile Include="Resources\Constants.Designer.cs">
-      <AutoGen>True</AutoGen>
-      <DesignTime>True</DesignTime>
-      <DependentUpon>Constants.resx</DependentUpon>
-    </Compile>
-    <Compile Include="Utility\Feed.cs" />
-    <Compile Include="Utility\FeedEventHandler.cs" />
-    <Compile Include="Utility\FileList.cs" />
-    <Compile Include="Utility\FileManager.cs" />
-    <Compile Include="Utility\Logger.cs" />
-    <Compile Include="Utility\RestApi.cs" />
-    <Compile Include="Utility\StringManager.cs" />
-    <Compile Include="Utility\URLList.cs" />
-    <Compile Include="Utility\XmlFeed.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <ApplicationDefinition Include="App.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </ApplicationDefinition>
-    <Page Include="Pages\Campusmap\CampusMapPage.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
-    <Page Include="Pages\Departments\DepartmentPage.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
-    <Page Include="Pages\Lecture\LecturePage.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
-    <Page Include="Pages\Lecture\ModulWebPage.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
-    <Page Include="Pages\Lecture\ResultDetailPage.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
-    <Page Include="Pages\Lecture\ResultPage.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
-    <Page Include="Pages\Events\EventIndexPage.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
-    <Page Include="Pages\Events\EventPage.xaml">
-      <Generator>MSBuild:Compile</Generator>
-      <SubType>Designer</SubType>
-    </Page>
-    <Page Include="Pages\Mensa\MensaPage.xaml">
-      <Generator>MSBuild:Compile</Generator>
-      <SubType>Designer</SubType>
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-    <Page Include="Pages\News\NewsIndexPage.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
-    <Page Include="Pages\News\NewsPage.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
-    <Page Include="pages\StartPage.xaml">
-      <SubType>Designer</SubType>
-      <Generator>MSBuild:Compile</Generator>
-    </Page>
-    <Page Include="Pages\Webmail\WebmailPage.xaml">
-      <Generator>MSBuild:Compile</Generator>
-      <SubType>Designer</SubType>
-    </Page>
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="Assets\psd\holo_optionsbuttons.psd" />
-    <None Include="Assets\psd\iconbutton_effects2.psd" />
-    <None Include="packages.config" />
-    <None Include="Properties\AppManifest.xml" />
-    <None Include="Properties\WMAppManifest.xml">
-      <SubType>Designer</SubType>
-    </None>
-  </ItemGroup>
-  <ItemGroup>
-    <Content Include="Assets\AlignmentGrid.png" />
-    <Content Include="Assets\ApplicationIcon.png">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Content>
-    <Content Include="Assets\icons\campus_159_dark.png" />
-    <Content Include="Assets\icons\campus_159_light.png" />
-    <Content Include="Assets\icons\departments_159_dark.png" />
-    <Content Include="Assets\icons\departments_159_light.png" />
-    <Content Include="Assets\icons\homework_159_dark.png" />
-    <Content Include="Assets\icons\homework_159_light.png" />
-    <Content Include="Assets\icons\link_159_dark.png" />
-    <Content Include="Assets\icons\link_159_light.png" />
-    <Content Include="Assets\icons\lectures_159_dark.png" />
-    <Content Include="Assets\icons\lectures_159_light.png" />
-    <Content Include="Assets\icons\mensa_159_dark.png" />
-    <Content Include="Assets\icons\mensa_159_light.png" />
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+    <Reference Include="Microsoft.Phone.Controls, Version=8.0.0.0, Culture=neutral, PublicKeyToken=24eec0d8c86cda1e, processorArchitecture=MSIL" />
+    <Reference Include="Microsoft.Phone.Controls.Toolkit">
+      <HintPath>..\packages\WPtoolkit.4.2012.10.30\lib\wp8\Microsoft.Phone.Controls.Toolkit.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup />
+  <Import Project="$(MSBuildExtensionsPath)\Microsoft\$(TargetFrameworkIdentifier)\$(TargetFrameworkVersion)\Microsoft.$(TargetFrameworkIdentifier).$(TargetFrameworkVersion).Overrides.targets" />
+  <Import Project="$(MSBuildExtensionsPath)\Microsoft\$(TargetFrameworkIdentifier)\$(TargetFrameworkVersion)\Microsoft.$(TargetFrameworkIdentifier).CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+  <ProjectExtensions />
 </Project>

CampusAppWP8/CampusAppWP8/Const.cs

@@ -0,0 +1,33 @@
+//-----------------------------------------------------------------------
+// <copyright file="Const.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>08.07.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8
+{
+    using CampusAppWP8.Resources;
+
+    /// <summary>
+    /// Access to Constants.rex
+    /// </summary>
+    public class Const
+    {
+        /// <summary>
+        /// Resource object.
+        /// </summary>
+        private static Constants constantResources = new Constants();
+
+        /// <summary>
+        /// Gets the resource object.
+        /// </summary>
+        public Constants Constants
+        {
+            get
+            {
+                return constantResources;
+            }
+        }
+    }
+}

CampusAppWP8/CampusAppWP8/Feed/Departments/DepartmentFavoriteFeed.cs

@@ -0,0 +1,103 @@
+//-----------------------------------------------------------------------
+// <copyright file="DepartmentFavoriteFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>01.07.2013</sience>
+//----------------------------------------------------------------------using System;
+namespace CampusAppWP8.Feed.Departments
+{
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Departments;
+    using CampusAppWP8.Resources;
+
+    /// <summary>
+    /// Feed object to handle favorite department feeds. 
+    /// </summary>
+    public class DepartmentFavoriteFeed : XmlModel<DepartmentModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DepartmentFavoriteFeed" /> class.
+        /// </summary>
+        /// <param name="autoLoad">automatic loading of the data</param>
+        public DepartmentFavoriteFeed(bool autoLoad = true)
+            : base(ModelType.File, Constants.FileDepartment_Favorite_Name, string.Empty)
+        {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+
+            if (autoLoad == true)
+            {
+                this.LoadData();
+            }
+        }
+
+        // Constructor
+        #endregion
+
+        #region Method
+
+        #region Protected
+
+        /// <summary>
+        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>.
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(DepartmentModel model)
+        {
+            bool retValue = true;
+
+            if ((model == null)
+            || (model.Faculties == null)
+            || (model.Faculties.Count != 1))
+            {
+                retValue = false;
+            }
+            
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>.
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnLoad(DepartmentModel model, FileInfo info)
+        {
+            bool retValue = false;
+
+            if (this.Model == null)
+            {
+                retValue = true;
+            }
+            
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>.
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(DepartmentModel model, FileInfo info)
+        {
+            bool retValue = false;
+
+            retValue = (model.HasChanged() == false) ? true : false;
+            
+            return retValue;
+        }
+
+        // Protected
+        #endregion
+
+        // Method
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/Feed/Departments/DepartmentFeed.cs

@@ -1,37 +1,116 @@
-using CampusAppWP8.Model.Departments;
-using CampusAppWP8.Utility;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
+//-----------------------------------------------------------------------
+// <copyright file="DepartmentFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Feed.Departments
 {
-    class DepartmentFeed : XmlFeed<DepartmentViewModel>
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Departments;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+    
+    /// <summary>
+    /// Feed class for the department information.
+    /// </summary>
+    public class DepartmentFeed : XmlModel<DepartmentModel>
     {
-        public DepartmentFeed() : base(URLList.DepartmentFeedURL, "DepartmentFeed.xml")
+        #region Constructor
+        
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DepartmentFeed" /> class.
+        /// </summary>
+        /// <param name="autoLoad">automatic loading of the data</param>
+        public DepartmentFeed(bool autoLoad = true)
+            : base(ModelType.FileAndFeed, Constants.FileDepartment_Name, Constants.UrlDepartment_Addr)
         {
-            
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+
+            if (autoLoad == true)
+            {
+                this.LoadData();
+            }
         }
-        public System.Collections.ObjectModel.ObservableCollection<FacultyModel> _faculties { get; set; }
+     
+        // Constructor
+        #endregion
+
+        #region Method
+
+        #region Protected
 
         /// <summary>
-        /// Method implement CheckIsModelUpToDate()-Method <see cref="Feed"/>
+        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>.
         /// </summary>
+        /// <param name="model">model object</param>
         /// <returns>true, if model is up-to-date, otherwise false</returns>
-        protected override bool CheckIsModelUpToDate()
+        private bool CheckIsModelUpToDate(DepartmentModel model)
         {
-            return false;
+            bool retValue = true;
+
+            if (model == null)
+            {
+                retValue = false;
+            }
+            else
+            {
+                retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, model.CreateTime, 7.0);
+            }
+            
+            return retValue;
         }
 
         /// <summary>
-        /// Method implement CheckIsFileUpToDate()-Method <see cref="Feed"/>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>.
         /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
         /// <returns>true, if file is up-to-date, otherwise false</returns>
-        protected override bool CheckIsFileUpToDate()
+        private bool CheckIsFileUpToDateOnLoad(DepartmentModel model, FileInfo info)
         {
-            return false;
+            bool retValue = true;
+
+            if (model == null) 
+            {
+                // at loading
+                if (info.Exists == true)
+                {
+                    retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, info.LastWriteTime, 7.0);
+                }
+            }
+            
+            return retValue;
         }
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>.
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(DepartmentModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            // at saving
+            if ((info.Exists == false)
+            || (info.Length == 0))
+            {
+                retValue = false;
+            }
+        
+            return retValue;
+        }
+
+        // Protedted
+        #endregion
+
+        // Method
+        #endregion
     }
 }

CampusAppWP8/CampusAppWP8/Feed/Events/EventFeed.cs

@@ -1,41 +1,100 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-using CampusAppWP8.Model.events_news;
-using CampusAppWP8.Utility;
-
+//-----------------------------------------------------------------------
+// <copyright file="EventFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Feed.Events
 {
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.RSS;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+
     /// <summary>
     /// Event Feed.
     /// </summary>
-    public class EventFeed : XmlFeed<RSSViewModel>
+    public class EventFeed : XmlModel<RSSViewModel>
     {
         /// <summary>
-        /// Default constructor.
+        /// Initializes a new instance of the <see cref="EventFeed" /> class.
         /// </summary>
-        public EventFeed() : base(URLList.EventsFeedURL, "EventFeed.xml")
+        /// <param name="autoLoad">automatic loading of the data</param>
+        public EventFeed(bool autoLoad = true)
+            : base(ModelType.FileAndFeed, Constants.FileEvents_Name, Constants.UrlEvents_Addr)
         {
-        }
-        /// <summary>
-        /// Method implement CheckIsModelUpToDate()-Method <see cref="Feed"/>
-        /// </summary>
-        /// <returns>true, if model is up-to-date, otherwise false</returns>
-        protected override bool CheckIsModelUpToDate()
-        {
-            return false;
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+
+            if (autoLoad == true)
+            {
+                this.LoadData();
+            }
         }
 
         /// <summary>
-        /// Method implement CheckIsFileUpToDate()-Method <see cref="Feed"/>
+        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>
         /// </summary>
-        /// <returns>true, if file is up-to-date, otherwise false</returns>
-        protected override bool CheckIsFileUpToDate()
+        /// <param name="model">model object</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(RSSViewModel model)
         {
-            return true;
+            bool retValue = true;
+
+            if (model == null)
+            {
+                retValue = false;
+            }
+            else
+            {
+                retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, model.CreateTime, 1.0);
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnLoad(RSSViewModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            if (model == null) 
+            {
+                // at loading
+                if (info.Exists == true)
+                {
+                    retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, info.LastWriteTime, 1.0);
+                }
+            }
+            
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(RSSViewModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            if ((info.Exists == false)
+            || (info.Length == 0))
+            {
+                retValue = false;
+            }
+        
+            return retValue;
         }
     }
 }

CampusAppWP8/CampusAppWP8/Feed/Link/ClubLinkFeed.cs

@@ -0,0 +1,88 @@
+//-----------------------------------------------------------------------
+// <copyright file="ClubLinkFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>02.07.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Feed.Link
+{
+    using System;
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Link;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+
+    /// <summary>
+    /// This Class is for ClubLinkFeeds
+    /// </summary>
+    public class ClubLinkFeed : XmlModel<LinkListModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="ClubLinkFeed" /> class.
+        /// </summary>
+        public ClubLinkFeed()
+            : base(ModelType.FileAndFeed, Constants.FileLink_ClubLinks, Constants.UrlLink_ClubLinks)
+        {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDate);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDate);
+        }
+
+        #endregion
+
+        #region Method
+
+        #region Private
+
+        /// <summary>
+        /// Method check if the FeedModel is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(LinkListModel model)
+        {
+            if (model == null)
+            {
+                return false;
+            }
+
+            DateTime lastModified = model.CreateTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="fileInfo">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDate(LinkListModel model, FileInfo fileInfo)
+        {
+            if (fileInfo == null || !fileInfo.Exists)
+            {
+                return false;
+            }
+
+            DateTime lastModified = fileInfo.LastWriteTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Check if the model or file is up-to-date.
+        /// </summary>
+        /// <param name="lastModified">Date of the last modification</param>
+        /// <returns>true, if is up-to-date, otherwise false</returns>
+        private bool CheckIsUpToDate(DateTime lastModified)
+        {
+            return Utilities.DayDifference(Utilities.DifferenceType.Less, lastModified, 7.0);
+        }
+
+        #endregion
+
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs

@@ -0,0 +1,88 @@
+//-----------------------------------------------------------------------
+// <copyright file="CommonLinkFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>02.07.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Feed.Link
+{
+    using System;
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Link;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+
+    /// <summary>
+    /// This Class is for CommonLinkFeeds
+    /// </summary>
+    public class CommonLinkFeed : XmlModel<LinkListModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="CommonLinkFeed" /> class.
+        /// </summary>
+        public CommonLinkFeed()
+            : base(ModelType.FileAndFeed, Constants.FileLink_CommonLinks, Constants.UrlLink_CommonLinks)
+        {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDate);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDate);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+        }
+
+        #endregion
+
+        #region Method
+
+        #region Private
+
+        /// <summary>
+        /// Method check if the FeedModel is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(LinkListModel model)
+        {
+            if (model == null)
+            {
+                return false;
+            }
+
+            DateTime lastModified = model.CreateTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="fileInfo">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDate(LinkListModel model, FileInfo fileInfo)
+        {
+            if (fileInfo == null || !fileInfo.Exists)
+            {
+                return false;
+            }
+
+            DateTime lastModified = fileInfo.LastWriteTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Check if the model or file is up-to-date.
+        /// </summary>
+        /// <param name="lastModified">Date of the last modification</param>
+        /// <returns>true, if is up-to-date, otherwise false</returns>
+        private bool CheckIsUpToDate(DateTime lastModified)
+        {
+            return Utilities.DayDifference(Utilities.DifferenceType.Less, lastModified, 7.0);
+        }
+
+        #endregion
+
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/Feed/Mensa/MensaFeed.cs

@@ -5,17 +5,18 @@
 // <author>stubbfel</author>
 // <sience>03.05.2013</sience>
 //----------------------------------------------------------------------
-namespace CampusAppWP8.Pages.Mensa
+namespace CampusAppWP8.Feed.Mensa
 {
     using System;
-    using System.Collections.ObjectModel;
+    using System.IO;
+    using CampusAppWP8.Model;
     using CampusAppWP8.Model.Mensa;
-    using CampusAppWP8.Utility;
+    using CampusAppWP8.Resources;
 
     /// <summary>
-    /// This Class is for MesaFeeds
+    /// This Class is for MensaFeeds
     /// </summary>
-    public class MensaFeed : XmlFeed<MenuWeekModel>
+    public class MensaFeed : XmlModel<MenuWeekModel>
     {
         #region Constructor
 
@@ -23,40 +24,52 @@ namespace CampusAppWP8.Pages.Mensa
         ///  Initializes a new instance of the <see cref="MensaFeed" /> class.
         /// </summary>
         public MensaFeed()
-            : base(URLList.MensaFeedURL, FileList.MensaXmlFile)
+            : base(ModelType.FileAndFeed, Constants.FileMensa_Shedule, Constants.UrlMensa_Week)
         {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDate);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDate);
         }
 
         #endregion
 
         #region Method
 
-        #region Protected
-
-        /// <summary>
-        /// Method implement CheckIsModelUpToDate()-Method <see cref="Feed"/>
-        /// </summary>
-        /// <returns>true, if model is up-to-date, otherwise false</returns>
-        protected override bool CheckIsModelUpToDate()
-        {
-            DateTime lastModified = this.Model.CreateTime;
-            return this.CheckIsUpToDate(lastModified);
-        }
-
-        /// <summary>
-        /// Method implement CheckIsFileUpToDate()-Method <see cref="Feed"/>
-        /// </summary>
-        /// <returns>true, if file is up-to-date, otherwise false</returns>
-        protected override bool CheckIsFileUpToDate()
-        {
-            DateTime lastModified = FileManager.GetFileInfo(FileName).LastWriteTime;
-            return this.CheckIsUpToDate(lastModified);
-        }
-
-        #endregion
-
         #region Private
 
+        /// <summary>
+        /// Method check if the FeedModel is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(MenuWeekModel model)
+        {
+            if (model == null)
+            {
+                return false;
+            }
+
+            DateTime lastModified = model.CreateTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="fileInfo">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDate(MenuWeekModel model, FileInfo fileInfo)
+        {
+            if (fileInfo == null || !fileInfo.Exists)
+            {
+                return false;
+            }
+
+            DateTime lastModified = fileInfo.LastWriteTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
         /// <summary>
         /// Method check if the last modification was later as the NewMenuWeekDay
         /// </summary>

CampusAppWP8/CampusAppWP8/Feed/News/NewsFeed.cs

@@ -1,42 +1,99 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-using CampusAppWP8.Model.events_news;
-using CampusAppWP8.Utility;
-
+//-----------------------------------------------------------------------------
+// <copyright file="NewsFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//-----------------------------------------------------------------------------
 namespace CampusAppWP8.Feed.News
 {
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.RSS;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+
     /// <summary>
     /// News Feed.
     /// </summary>
-    public class NewsFeed : XmlFeed<RSSViewModel>
+    public class NewsFeed : XmlModel<RSSViewModel>
     {
         /// <summary>
-        /// Default constructor.
+        /// Initializes a new instance of the <see cref="NewsFeed" /> class.
         /// </summary>
-        public NewsFeed() : base(URLList.NewsFeedURL, "NewsFeed.xml")
+        /// <param name="autoLoad">automatic loading of the data</param>
+        public NewsFeed(bool autoLoad = true)
+            : base(ModelType.FileAndFeed, Constants.FileNews_Name, Constants.UrlNews_Addr)
         {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+
+            if (autoLoad == true)
+            {
+                this.LoadData();
+            }
         }
 
         /// <summary>
-        /// Method implement CheckIsModelUpToDate()-Method <see cref="Feed"/>
+        /// Method implement CheckIsModelUpToDate()-Method <see cref="Pages"/>
         /// </summary>
+        /// <param name="model">model object</param>
         /// <returns>true, if model is up-to-date, otherwise false</returns>
-        protected override bool CheckIsModelUpToDate()
+        private bool CheckIsModelUpToDate(RSSViewModel model)
         {
-            return false;
+            bool retValue = true;
+
+            if (model == null)
+            {
+                retValue = false;
+            }
+            else
+            {
+                retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, model.CreateTime, 1.0);
+            }
+
+            return retValue;
         }
 
         /// <summary>
-        /// Method implement CheckIsFileUpToDate()-Method <see cref="Feed"/>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
         /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">info object of the file</param>
         /// <returns>true, if file is up-to-date, otherwise false</returns>
-        protected override bool CheckIsFileUpToDate()
+        private bool CheckIsFileUpToDateOnLoad(RSSViewModel model, FileInfo info)
         {
-            return true;
+            bool retValue = true;
+
+            if (model == null) 
+            {
+                if (info.Exists == true)
+                {
+                    retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, info.LastWriteTime, 1.0);
+                }
+            }
+            
+            return retValue;
+        }
+        
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">info object of the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(RSSViewModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            if ((info.Exists == false)
+            || (info.Length == 0))
+            {
+                retValue = false;
+            }
+        
+            return retValue;
         }
     }
 }

CampusAppWP8/CampusAppWP8/Feed/Openinghours/OpeninghoursFeed.cs

@@ -0,0 +1,105 @@
+//-----------------------------------------------------------------------
+// <copyright file="OpeninghoursFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Feed.Openinghours
+{
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Openinghours;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+    
+    /// <summary>
+    /// This Class is for MesaFeeds
+    /// </summary>
+    public class OpeninghoursFeed : XmlModel<OpeninghoursModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="OpeninghoursFeed" /> class.
+        /// </summary>
+        public OpeninghoursFeed()
+            : base(ModelType.FileAndFeed, Constants.FileOpeningHours_OpeningHours,  Constants.UrlOpeningHours_OpeningHours)
+        {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+        }
+
+        #endregion
+
+        #region Method
+
+        #region Private
+
+        /// <summary>
+        /// Method check if the FeedModel is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(OpeninghoursModel model)
+        {
+            bool retValue = true;
+
+            if (model == null)
+            {
+                retValue = false;
+            }
+            else
+            {
+                retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, model.CreateTime, 7.0);
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="info">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnLoad(OpeninghoursModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            if (model == null)
+            {
+                if (info.Exists == true)
+                {
+                    retValue = Utilities.DayDifference(Utilities.DifferenceType.Less, info.LastWriteTime, 7.0);
+                }
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="info">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(OpeninghoursModel model, FileInfo info)
+        {
+            bool retValue = true;
+
+            if ((info.Exists == false)
+            || (info.Length == 0))
+            {
+                retValue = false;
+            }
+
+            return retValue;
+        }
+
+        #endregion
+
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/Feed/StudentCouncil/StudentCouncilFeed.cs

@@ -0,0 +1,88 @@
+//-----------------------------------------------------------------------
+// <copyright file="StudentCouncilFeed.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>02.07.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Feed.StudentCouncil
+{
+    using System;
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.StudentCouncil;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+
+    /// <summary>
+    /// This Class is for  StudentCouncilFeed
+    /// </summary>
+    public class StudentCouncilFeed : XmlModel<StudentCouncilListModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="StudentCouncilFeed" /> class.
+        /// </summary>
+        public StudentCouncilFeed()
+            : base(ModelType.FileAndFeed, Constants.FileStudentCouncil_StudentCouncils, Constants.UrlStudentCouncil_StudentCouncils)
+        {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDate);
+            this.isModelUpToDateOnLoad += new IsModelUpToDate(this.CheckIsModelUpToDate);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDate);
+        }
+
+        #endregion
+
+        #region Method
+
+        #region Private
+
+        /// <summary>
+        /// Method check if the FeedModel is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <returns>true, if model is up-to-date, otherwise false</returns>
+        private bool CheckIsModelUpToDate(StudentCouncilListModel model)
+        {
+            if (model == null)
+            {
+                return false;
+            }
+
+            DateTime lastModified = model.CreateTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Method check if the FeedFile is up-to-date
+        /// </summary>
+        /// <param name="model">reference of the FeedModel</param>
+        /// <param name="fileInfo">info about the file</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDate(StudentCouncilListModel model, FileInfo fileInfo)
+        {
+            if (fileInfo == null || !fileInfo.Exists)
+            {
+                return false;
+            }
+
+            DateTime lastModified = fileInfo.LastWriteTime;
+            return this.CheckIsUpToDate(lastModified);
+        }
+
+        /// <summary>
+        /// Check if the model or file is up-to-date.
+        /// </summary>
+        /// <param name="lastModified">Date of the last modification</param>
+        /// <returns>true, if is up-to-date, otherwise false</returns>
+        private bool CheckIsUpToDate(DateTime lastModified)
+        {
+            return Utilities.DayDifference(Utilities.DifferenceType.Less, lastModified, 7.0);
+        }
+
+        #endregion
+
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/File/Setting/UserProfilFile.cs

@@ -0,0 +1,67 @@
+//-----------------------------------------------------------------------
+// <copyright file="UserProfilFile.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>23.07.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.File.Setting
+{
+    using System.IO;
+    using CampusAppWP8.Model;
+    using CampusAppWP8.Model.Setting;
+    using CampusAppWP8.Resources;
+
+    /// <summary>
+    /// Class for handle the user-profile-file
+    /// </summary>
+    public class UserProfilFile : XmlModel<UserProfilModel>
+    {
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="UserProfilFile" /> class.
+        /// </summary>
+        public UserProfilFile()
+            : base(ModelType.File, Constants.FileProfil_User)
+        {
+            this.isFileUpToDateOnLoad += new IsFileUpToDate(this.CheckIsFileUpToDateOnLoad);
+            this.isFileUpToDateOnSave += new IsFileUpToDate(this.CheckIsFileUpToDateOnSave);
+        }
+
+        // Constructor
+        #endregion
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>.
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnLoad(UserProfilModel model, FileInfo info)
+        {
+            if (model == null)
+            {
+                return true;
+            }
+
+            return false;
+        }
+
+        /// <summary>
+        /// Method implement CheckIsFileUpToDate()-Method <see cref="Pages"/>.
+        /// </summary>
+        /// <param name="model">model object</param>
+        /// <param name="info">file info object</param>
+        /// <returns>true, if file is up-to-date, otherwise false</returns>
+        private bool CheckIsFileUpToDateOnSave(UserProfilModel model, FileInfo info)
+        {
+            if (model != null && !model.HasChanged())
+            {
+                return true;
+            }
+
+            return false;
+        }
+    }
+}

CampusAppWP8/CampusAppWP8/Model/Campusmap/MapModel.cs

@@ -0,0 +1,177 @@
+//-----------------------------------------------------------------------
+// <copyright file="MapModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Model.Campusmap
+{
+    using System;
+    using System.Windows;
+    using System.Windows.Controls;
+    using System.Windows.Media.Imaging;
+
+    /// <summary>
+    /// This Class manage the properties of a Map
+    /// </summary>
+    public class MapModel
+    {
+        #region Constructors
+
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="MapModel" /> class.
+        /// </summary>
+        public MapModel()
+        {
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets or sets the ImageSource of the map
+        /// </summary>
+        public string ImageSource { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageWidth of the map
+        /// </summary>
+        public double ImageWidth { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageHeight of the map
+        /// </summary>
+        public double ImageHeight { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageOffsetX of the map
+        /// </summary>
+        public double MapImageOffsetX { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageOffsetY of the map
+        /// </summary>
+        public double MapImageOffsetY { get; set; }
+
+        /// <summary>
+        /// Gets or sets the GeoOffsetX of the map
+        /// </summary>
+        public double GeoOffsetX { get; set; }
+
+        /// <summary>
+        /// Gets or sets the GeoOffsetY of the map
+        /// </summary>
+        public double GeoOffsetY { get; set; }
+
+        /// <summary>
+        /// Gets or sets the Scale (to pixel) of the map
+        /// </summary>
+        public double Scale { get; set; }
+
+        /// <summary>
+        /// Gets or sets the reference point
+        /// </summary>
+        public Point RefPoint { get; set; }
+
+        #endregion
+
+        #region Methods
+
+        /// <summary>
+        ///  Method calculate the coordinates of  ScrollToOffsets point
+        /// </summary>
+        /// <param name="point">input point</param>
+        /// <returns>point (in pixel)</returns>
+        public Point GetScrollPoint(Point point)
+        {
+            return this.GetScrollPoint(point.X, point.Y);
+        }
+
+        /// <summary>
+        ///  Method calculate the coordinates of ScrollToOffsets point
+        /// </summary>
+        /// <remarks>the input-point will be shown in the center</remarks>
+        /// <param name="x">x - coordinate</param>
+        /// <param name="y">y - coordinate</param>
+        /// <returns>point (in pixel)</returns>
+        public Point GetScrollPoint(double x, double y)
+        {
+            x = this.RefPoint.X + this.MapImageOffsetX + x;
+            y = this.RefPoint.Y + this.MapImageOffsetY - y;
+            return new Point(x, y);
+        }
+
+        /// <summary>
+        /// Method create in image, which can show at a certain position 
+        /// </summary>
+        /// <param name="x">the x- coordinate</param>
+        /// <param name="y">the y-coordinate</param>
+        /// <returns>image of the pin</returns>
+        public Image AddPin(double x, double y)
+        {
+            Point position = new Point(x, y);
+            return this.AddPin(position);
+        }
+
+        /// <summary>
+        /// Method create in image, which can show at a certain position depend of the <see cref="RefPoint" />
+        /// </summary>
+        /// <param name="x">the x-coordinate</param>
+        /// <param name="y">the y-coordinate</param>
+        /// <returns>image of the pin</returns>
+        public Image AddPinFromRefPoint(double x, double y)
+        {
+            Point position = new Point(this.RefPoint.X + x, this.RefPoint.Y - y);
+            return this.AddPin(position);
+        }
+
+        /// <summary>
+        /// Method create in image, which can show at a certain position depend of the <see cref="RefPoint" />
+        /// </summary>
+        /// <param name="position">input point</param>
+        /// <returns>image of the pin</returns>
+        public Image AddPinFromRefPoint(Point position)
+        {
+            return this.AddPinFromRefPoint(position.X, position.Y);
+        }
+
+        /// <summary>
+        /// Method create in image, which can show at a certain position 
+        /// </summary>
+        /// <param name="position">input point</param>
+        /// <returns>image of the pin</returns>
+        public Image AddPin(Point position)
+        {
+            MapPinModel pin = new MapPinModel() { Position = position };
+            Image pinImg = new Image() { Source = new BitmapImage(new Uri(pin.ImageSource, UriKind.Relative)), Width = pin.ImageWidth };
+            Canvas.SetTop(pinImg, pin.Position.Y);
+            Canvas.SetLeft(pinImg, pin.Position.X);
+            return pinImg;
+        }
+
+        /// <summary>
+        /// Convert a coordinates to coordinates which address pixels
+        /// </summary>
+        /// <param name="x">the x-coordinate</param>
+        /// <param name="y">the y-coordinate</param>
+        /// <returns>Point in pixel-size</returns>
+        public Point ConverToPixelPoint(double x, double y)
+        {
+            return new Point { X = this.Scale * x, Y = this.Scale * y };
+        }
+
+        /// <summary>
+        /// Convert a coordinates to coordinates which address pixels
+        /// </summary>
+        /// <param name="point">not scaled point</param>
+        /// <returns>Point in pixel-size</returns>
+        public Point ConverToPixelPoint(Point point)
+        {
+            return this.ConverToPixelPoint(point.X, point.Y);
+        }
+
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/Model/Campusmap/MapPinModel.cs

@@ -0,0 +1,106 @@
+//-----------------------------------------------------------------------
+// <copyright file="MapPinModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Model.Campusmap
+{
+    using System.Windows;
+
+    /// <summary>
+    /// This Class manage the properties of a MapPin
+    /// </summary>
+    public class MapPinModel
+    {
+        #region Member
+
+        /// <summary>
+        /// Variable of the actual position of the pin
+        /// </summary>
+        private Point position;
+
+        #endregion
+        #region Constructor
+        /// <summary>
+        ///  Initializes a new instance of the <see cref="MapPinModel" /> class.
+        /// </summary>
+        public MapPinModel()
+        {
+            this.ImageSource = "/Assets/icons/search_159_light.png";
+            this.ImageWidth = 60;
+            this.ImageHeight = 60;
+            this.PinImageOffsetX = -24;
+            this.PinImageOffsetY = -24;
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets or sets the ImageSource of the pin
+        /// </summary>
+        public string ImageSource { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageWidth of the pin
+        /// </summary>
+        public double ImageWidth { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageHeight of the pin
+        /// </summary>
+        public double ImageHeight { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageOffsetX of the pin
+        /// </summary>
+        public double PinImageOffsetX { get; set; }
+
+        /// <summary>
+        /// Gets or sets the ImageOffsetY of the pin
+        /// </summary>
+        public double PinImageOffsetY { get; set; }
+
+        /// <summary>
+        /// Gets or sets position of the pin
+        /// </summary>
+        public Point Position
+        {
+            get
+            {
+                return this.position;
+            }
+
+            set
+            {
+                // null assert
+                if (value == null)
+                {
+                    return;
+                }
+
+                if (this.position == null)
+                {
+                    this.position = value;
+                    return;
+                }
+
+                // check the x-value
+                if (value.X + this.PinImageOffsetX != this.position.X)
+                {
+                    this.position.X = value.X + this.PinImageOffsetX;
+                }
+
+                // check the y-value
+                if (value.Y + this.PinImageOffsetY != this.position.Y)
+                {
+                    this.position.Y = value.Y + this.PinImageOffsetY;
+                }
+            }
+        }
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/Model/Departments/ChairModel.cs

@@ -1,88 +1,126 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Xml.Serialization;
-
+//-----------------------------------------------------------------------
+// <copyright file="ChairModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Departments
 {
+    using System.Globalization;
+    using System.Xml.Serialization;
+
     /// <summary>
     /// Class to hold information about a professorship chair.
     /// </summary>
-    public class ChairModel : BaseModel
+    public class ChairModel
     {
-        private string name_de;     // german name of the chair
-        private string url;         // link-url to the chair homepage
-        private string name_en;     // english name of the chair
+        /// <summary>
+        /// German name of the chair.
+        /// </summary>
+        private string nameDE = string.Empty;
 
         /// <summary>
-        /// Default Constructor. Set every class variable to default value.
+        /// Link to the chair page.
+        /// </summary>
+        private string url = string.Empty;
+
+        /// <summary>
+        /// English name of the chair.
+        /// </summary>
+        private string nameEN = string.Empty;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ChairModel" /> class.
         /// </summary>
         public ChairModel()
         {
-            this.name_de = String.Empty;
-            this.name_en = String.Empty;
-            this.url = String.Empty;
         }
 
         /// <summary>
-        /// Constructor. Set the german and english name.
+        /// Initializes a new instance of the <see cref="ChairModel" /> class.
         /// </summary>
-        /// <param name="name">Name of the professorship chair.</param>
+        /// <param name="name">name of the chair</param>
         public ChairModel(string name)
         {
-            this.name_de = name;
-            this.name_en = name;
-            this.url = String.Empty;
+            this.nameDE = name;
+            this.nameEN = name;
         }
 
         /// <summary>
-        /// Set or return the german name of the chair.
+        /// Gets or sets the german name of the chair.
         /// </summary>
         [XmlAttribute("name_de")]
-        public string Name_DE
+        public string NameDE
         {
-            get { return this.name_de; }
+            get 
+            { 
+                return this.nameDE;
+            }
+
             set 
             {
-                if (value != this.name_de)
+                if (value != this.nameDE)
                 {
-                    this.name_de = value;
-                    NotifyPropertyChanged("chair");
+                    this.nameDE = value;
                 }
             }
         }
 
         /// <summary>
-        /// Set or return the english name of the chair.
+        /// Gets or sets the english name of the chair.
         /// </summary>
         [XmlAttribute("name_en")]
-        public string Name_EN
+        public string NameEN
         {
-            get { return this.name_en; }
+            get 
+            { 
+                return this.nameEN;
+            }
+
             set
             {
-                if (value != this.name_en)
+                if (value != this.nameEN)
                 {
-                    this.name_en = value;
-                    NotifyPropertyChanged("chair");
+                    this.nameEN = value;
                 }
             }
         }
 
         /// <summary>
-        /// Set or return the url of the chair homepage.
+        /// Gets or sets the url of the chair homepage.
         /// </summary>
         [XmlAttribute("url")]
         public string Url
         {
-            get { return this.url; }
+            get 
+            { 
+                return this.url;
+            }
+
             set 
             {
                 if (value != this.url)
                 {
                     this.url = value;
-                    NotifyPropertyChanged("chair");
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the localized name of the chair.
+        /// </summary>
+        public string Name
+        {
+            get
+            {
+                if (CultureInfo.CurrentUICulture.Name.StartsWith("de"))
+                {
+                    return this.NameDE;
+                }
+                else
+                {
+                    return this.NameEN;
                 }
             }
         }

CampusAppWP8/CampusAppWP8/Model/Departments/DepartmentModel.cs

@@ -1,86 +1,91 @@
-using System;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.Linq;
-using System.Text;
-using System.Windows;
-using System.Xml.Serialization;
-
+//-----------------------------------------------------------------------
+// <copyright file="DepartmentModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Departments
 {
-    public class DepartmentModel : BaseModel
-    {
-        [XmlElement("chair")]
-        public ObservableCollection<ChairModel> _chairs { get; set; }
-        
-        private string _name = "d_mod";
-        private Visibility visible;
+    using System;
+    using System.Collections.ObjectModel;
+    using System.Xml.Serialization;
 
+    /// <summary>
+    /// View model for department page.
+    /// </summary>
+    [XmlRoot("root")]
+    public class DepartmentModel
+    {
+        /// <summary>
+        /// Object to store the time when the instance was created. 
+        /// </summary>
+        private DateTime createTime;
+
+        /// <summary>
+        /// List of faculties.
+        /// </summary>
+        private ObservableCollection<FacultyModel> faculties;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="DepartmentModel" /> class.
+        /// </summary>
         public DepartmentModel()
         {
-            this.visible = Visibility.Collapsed;
-            this.Chairs = new ObservableCollection<ChairModel>();
-            //this.LoadData();
+            this.Faculties = new ObservableCollection<FacultyModel>();
+            this.createTime = DateTime.Now;
         }
 
-        public DepartmentModel(string name)
-        {
-            this.visible = Visibility.Collapsed;
-            _name = name;
-            this.Chairs = new ObservableCollection<ChairModel>();
-            //this.LoadData();
-        }
-
-        public void LoadData()
-        {
-            this.Chairs.Add(new ChairModel("LS 1"));
-            this.Chairs.Add(new ChairModel("LS 2"));
-            this.Chairs.Add(new ChairModel("LS 3"));
-            this.Chairs.Add(new ChairModel("LS 4"));
-        }
-
-        public ObservableCollection<ChairModel> Chairs
+        /// <summary>
+        /// Gets or sets the faculty list.
+        /// </summary>
+        [XmlArray("professorships")]
+        [XmlArrayItem("faculty")]
+        public ObservableCollection<FacultyModel> Faculties
         {
             get
             {
-                return _chairs;
+                return this.faculties;
             }
+
             set
             {
-                if (value != _chairs)
+                if (value != this.faculties)
                 {
-                    _chairs = value;
-                    NotifyPropertyChanged("department");
+                    this.faculties = value;
                 }
             }
         }
 
-        public string Name
+        /// <summary>
+        /// Gets the creation time.
+        /// </summary>
+        public DateTime CreateTime
         {
             get
             {
-                return _name;
-            }
-            set
-            {
-                if (value != _name)
-                {
-                    _name = value;
-                    NotifyPropertyChanged("chair");
-                }
+                return this.createTime;
             }
         }
 
-        public Visibility Visible
+        /// <summary>
+        /// Check if the content of the faculty lists hast changed since the
+        /// last call of this function.
+        /// </summary>
+        /// <returns>true, if changes happen since last request, otherwise false</returns>
+        public bool HasChanged()
         {
-            get { return this.visible; }
-            set
+            bool retValue = false;
+
+            foreach (FacultyModel temp in this.Faculties)
             {
-                if (value != this.visible)
+                if ((temp.HasChanged() == true) && (retValue == false))
                 {
-                    this.visible = value;
+                    retValue = true;
                 }
             }
+
+            return retValue;
         }
     }
 }

CampusAppWP8/CampusAppWP8/Model/Departments/DepartmentViewModel.cs

@@ -1,39 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Xml.Serialization;
-
-namespace CampusAppWP8.Model.Departments
-{
-    [XmlRoot("root")]
-    public class DepartmentViewModel : BaseViewModel
-    {
-        [XmlArray("professorships")]
-        [XmlArrayItem("faculty")]
-        public ObservableCollection<FacultyModel> _faculties { get; set; }
-
-        public DepartmentViewModel()
-        {
-            this.Faculties = new ObservableCollection<FacultyModel>();
-        }
-
-        public ObservableCollection<FacultyModel> Faculties
-        {
-            get
-            {
-                return _faculties;
-            }
-            set
-            {
-                if (value != _faculties)
-                {
-                    _faculties = value;
-                    NotifyPropertyChanged("foodDays");
-                }
-            }
-        }
-    }
-}

CampusAppWP8/CampusAppWP8/Model/Departments/FacultyModel.cs

@@ -1,62 +1,238 @@
-using System;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.Linq;
-using System.Text;
-using System.Xml.Serialization;
-using CampusAppWP8.Resources;
-
+//-----------------------------------------------------------------------
+// <copyright file="FacultyModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>24.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Departments
 {
-    public class FacultyModel : BaseModel
+    using System.Collections.ObjectModel;
+    using System.Xml.Serialization;
+    using CampusAppWP8.Resources;
+    
+    /// <summary>
+    /// Model for holding the faculty information.
+    /// </summary>
+    public class FacultyModel
     {
-        [XmlElement("chair")]
-        public ObservableCollection<ChairModel> chairs { get; set; }
-        //public ObservableCollection<DepartmentModel> _faculties { get; set; }
-        
-        private string name = "t_fak";
+        /// <summary>
+        /// Object to hold the information of the chair containing to this
+        /// faculty.
+        /// </summary>
+        private ObservableCollection<ChairModel> chairs;
         
+        /// <summary>
+        /// Name of the faculty.
+        /// </summary>
+        private string name = string.Empty;
+
+        /// <summary>
+        /// For checking of change.
+        /// </summary>
+        private bool hasChanged = false;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FacultyModel" /> class.
+        /// </summary>
         public FacultyModel()
         {
-            //this.Faculties = new ObservableCollection<DepartmentModel>();
             this.chairs = new ObservableCollection<ChairModel>();
         }
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="FacultyModel" /> class.
+        /// </summary>
+        /// <param name="name">name of the faculty</param>
         public FacultyModel(string name)
         {
             this.name = name;
-            //this.Faculties = new ObservableCollection<DepartmentModel>();
             this.chairs = new ObservableCollection<ChairModel>();
         }
 
+        /// <summary>
+        /// Gets or sets the list of the chairs containing to this faculty.
+        /// </summary>
+        [XmlElement("chair")]
         public ObservableCollection<ChairModel> Chairs
         {
-            get { return this.chairs; }
+            get 
+            { 
+                return this.chairs; 
+            }
+            
             set
             {
                 if (value != this.chairs)
                 {
                     this.chairs = value;
-                    NotifyPropertyChanged("faculty");
                 }
             }
         }
 
-        [XmlAttribute("id")]
+        /// <summary>
+        /// Gets the name of the faculty.
+        /// </summary>
         public string Name
         {
             get
             {
                 return AppResources.Faculty + " " + this.name;
             }
+        }
+
+        /// <summary>
+        /// Gets or sets the id of the faculty.
+        /// </summary>
+        [XmlAttribute("id")]
+        public string Id
+        {
+            get
+            {
+                return this.name;
+            }
+
             set
             {
-                if (value != this.name)
+                this.name = value;
+            }
+        }
+
+        /// <summary>
+        /// Remove a chair model from the lost.
+        /// </summary>
+        /// <param name="chairName">name of the chair</param>
+        /// <returns>true, if succeeded</returns>
+        public bool RemoveChair(string chairName)
+        {
+            bool retValue = false;
+
+            ChairModel tempChair = null;
+
+            foreach (ChairModel temp in this.Chairs)
+            {
+                if (temp.Name.Equals(chairName) == true)
                 {
-                    this.name = value;
-                    NotifyPropertyChanged("faculty");
+                    tempChair = temp;
                 }
             }
+
+            if (tempChair != null)
+            {
+                retValue = this.Chairs.Remove(tempChair);
+                this.hasChanged = true;
+            }
+            
+            return retValue;
+        }
+
+        /// <summary>
+        /// Add a chair to the list, if it does not already exist.
+        /// </summary>
+        /// <param name="chairModel">chair model to add</param>
+        /// <returns>true, is succeeded</returns>
+        public bool AddChair(ChairModel chairModel)
+        {
+            bool retValue = false;
+
+            if ((chairModel != null)
+            && (this.Chairs.Contains(chairModel) == false))
+            {
+                bool isIn = false;
+
+                foreach (ChairModel temp in this.Chairs)
+                {
+                    if ((temp.NameDE.Equals(chairModel.NameDE) == true)
+                    || (temp.NameEN.Equals(chairModel.NameEN) == true))
+                    {
+                        isIn = true;
+                    }
+                }
+
+                if (isIn == false)
+                {
+                    this.Chairs.Add(chairModel);
+                    this.hasChanged = true;
+                    retValue = true;
+                }
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Create a chair model and add it to the list, if it does not already
+        /// exist.
+        /// </summary>
+        /// <param name="nameDE">german name of the chair</param>
+        /// <param name="nameEN">english name of the chair</param>
+        /// <param name="url">url of the chair home page</param>
+        /// <returns>true, if succeeded</returns>
+        public bool AddChair(string nameDE, string nameEN, string url)
+        {
+            bool retValue = false;
+
+            bool isIn = false;
+
+            foreach (ChairModel temp in this.Chairs)
+            {
+                if ((temp.NameDE.Equals(nameDE) == true)
+                || (temp.NameEN.Equals(nameEN) == true))
+                {
+                    isIn = true;
+                }
+            }
+
+            if (isIn == false)
+            {
+                ChairModel newModel = new ChairModel();
+                newModel.NameDE = nameDE;
+                newModel.NameEN = nameEN;
+                newModel.Url = url;
+
+                this.Chairs.Add(newModel);
+                this.hasChanged = true;
+                retValue = true;
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Return the chair model of the chair with the specified name.
+        /// </summary>
+        /// <param name="name">name of the chair</param>
+        /// <returns>chair model, if succeeded, otherwise null</returns>
+        public ChairModel GetChairModel(string name)
+        {
+            ChairModel retValue = null;
+
+            foreach (ChairModel temp in this.Chairs)
+            {
+                if (temp.Name.Equals(name) == true)
+                {
+                    retValue = temp;
+                }
+            }
+            
+            return retValue;
+        }
+
+        /// <summary>
+        /// Return true if there were changes in the chair list, otherwise false.
+        /// </summary>
+        /// <param name="reset">when true, the hasChanged flag will be reset</param>
+        /// <returns>true, when changed, otherwise false</returns>
+        public bool HasChanged(bool reset = true)
+        {
+            bool retValue = this.hasChanged;
+
+            if (reset == true)
+            {
+                this.hasChanged = false;
+            }
+
+            return retValue;
         }
     }
 }

CampusAppWP8/CampusAppWP8/Model/Events/RSSChannelModel.cs

@@ -37,6 +37,11 @@ namespace CampusAppWP8.Model.events_news
                 if (value != this.item)
                 {
                     this.item = value;
+                    int i = 0;
+                    foreach (RSSModel rssItem in this.item)
+                    {
+                        rssItem.Index = i++;
+                    }
                     NotifyPropertyChanged("item");
                 }
             }

CampusAppWP8/CampusAppWP8/Model/Events/RSSModel.cs

@@ -108,6 +108,11 @@ namespace CampusAppWP8.Model.events_news
             get { return String.Format("{0:h:mm} Uhr", this.timestamp); }
         }
 
+        /// <summary>
+        /// Gets or sets the ListIndex
+        /// </summary>
+        public int Index { get; set; }
+
         /// <summary>
         /// Set/Get the link/url of the feed.
         /// </summary>

CampusAppWP8/CampusAppWP8/Model/Events/RSSViewModel.cs

@@ -1,47 +0,0 @@
-using CampusAppWP8.Model;
-using System.Collections.ObjectModel;
-using System.Xml.Serialization;
-
-namespace CampusAppWP8.Model.events_news
-{
-    /// <summary>
-    /// ViewModel of the rss feed, containing the feed/channel object.
-    /// </summary>
-    [XmlRoot("root")]
-    public class RSSViewModel : BaseViewModel
-    {
-        /// <summary>
-        /// channel list for the rss feeds.
-        /// </summary>
-        [XmlArray("rss")]
-        [XmlArrayItem("channel")]
-        public ObservableCollection<RSSChannelModel> channel { get; set; }
-        
-        /// <summary>
-        /// Default constructor.
-        /// </summary>
-        public RSSViewModel()
-        {
-            this.channel = new ObservableCollection<RSSChannelModel>();
-        }
-
-        /// <summary>
-        /// Set/Get the channel list.
-        /// </summary>
-        public ObservableCollection<RSSChannelModel> Channel
-        {
-            get
-            {
-                return this.channel;
-            }
-            set
-            {
-                if (value != this.channel)
-                {
-                    this.channel = value;
-                    NotifyPropertyChanged("channel");
-                }
-            }
-        }
-    }
-}

CampusAppWP8/CampusAppWP8/Model/Lecture/LectureActivity.cs

@@ -1,26 +1,48 @@
-using CampusAppWP8.Utility;
-using System;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Xml.Serialization;
-
+//-----------------------------------------------------------------------
+// <copyright file="LectureActivity.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>13.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Lecture
 {
+    using System.Collections.ObjectModel;
+    using System.Xml.Serialization;
+    using CampusAppWP8.Utility;
+
+    /// <summary>
+    /// Model for a Activity
+    /// </summary>
     public class LectureActivity
     {
-        #region
+        #region Members
+
+        /// <summary>
+        /// List of lecturer
+        /// </summary>
         private ObservableCollection<LectureLecturer> lecturer;
+
+        /// <summary>
+        /// a formatted string for the names of the lecturers
+        /// </summary>
         private string lecturerString;
+
+        /// <summary>
+        /// a formatted string for the names of the courses
+        /// </summary>
         private string courseString;
+
+        /// <summary>
+        /// a formatted string for the topic of the lecture
+        /// </summary>
         private string topic;
+
         #endregion
         #region Constructor
 
         /// <summary>
-        /// Initializes a new instance of the <see cref="LectureList" /> class.
+        /// Initializes a new instance of the <see cref="LectureActivity" /> class.
         /// </summary>
         public LectureActivity()
         {
@@ -30,41 +52,72 @@ namespace CampusAppWP8.Model.Lecture
 
         #region Proberty
 
+        /// <summary>
+        /// Gets or sets the type of the activity
+        /// </summary>
         [XmlElement("art")]
         public string Type { get; set; }
 
+        /// <summary>
+        /// Gets or sets the id of the activity
+        /// </summary>
         [XmlAttribute("id")]
         public int Id { get; set; }
 
+        /// <summary>
+        /// Gets or sets semester of the activity
+        /// </summary>
         [XmlElement("semester")]
         public int Semester { get; set; }
 
+        /// <summary>
+        /// Gets or sets the contact hour
+        /// </summary>
         [XmlElement("sws")]
         public string SWS { get; set; }
 
+        /// <summary>
+        /// Gets or sets LectureModule
+        /// </summary>
         [XmlElement("modul")]
-        public LectureModul Modul { get; set; }
+        public LectureModule Modul { get; set; }
 
+        /// <summary>
+        /// Gets or sets LectureTitle
+        /// </summary>
+        [XmlElement("titel")]
+        public string Title { get; set; }
+
+        /// <summary>
+        /// Gets or sets the lecturers
+        /// </summary>
         [XmlElement("lehrperson")]
-        public ObservableCollection<LectureLecturer> Lecturer {
+        public ObservableCollection<LectureLecturer> Lecturer
+        {
             get
             {
-                return lecturer;
+                return this.lecturer;
             }
+
             set
             {
-                if (value != lecturer)
+                if (value != this.lecturer)
                 {
-                    lecturer = value;
+                    this.lecturer = value;
                 }
             }
         }
 
-        public string LecturerString {
+        /// <summary>
+        /// Gets or sets the formatted string of the lecturers
+        /// </summary>
+        public string LecturerString
+        {
             get
             {
                 return this.lecturerString;
             }
+
             set
             {
                 if (value != this.lecturerString)
@@ -74,12 +127,16 @@ namespace CampusAppWP8.Model.Lecture
             }
         }
 
+        /// <summary>
+        /// Gets or sets formatted string of the courses
+        /// </summary>
         public string CourseString
         {
             get
             {
                 return this.courseString;
             }
+
             set
             {
                 if (value != this.courseString)
@@ -88,53 +145,77 @@ namespace CampusAppWP8.Model.Lecture
                 }
             }
         }
-  
 
+        /// <summary>
+        /// Gets or sets the courses
+        /// </summary>
         [XmlElement("studiengang")]
         public ObservableCollection<LectureCourse> Course { get; set; }
 
+        /// <summary>
+        /// Gets or sets the dates of the activity
+        /// </summary>
         [XmlElement("termin")]
         public ObservableCollection<LectureDate> Dates { get; set; }
 
+        /// <summary>
+        /// Gets or sets the Department
+        /// </summary>
         [XmlElement("zugeordnete_einrichtung")]
         public string Department { get; set; }
 
+        /// <summary>
+        /// Gets or sets the topic of the Lecture
+        /// </summary>
         [XmlElement("lehrinhalt")]
         public string Topic
         {
             get
             {
-                return topic;
+                return this.topic;
             }
+
             set
             {
-                if (value != topic)
+                if (value != this.topic)
                 {
-                    topic = StringManager.StripHTML(value);
+                    this.topic = StringManager.StripHTML(value);
                 }
             }
         }
 
         #endregion
 
-        public void createLectureString()
+        #region Methods
+
+        /// <summary>
+        /// Method create a formatted string of the LecturerList
+        /// </summary>
+        public void CreateLectureString()
         {
             string result = string.Empty;
-            foreach (LectureLecturer tmpLecturer in Lecturer)
+            foreach (LectureLecturer tmpLecturer in this.Lecturer)
             {
-                result += tmpLecturer.ToString() + "\n";
+                result += StringManager.AddNewLine(tmpLecturer.ToString());
             }
-            this.LecturerString = result.TrimEnd('\n');
+
+            this.LecturerString = StringManager.RemvoveNewLine(result);
         }
 
-        public void createCourseString()
+        /// <summary>
+        /// Method create a formatted string of the CourseList
+        /// </summary>
+        public void CreateCourseString()
         {
             string result = string.Empty;
-            foreach (LectureCourse course in Course)
+            foreach (LectureCourse course in this.Course)
             {
-                result += course.Title + "\n";
+                result += StringManager.AddNewLine(course.Title);
             }
-            this.CourseString = result.TrimEnd('\n');
+
+            this.CourseString = StringManager.RemvoveNewLine(result);
         }
+
+        #endregion
     }
 }

CampusAppWP8/CampusAppWP8/Model/Lecture/LectureCourse.cs

@@ -1,17 +1,29 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Xml.Serialization;
-
+// <copyright file="LectureCourse.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>10.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Lecture
 {
-     public class LectureCourse
+    using System.Xml.Serialization;
+
+    /// <summary>
+    /// Model for a course
+    /// </summary>
+    public class LectureCourse
     {
-         public LectureCourse()
-         {
-         }
-         [XmlElement("bezeichnung")]
-         public string Title {get;set;}
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LectureCourse" /> class.
+        /// </summary>
+        public LectureCourse()
+        {
+        }
+
+        /// <summary>
+        /// Gets or sets the title of the course
+        /// </summary>
+        [XmlElement("bezeichnung")]
+        public string Title { get; set; }
     }
 }

CampusAppWP8/CampusAppWP8/Model/Lecture/LectureDate.cs

@@ -1,31 +1,66 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Xml.Serialization;
-
+//-----------------------------------------------------------------------
+// <copyright file="LectureDate.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>10.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Lecture
 {
+    using System.Xml.Serialization;
+
+    /// <summary>
+    /// Model for the date of an activity
+    /// </summary>
     public class LectureDate
     {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LectureDate" /> class.
+        /// </summary>
         public LectureDate()
         {
         }
 
+        /// <summary>
+        /// Gets or sets WeekDay
+        /// </summary>
         [XmlElement("wochentag")]
         public string WeekDay { get; set; }
+
+        /// <summary>
+        /// Gets or sets From
+        /// </summary>
         [XmlElement("von")]
         public string From { get; set; }
+
+        /// <summary>
+        /// Gets or sets To
+        /// </summary>
         [XmlElement("bis")]
         public string To { get; set; }
+
+        /// <summary>
+        /// Gets or sets Interval
+        /// </summary>
         [XmlElement("rhythmus")]
         public string Interval { get; set; }
+
+        /// <summary>
+        /// Gets or sets Room
+        /// </summary>
         [XmlElement("raum")]
         public string Room { get; set; }
+
+        /// <summary>
+        /// Gets or sets StartDate
+        /// </summary>
         [XmlElement("anfangsdatum")]
-        public string StarDate { get; set; }
+        public string StartDate { get; set; }
+
+        /// <summary>
+        /// Gets or sets EndDate
+        /// </summary>
         [XmlElement("enddatum")]
         public string EndDate { get; set; }
-
     }
 }

CampusAppWP8/CampusAppWP8/Model/Lecture/LectureLecturer.cs

@@ -1,45 +1,71 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Xml.Serialization;
-
+//-----------------------------------------------------------------------
+// <copyright file="LectureLecturer.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>10.06.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Lecture
 {
+    using System.Xml.Serialization;
+
+    /// <summary>
+    /// Model for a lecturer
+    /// </summary>
     public class LectureLecturer
     {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LectureLecturer" /> class.
+        /// </summary>
         public LectureLecturer()
         {
         }
 
+        /// <summary>
+        /// Gets or sets the FirstName of a lecturer
+        /// </summary>
         [XmlElement("vorname")]
         public string FirstName { get; set; }
 
+        /// <summary>
+        /// Gets or sets the LastName of a lecturer
+        /// </summary>
         [XmlElement("name")]
         public string LastName { get; set; }
 
+        /// <summary>
+        /// Gets or sets the title of a lecturer
+        /// </summary>
         [XmlElement("titel")]
         public string Title { get; set; }
 
+        /// <summary>
+        /// Gets or sets the Responsibility of a lecturer
+        /// </summary>
         [XmlAttribute("zustaendigkeit")]
         public string Responsibility { get; set; }
 
+        /// <summary>
+        /// Method overrides the base ToString() and create an formatted string of the lecturer
+        /// </summary>
+        /// <returns>returns a string like: [Title] FirstName LastName [(Responsibility)]</returns>
         public override string ToString()
         {
             string result = string.Empty;
-            
-            if (!Title.Equals(string.Empty))
+
+            if (!this.Title.Equals(string.Empty))
             {
-                result += Title + " ";
+                result += this.Title + " ";
             }
 
-            result += FirstName + " ";
-            result += LastName + " ";
+            result += this.FirstName + " ";
+            result += this.LastName + " ";
 
-            if (!Responsibility.Equals(string.Empty))
+            if (!this.Responsibility.Equals(string.Empty))
             {
-                result += "(" + Responsibility + ") ";
+                result += "(" + this.Responsibility + ") ";
             }
+
             return result;
         }
     }

CampusAppWP8/CampusAppWP8/Model/Lecture/LectureList.cs

@@ -7,15 +7,16 @@
 //----------------------------------------------------------------------
 namespace CampusAppWP8.Model.Lecture
 {
-    using System.Collections.Generic;
     using System.Collections.ObjectModel;
-    using System.Xml.Serialization;
     using System.Linq;
+    using System.Xml.Serialization;
 
+    /// <summary>
+    /// Model for a List of LectureActivity
+    /// </summary>
     [XmlRoot("lsf_auszug")]
     public class LectureList
     {
-
         #region Constructor
 
         /// <summary>
@@ -29,6 +30,9 @@ namespace CampusAppWP8.Model.Lecture
 
         #region Proberty
 
+        /// <summary>
+        ///  Gets or sets List of the activities
+        /// </summary>
         [XmlArray("veranstaltungsliste")]
         [XmlArrayItem("veranstaltung")]
         public ObservableCollection<LectureActivity> Activities { get; set; }
@@ -37,12 +41,17 @@ namespace CampusAppWP8.Model.Lecture
 
         #region Methods
 
+        /// <summary>
+        /// Method return a certain activity
+        /// </summary>
+        /// <param name="id"> id of the  activity</param>
+        /// <returns> the activity (FirstOrDefault)</returns>
         public LectureActivity GetActivity(int id)
         {
-            LectureActivity activity = Activities.Where(p => p.Id == id).First();
+            LectureActivity activity = this.Activities.Where(p => p.Id == id).FirstOrDefault();
             return activity;
         }
-        #endregion
 
+        #endregion
     }
 }

CampusAppWP8/CampusAppWP8/Model/Lecture/LectureModul.cs

@@ -1,70 +0,0 @@
-//-----------------------------------------------------------------------
-// <copyright file="LectureModul.cs" company="BTU/IIT">
-//     Company copyright tag.
-// </copyright>
-// <author>stubbfel</author>
-// <sience>10.06.2013</sience>
-//----------------------------------------------------------------------
-namespace CampusAppWP8.Model.Lecture
-{
-    using CampusAppWP8.Resources;
-    using System;
-    using System.Xml.Serialization;
-    public class LectureModul
-    {
-        #region Members
-
-        private int number;
-
-        private Uri url;
-
-        #endregion
-
-        #region Constructor
-
-        public LectureModul()
-        {
-        }
-
-        #endregion
-
-        #region Property
-        
-        [XmlElement("titel")]
-        public string Title {get; set;}
-
-        [XmlElement("nummer")]
-        public int Number{
-            get
-            {
-                return this.number;
-            }
-            set
-            {
-                if (value != this.number)
-                {
-                    this.number = value;
-                    this.createUrl();
-                }
-            }
-        }
-
-        public Uri Url{
-            get
-            {
-                return url;
-            }
-        }
-
-        #endregion
-
-        #region Methods
-
-        private void createUrl()
-        {
-            this.url = new Uri(Constants.UrlLectureModulBaseAddr + number.ToString());
-        }
-
-        #endregion
-    }
-}

CampusAppWP8/CampusAppWP8/Model/Lecture/LectureModule.cs

@@ -0,0 +1,98 @@
+//-----------------------------------------------------------------------
+// <copyright file="LectureModule.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>10.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Model.Lecture
+{
+    using System;
+    using System.Xml.Serialization;
+    using CampusAppWP8.Resources;
+
+    /// <summary>
+    /// Model for the module of an lecture
+    /// </summary>
+    public class LectureModule
+    {
+        #region Members
+
+        /// <summary>
+        /// Number of the module (like an id)
+        /// </summary>
+        private int number;
+
+        /// <summary>
+        /// Url to the website of the module
+        /// </summary>
+        private Uri url;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LectureModule" /> class.
+        /// </summary>
+        public LectureModule()
+        {
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets or sets the title of the module
+        /// </summary>
+        [XmlElement("titel")]
+        public string Title { get; set; }
+
+        /// <summary>
+        /// Gets or sets the number of the module and create the URL
+        /// </summary>
+        [XmlElement("nummer")]
+        public int Number
+        {
+            get
+            {
+                return this.number;
+            }
+
+            set
+            {
+                if (value != this.number)
+                {
+                    this.number = value;
+                    this.CreateUrl();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the URL of the module 
+        /// </summary>
+        public Uri Url
+        {
+            get
+            {
+                return this.url;
+            }
+        }
+
+        #endregion
+
+        #region Methods
+
+        /// <summary>
+        /// Method create the url of the module
+        /// </summary>
+        private void CreateUrl()
+        {
+            this.url = new Uri(Constants.UrlLecture_ModulBaseAddr + this.number.ToString());
+        }
+
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/Model/Lecture/LecturePageModel.cs

@@ -0,0 +1,326 @@
+//-----------------------------------------------------------------------
+// <copyright file="LecturePageModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>18.06.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Model.Lecture
+{
+    using System.Runtime.Serialization;
+    using CampusAppWP8.Model.Setting;
+    using CampusAppWP8.Model.Utility;
+
+    /// <summary>
+    /// Model for the LecturePage
+    /// </summary>
+    [DataContract]
+    public class LecturePageModel
+    {
+        #region Members
+
+        /// <summary>
+        /// Variable for the courseIndex
+        /// </summary>
+        [DataMember]
+        public int selectCourseIndex;
+
+        /// <summary>
+        /// Variable for the degreeIndex
+        /// </summary>
+        [DataMember]
+        public int selectDegreeIndex;
+
+        /// <summary>
+        /// Variable for the semesterIndex
+        /// </summary>
+        [DataMember]
+        public int selectSemesterIndex;
+
+        /// <summary>
+        /// Variable for the fromIndex
+        /// </summary>
+        [DataMember]
+        public int selectFromIndex;
+
+        /// <summary>
+        /// Variable for the toIndex
+        /// </summary>
+        [DataMember]
+        public int selectToIndex;
+
+        /// <summary>
+        /// List for the courses of the BTU
+        /// </summary>
+        /// <remarks>
+        /// need to be extend to full list
+        /// </remarks>
+        private ListPickerItemListModel courseList;
+
+        /// <summary>
+        /// List of the degrees
+        /// </summary>
+        private ListPickerItemListModel degreeList;
+
+        /// <summary>
+        /// List of the semester
+        /// </summary>
+        private ListPickerItemListModel semesterList;
+
+        /// <summary>
+        /// List for the number of semester (from)
+        /// </summary>
+        private ListPickerItemListModel fromNumberList;
+
+        /// <summary>
+        /// List for the number of semester (to)
+        /// </summary>
+        private ListPickerItemListModel toNumberList;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LecturePageModel" /> class.
+        /// </summary>
+        public LecturePageModel()
+        {
+            this.courseList = new CourseListPickerItemListModel();
+            this.degreeList = new DegreeListPickerItemListModel();
+            this.semesterList = new SemesterListPickerItemListModel();
+        }
+        #endregion
+
+        #region Proberty
+
+        /// <summary>
+        /// Gets or sets the selected course index
+        /// </summary>
+        public int SelectCourseIndex
+        {
+            get
+            {
+                return this.selectCourseIndex;
+            }
+
+            set
+            {
+                if (value != this.selectCourseIndex && this.courseList != null && value < this.courseList.List.Count)
+                {
+                    this.selectCourseIndex = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the selected degree index
+        /// </summary>
+        public int SelectDegreeIndex
+        {
+            get
+            {
+                return this.selectDegreeIndex;
+            }
+
+            set
+            {
+                if (value != this.selectDegreeIndex && this.degreeList != null && value < this.degreeList.List.Count)
+                {
+                    this.selectDegreeIndex = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the selected semester-index
+        /// </summary>
+        public int SelectSemesterIndex
+        {
+            get
+            {
+                return this.selectSemesterIndex;
+            }
+
+            set
+            {
+                if (value != this.selectSemesterIndex && this.semesterList != null && value < this.semesterList.List.Count)
+                {
+                    this.selectSemesterIndex = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the selected from-index
+        /// </summary>
+        public int SelectFromIndex
+        {
+            get
+            {
+                return this.selectFromIndex;
+            }
+
+            set
+            {
+                if (value != this.selectFromIndex && this.fromNumberList != null && value < this.fromNumberList.List.Count)
+                {
+                    this.selectFromIndex = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the selected to-index
+        /// </summary>
+        public int SelectToIndex
+        {
+            get
+            {
+                return this.selectToIndex;
+            }
+
+            set
+            {
+                if (value != this.selectToIndex && this.toNumberList != null && value < this.toNumberList.List.Count)
+                {
+                    this.selectToIndex = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets List for the courses of the BTU
+        /// </summary>
+        public ListPickerItemListModel CourseList
+        {
+            get
+            {
+                return this.courseList;
+            }
+        }
+
+        /// <summary>
+        /// Gets List of the degrees
+        /// </summary>
+        public ListPickerItemListModel DegreeList
+        {
+            get
+            {
+                return this.degreeList;
+            }
+        }
+
+        /// <summary>
+        /// Gets List of the semester
+        /// </summary>
+        public ListPickerItemListModel SemesterList
+        {
+            get
+            {
+                return this.semesterList;
+            }
+        }
+
+        /// <summary>
+        /// Gets List for the number of semester
+        /// </summary>
+        public ListPickerItemListModel FromNumberList
+        {
+            get
+            {
+                return this.fromNumberList;
+            }
+        }
+
+        /// <summary>
+        /// Gets the NumberList
+        /// </summary>
+        public ListPickerItemListModel ToNumberList
+        {
+            get
+            {
+                return this.toNumberList;
+            }
+        }
+        #endregion
+
+        #region Methods
+
+        #region public
+
+        /// <summary>
+        /// Load all ListPickerLists
+        /// </summary>
+        public void LoadLists()
+        {
+            this.LoadFromNumberList();
+            this.LoadToNumberList();
+            UserProfilModel userModel = Settings.UserProfil.Model;
+            this.selectCourseIndex = this.courseList.GetIndexOrDefault(((int)userModel.Course).ToString().PadLeft(3, '0'));
+            this.selectDegreeIndex = this.degreeList.GetIndexOrDefault(((int)userModel.Degree).ToString());
+            this.selectSemesterIndex = this.semesterList.GetIndexOrDefault(((int)userModel.Semester).ToString());
+        }
+
+        #endregion
+
+        #region private
+
+        /// <summary>
+        /// Load the NumberList
+        /// </summary>
+        public void LoadFromNumberList()
+        {
+            string selectValue = null;
+            if (this.fromNumberList != null && this.fromNumberList.List.Count > 0)
+            {
+                selectValue = this.fromNumberList.List[this.SelectFromIndex].Value;
+            }
+
+            this.fromNumberList = this.CreateNumberList(1, 10);
+            this.SelectFromIndex = this.fromNumberList.GetIndexOrDefault(selectValue);
+        }
+
+        /// <summary>
+        /// Load the NumberList
+        /// </summary>
+        public void LoadToNumberList()
+        {
+            string selectValue = null;
+            if (this.toNumberList != null && this.toNumberList.List.Count > 0)
+            {
+                selectValue = this.toNumberList.List[this.SelectToIndex].Value;
+            }
+
+            this.toNumberList = this.CreateNumberList(this.SelectFromIndex + 1, 10);
+            this.SelectToIndex = this.toNumberList.GetIndexOrDefault(selectValue);
+        }
+
+        /// <summary>
+        /// Method create a NumberList
+        /// </summary>
+        /// <param name="startvalue">startValue of the list</param>
+        /// <param name="endvalue">endValue of the list</param>
+        /// <returns>return list</returns>
+        private ListPickerItemListModel CreateNumberList(int startvalue, int endvalue)
+        {
+            ListPickerItemListModel list = new ListPickerItemListModel();
+            string degree = this.DegreeList.List[this.SelectDegreeIndex].Value;
+
+            for (int i = startvalue; i <= endvalue; i++)
+            {
+                if ((i > 4 && "88".Equals(degree)) || (i > 6 && "82".Equals(degree)))
+                {
+                    break;
+                }
+
+                list.AddItem(i.ToString(), i.ToString());
+            }
+
+            return list;
+        }
+        #endregion
+
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/Model/Link/LinkListModel.cs

@@ -0,0 +1,64 @@
+//-----------------------------------------------------------------------------
+// <copyright file="LinkListModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>02.07.2013</sience>
+//-----------------------------------------------------------------------------
+
+namespace CampusAppWP8.Model.Link
+{
+    using System;
+    using System.Collections.ObjectModel;
+    using System.Xml.Serialization;
+
+    /// <summary>
+    /// Model for a list of links.
+    /// </summary>
+    [XmlRoot("root")]
+    public class LinkListModel
+    {
+        #region Member
+
+        /// <summary>
+        /// Time when the model was created.
+        /// </summary>
+        private readonly DateTime createTime;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LinkListModel" /> class.
+        /// </summary>
+        public LinkListModel()
+        {
+            this.createTime = DateTime.Now;
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets or sets feed information item list.
+        /// </summary>
+        [XmlArray("data")]
+        [XmlArrayItem("link")]
+        public ObservableCollection<LinkModel> Links { get; set; }
+
+        /// <summary>
+        /// Gets the creation time of the model.
+        /// </summary>
+        public DateTime CreateTime
+        {
+            get
+            {
+                return this.createTime;
+            }
+        }
+
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/Model/Link/LinkModel.cs

@@ -0,0 +1,173 @@
+//-----------------------------------------------------------------------------
+// <copyright file="LinkModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>02.07.2013</sience>
+//-----------------------------------------------------------------------------
+
+namespace CampusAppWP8.Model.Link
+{
+    using System.Globalization;
+    using System.Xml.Serialization;
+    
+    /// <summary>
+    ///  Model for menu
+    /// </summary>
+    public class LinkModel
+    {
+        #region Member
+        
+        /// <summary>
+        /// German version of the link title.
+        /// </summary>
+        private string titleDE;
+
+        /// <summary>
+        /// English version of the link title.
+        /// </summary>
+        private string titleEN;
+
+        /// <summary>
+        /// German version of the link.
+        /// </summary>
+        private string linkDE;
+
+        /// <summary>
+        /// English version of the link.
+        /// </summary>
+        private string linkEN;
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="LinkModel" /> class.
+        /// </summary>
+        public LinkModel()
+        {
+        }
+
+        #endregion
+
+        #region Property
+
+        /// <summary>
+        /// Gets or sets the german title of the link.
+        /// </summary>
+        [XmlAttribute("title_de")]
+        public string Title_DE
+        {
+            get
+            {
+                return this.titleDE;
+            }
+
+            set
+            {
+                if (value != this.titleDE)
+                {
+                    this.titleDE = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the english title of the link.
+        /// </summary>
+        [XmlAttribute("title_en")]
+        public string Title_EN
+        {
+            get
+            {
+                return this.titleEN;
+            }
+
+            set
+            {
+                this.titleEN = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the german link.
+        /// </summary>
+        [XmlAttribute("link_de")]
+        public string Link_DE
+        {
+            get
+            {
+                return this.linkDE;
+            }
+
+            set
+            {
+                if (value != this.linkDE)
+                {
+                    this.linkDE = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the english link.
+        /// </summary>
+        [XmlAttribute("link_en")]
+        public string Link_EN
+        {
+            get
+            {
+                return this.linkEN;
+            }
+
+            set
+            {
+                if (value != this.linkEN)
+                {
+                    this.linkEN = value;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the localized title. If the phone is set to german language,
+        /// the german title will be returned otherwise the english title.
+        /// </summary>
+        public string Title
+        {
+            get
+            {
+                if (CultureInfo.CurrentUICulture.Name.StartsWith("de"))
+                {
+                    return this.titleDE;
+                }
+                else
+                {
+                    return this.titleEN;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the localized link. if the phone is set to german language,
+        /// the german comment will be returned otherwise the english link.
+        /// </summary>
+        public string Link
+        {
+            get
+            {
+                if (CultureInfo.CurrentUICulture.Name.StartsWith("de"))
+                {
+                    return this.Link_DE;
+                }
+                else
+                {
+                    return this.Link_EN;
+                }
+            }
+        }
+
+        #endregion
+    }
+}

CampusAppWP8/CampusAppWP8/Model/MainModel.cs

@@ -0,0 +1,504 @@
+//-----------------------------------------------------------------------------
+// <copyright file="MainModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>fiedlchr</author>
+// <sience>05.07.2013</sience>
+//-----------------------------------------------------------------------------
+namespace CampusAppWP8
+{
+    using System;
+    using System.Collections.Generic;
+    using System.IO;
+    using System.Net;
+    using System.Text;
+    using CampusAppWP8.Model.Utility;
+    using CampusAppWP8.Utility;
+    
+    /// <summary>
+    /// Base model io handling class.
+    /// </summary>
+    /// <typeparam name="T">model type</typeparam>
+    public abstract class MainModel<T> : IDisposable
+    {
+        /// <summary>
+        /// Model io type.
+        /// </summary>
+        private ModelType modelType;
+
+        /// <summary>
+        /// Model object.
+        /// </summary>
+        private T model = default(T);
+
+        /// <summary>
+        /// File object.
+        /// </summary>
+        private CampusAppWP8.Utility.File file = null;
+
+        /// <summary>
+        /// Web object.
+        /// </summary>
+        private HttpRequest api = null;
+
+        /// <summary>
+        /// Filename of saved data.
+        /// </summary>
+        private string fileName = string.Empty;
+
+        /// <summary>
+        /// Url of the feed data.
+        /// </summary>
+        private Uri httpApiUri = null;
+
+        /// <summary>
+        /// Parameterized uri of the feed.
+        /// </summary>
+        private Uri paramizedUri = null;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MainModel{T}" /> class.
+        /// </summary>
+        /// <param name="modelType">Model IO type</param>
+        /// <param name="fileName">name of the file</param>
+        /// <param name="url">url of the feed</param>
+        public MainModel(ModelType modelType, string fileName, string url)
+        {
+            this.Init(modelType, fileName, url);
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="MainModel{T}" /> class.
+        /// </summary>
+        /// <param name="modelType">Model IO type</param>
+        /// <param name="sourceName">name of the file or the url of the feed</param>
+        public MainModel(ModelType modelType, string sourceName)
+        {
+            if (modelType == ModelType.File)
+            {
+                this.Init(modelType, sourceName, string.Empty);
+            }
+            else if (modelType == ModelType.Feed)
+            {
+                this.Init(modelType, string.Empty, sourceName);
+            }
+            else
+            {
+                throw new NotSupportedException("Wrong constructor was called for Feed and File support.");
+            }
+        }
+
+        /// <summary>
+        /// Finalizes an instance of the <see cref="MainModel{T}" /> class.
+        /// </summary>
+        ~MainModel()
+        {
+            this.SaveData();
+        }
+
+        /// <summary>
+        /// Delegate of the OnLoading callback function.
+        /// </summary>
+        public delegate void OnLoading();
+
+        /// <summary>
+        /// Delegate of the OnLoaded callback function.
+        /// </summary>
+        public delegate void OnLoaded();
+
+        /// <summary>
+        /// Delegate of the OnSaving callback function.
+        /// </summary>
+        public delegate void OnSaving();
+
+        /// <summary>
+        /// Delegate of the OnSaved callback function.
+        /// </summary>
+        public delegate void OnSaved();
+
+        /// <summary>
+        /// Delegate of the IsModelUpToDate callback function.
+        /// </summary>
+        /// <param name="model">data model</param>
+        /// <returns>true, model is up to date</returns>
+        public delegate bool IsModelUpToDate(T model);
+
+        /// <summary>
+        /// Delegate of the IsFileUpToDate callback function.
+        /// </summary>
+        /// <param name="model">data model</param>
+        /// <param name="fileInfo">info of the file</param>
+        /// <returns>true, is file is up to date</returns>
+        public delegate bool IsFileUpToDate(T model, FileInfo fileInfo);
+
+        /// <summary>
+        /// Callback pointer, called before loading.
+        /// </summary>
+        public event OnLoading onLoading = null;
+
+        /// <summary>
+        /// Callback pointer, called after loading.
+        /// </summary>
+        public event OnLoaded onLoaded = null;
+
+        /// <summary>
+        /// Callback pointer, called before saving.
+        /// </summary>
+        public event OnSaving onSaving = null;
+
+        /// <summary>
+        /// Callback pointer, called after saving.
+        /// </summary>
+        public event OnSaved onSaved = null;
+
+        /// <summary>
+        /// Callback pointer, for checking if file is up to date at loading.
+        /// </summary>
+        public event IsFileUpToDate isFileUpToDateOnLoad = null;
+
+        /// <summary>
+        /// Callback pointer, for checking if file is up to date at saving.
+        /// </summary>
+        public event IsFileUpToDate isFileUpToDateOnSave = null;
+
+        /// <summary>
+        /// Callback pointer, for checking if model is up to date at loading.
+        /// </summary>
+        public event IsModelUpToDate isModelUpToDateOnLoad = null;
+
+        /// <summary>
+        /// Callback pointer, for checking if model is up to date at saving.
+        /// (currently unused)
+        /// </summary>
+        public event IsModelUpToDate isModelUpToDateOnSave = null;
+
+        /// <summary>
+        /// Specifies the I/O type of the model.
+        /// </summary>
+        public enum ModelType
+        {
+            /// <summary>
+            /// Invalid/unset state.
+            /// </summary>
+            INVALID = 0,
+
+            /// <summary>
+            /// File only (01).
+            /// </summary>
+            File = 1,
+
+            /// <summary>
+            /// Feed only (10).
+            /// </summary>
+            Feed = 2,
+
+            /// <summary>
+            /// File and feed (11).
+            /// </summary>
+            FileAndFeed = 3
+        }
+
+        /// <summary>
+        /// Gets or sets the Model.
+        /// </summary>
+        public T Model
+        {
+            get
+            {
+                return this.model;
+            }
+
+            set
+            {
+                this.model = value;
+            }
+        }
+
+        /// <summary>
+        /// Called before finalizing. Can maybe be removed.
+        /// </summary>
+        public void Dispose()
+        {
+            this.SaveData();
+        }
+
+        /// <summary>
+        /// Forces a update from web.
+        /// </summary>
+        public void ForceWebUpdate()
+        {
+            if (this.api != null)
+            {
+                if (this.onLoading != null)
+                {
+                    this.onLoading();
+                }
+
+                this.api.HttpGet(this.httpApiUri, this.OnLoadDataComplete);
+            }
+        }
+
+        /// <summary>
+        /// Load the data if necessary, from web or from file, regarding if
+        /// the file data is up to date.
+        /// </summary>
+        public void LoadData()
+        {
+            bool loadFromFile = true;
+
+            if (this.onLoading != null)
+            {
+                this.onLoading();
+            }
+
+            if (((this.isModelUpToDateOnLoad == null)
+            || (this.isModelUpToDateOnLoad(this.model) == false))
+            && ((this.file != null) || this.api != null))
+            {
+                if (this.file != null)
+                {
+                    if ((this.file.Exist() == false)
+                    || (this.file.GetFileInfo().Length == 0))
+                    {
+                        loadFromFile = false;
+                    }
+
+                    if (((this.isFileUpToDateOnLoad != null) && (this.isFileUpToDateOnLoad(this.model, this.file.GetFileInfo()) == false))
+                    || (this.isFileUpToDateOnLoad == null))
+                    {
+                        loadFromFile = false;
+                    }
+                }
+                else
+                {
+                    loadFromFile = false;
+                }
+
+                if (this.api == null)
+                {
+                    loadFromFile = true;
+                }
+
+                if (loadFromFile == false)
+                {
+                    if (this.paramizedUri != null)
+                    {
+                        this.api.HttpGet(this.paramizedUri, this.OnLoadDataComplete);
+                    }
+                    else
+                    {
+                        this.api.HttpGet(this.httpApiUri, this.OnLoadDataComplete);
+                    }
+                }
+                else
+                {
+                    string data = this.file.ReadFile();
+
+                    if (data != null && !data.Equals(string.Empty))
+                    {
+                        this.DeserializeModel(Encoding.UTF8.GetBytes(data));
+                    }
+                }
+            }
+
+            if (loadFromFile == true)
+            {
+                if (this.onLoaded != null)
+                {
+                    this.onLoaded();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Save the model data if necessary.
+        /// </summary>
+        /// <param name="force">force saving. DEFAULT: false</param>
+        public void SaveData(bool force = false)
+        {
+            if ((this.file != null)
+            && ((this.isFileUpToDateOnSave == null) 
+                || (this.isFileUpToDateOnSave(this.model, this.file.GetFileInfo()) == false) 
+                || (force == true)))
+            {
+                if (this.onSaving != null)
+                {
+                    this.onSaving();
+                }
+
+                byte[] data = this.SerializeModel();
+                string test = Encoding.UTF8.GetString(data, 0, data.Length);
+                this.file.WriteFile(data);
+
+                if (this.onSaved != null)
+                {
+                    this.onSaved();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Return the model io type.
+        /// </summary>
+        /// <returns>model io type</returns>
+        public ModelType GetModelType()
+        {
+            return this.modelType;
+        }
+
+        /// <summary>
+        /// Return the model.
+        /// </summary>
+        /// <returns>model object</returns>
+        public T GetModel()
+        {
+            return this.model;
+        }
+
+        /// <summary>
+        /// Create the parameterized uri.
+        /// </summary>
+        /// <param name="parameters">uri parameter list</param>
+        public void SetUriParams(List<UrlParamModel> parameters)
+        {
+            if (this.api != null)
+            {
+                this.paramizedUri = this.api.CreateGetUrl(parameters);
+            }
+        }
+
+        /// <summary>
+        /// Clear the parameterized uri.
+        /// </summary>
+        public void ClearUriParams()
+        {
+            this.paramizedUri = null;
+        }
+
+        /// <summary>
+        /// Abstract declaration of the model deserialize function.
+        /// </summary>
+        /// <param name="modelData">model data as byte array</param>
+        /// <returns>true, is succeeded</returns>
+        protected abstract bool DeserializeModel(byte[] modelData);
+
+        /// <summary>
+        /// Abstract declaration of the model serialize function. 
+        /// </summary>
+        /// <returns>model data as byte array</returns>
+        protected abstract byte[] SerializeModel();
+
+        /// <summary>
+        /// Check if the model io type is file.
+        /// </summary>
+        /// <returns>true, if the model io type has file.</returns>
+        protected bool IsFile()
+        {
+            bool retValue = false;
+
+            if ((this.modelType & ModelType.File) != 0)
+            {
+                retValue = true;
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Check if the model io type is feed.
+        /// </summary>
+        /// <returns>true if the model io type has feed.</returns>
+        protected bool IsHttpApi()
+        {
+            bool retValue = false;
+
+            if ((this.modelType & ModelType.Feed) != 0)
+            {
+                retValue = true;
+            }
+
+            return retValue;
+        }
+
+        /// <summary>
+        /// Initialize the class. Is called by the constructors.
+        /// </summary>
+        /// <param name="modelType">model IO type</param>
+        /// <param name="fileName">name of the data file</param>
+        /// <param name="url">url of the feed data</param>
+        private void Init(ModelType modelType, string fileName, string url)
+        {
+            this.modelType = modelType;
+
+            if ((url != null) && (url.Equals(string.Empty) == false))
+            {
+                this.httpApiUri = new Uri(url, UriKind.Absolute);
+            }
+
+            this.fileName = fileName;
+
+            if ((this.IsFile() == true)
+                && (fileName.Equals(string.Empty) == false))
+            {
+                this.InitFile(CampusAppWP8.Utility.File.IOTypeRead.ReadSync, CampusAppWP8.Utility.File.IOTypeWrite.WriteAsync);
+            }
+
+            if ((this.IsHttpApi() == true)
+            && (url.Equals(string.Empty) == false))
+            {
+                this.InitHttpApi();
+            }
+        }
+
+        /// <summary>
+        /// Initializes the file object.
+        /// </summary>
+        /// <param name="readType">read io type (Default: sync)</param>
+        /// <param name="writeType">write io type (Default: async)</param>
+        private void InitFile(CampusAppWP8.Utility.File.IOTypeRead readType = CampusAppWP8.Utility.File.IOTypeRead.ReadSync, CampusAppWP8.Utility.File.IOTypeWrite writeType = CampusAppWP8.Utility.File.IOTypeWrite.WriteAsync)
+        {
+            if ((this.IsFile() == true)
+            && (this.file == null))
+            {
+                this.file = new CampusAppWP8.Utility.File(this.fileName, readType, writeType);
+            }
+        }
+
+        /// <summary>
+        /// Initializes the web object.
+        /// </summary>
+        private void InitHttpApi()
+        {
+            if ((this.IsHttpApi() == true)
+            && (this.api == null))
+            {
+                this.api = new HttpRequest(this.httpApiUri);
+            }
+        }
+
+        /// <summary>
+        /// Is called after the loading from web is complete.
+        /// </summary>
+        /// <param name="sender">sending object</param>
+        /// <param name="e">event args</param>
+        private void OnLoadDataComplete(object sender, DownloadStringCompletedEventArgs e)
+        {
+            Exception downloadError = e.Error;
+            if (downloadError != null)
+            {
+                return;
+            }
+
+            string downloadResult = e.Result;
+            if (downloadResult != null && !downloadResult.Equals(string.Empty))
+            {
+                this.DeserializeModel(Encoding.UTF8.GetBytes(downloadResult));
+            }
+
+            if (this.onLoaded != null)
+            {
+                this.onLoaded();
+            }
+        }
+    }
+}

CampusAppWP8/CampusAppWP8/Model/Mensa/MealModel.cs

@@ -0,0 +1,268 @@
+//-----------------------------------------------------------------------
+// <copyright file="MealModel.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>06.08.2013</sience>
+//----------------------------------------------------------------------
+namespace CampusAppWP8.Model.Mensa
+{
+    using System.Xml.Serialization;
+    using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
+    
+    /// <summary>
+    /// Model for a meal
+    /// </summary>
+    public class MealModel
+    {
+        #region Members
+
+        /// <summary>
+        /// Constant for the vegetarian icon
+        /// </summary>
+        private const string MealIconNameVegetarian = "CARROTTE";
+
+        /// <summary>
+        /// Constant for the free icon
+        /// </summary>
+        private const string MealIconNameFree = "FREI";
+
+        /// <summary>
+        /// Constant for the pig icon
+        /// </summary>
+        private const string MealIconNamePig = "SCHWEIN";
+
+        /// <summary>
+        /// Constant for the cow icon
+        /// </summary>
+        private const string MealIconNameCow = "RIND";
+
+        /// <summary>
+        /// Constant for the fowl icon
+        /// </summary>
+        private const string MealIconNameFowl = "GEFL";
+
+        /// <summary>
+        /// Constant for the cow-pig icon
+        /// </summary>
+        private const string MealIconNameCowPig = "RINDSCHWEIN";
+
+        /// <summary>
+        /// Constant for the fish icon
+        /// </summary>
+        private const string MealIconNameFish = "FISCH";
+
+        /// <summary>
+        /// Constant for the wild icon
+        /// </summary>
+        private const string MealIconNameWild = "WILD";
+
+        /// <summary>
+        /// Constant for the lamb icon
+        /// </summary>
+        private const string MealIconNameLamb = "LAMM";
+
+        /// <summary>
+        /// Variable for the id of the meal
+        /// </summary>
+        /// <remarks>
+        /// ValueRange : 0 - 7
+        /// </remarks>
+        private int mealId;
+
+        /// <summary>
+        /// Name of the meal
+        /// </summary>
+        private string mealName;
+
+        /// <summary>
+        /// Name of the icon
+        /// </summary>
+        private string iconName;
+
+        /// <summary>
+        /// Url of the icon
+        /// </summary>
+        private string iconUrl;
+
+        /// <summary>
+        /// Description of the meal
+        /// </summary>
+        private string mealDesc;
+
+        #endregion
+
+        #region Proberty
+
+        /// <summary>
+        /// Gets or sets the mealId
+        /// </summary>
+        /// <remarks>
+        /// ValueRange : 0 - 7
+        /// </remarks>
+        [XmlAttribute("id")]
+        public int MealId
+        {
+            get
+            {
+                return this.mealId;
+            }
+
+            set
+            {
+                if (value > -1 && value < 8)
+                {
+                    this.mealId = value;
+                    this.CreateMealName();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the mealName
+        /// </summary>
+        public string MealName
+        {
+            get
+            {
+                return this.mealName;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the iconName
+        /// </summary>
+        [XmlAttribute("icon")]
+        public string IconName
+        {
+            get
+            {
+                return this.iconName;
+            }
+
+            set
+            {
+                if (value != this.iconName)
+                {
+                    this.iconName = value;
+                    this.CreateIconUrl();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the iconUrl
+        /// </summary>
+        public string IconUrl
+        {
+            get
+            {
+                return this.iconUrl;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the mealDescription
+        /// </summary>
+        [XmlAttribute("desc")]
+        public string MealDesc
+        {
+            get
+            {
+                return this.mealDesc;
+            }
+
+            set
+            {
+                if (value != this.mealDesc)
+                {
+                    this.mealDesc = StringManager.StripHTML(value);
+                }
+            }
+        }
+
+        #endregion
+
+        #region Methods
+
+        /// <summary>
+        /// Method create depends of the mealId the mealName
+        /// </summary>
+        private void CreateMealName()
+        {
+            switch (this.mealId)
+            {
+                case 0:
+                    this.mealName = AppResources.MensaApp_Soup;
+                    break;
+                case 1:
+                    this.mealName = AppResources.MensaApp_Dinner1;
+                    break;
+                case 2:
+                    this.mealName = AppResources.MensaApp_Dinner2;
+                    break;
+                case 3:
+                    this.mealName = AppResources.MensaApp_Dinner3;
+                    break;
+                case 4:
+                    this.mealName = AppResources.MensaApp_Dinner4;
+                    break;
+                case 5:
+                    this.mealName = AppResources.MensaApp_Dinner5;
+                    break;
+                case 6:
+                    this.mealName = AppResources.MensaApp_Bio;
+                    break;
+                case 7:
+                    this.mealName = AppResources.MensaApp_Action;
+                    break;
+                default:
+                    this.mealName = string.Empty;
+                    break;
+            }
+        }
+
+        /// <summary>
+        /// Method create depends of the iconUrl the iconName
+        /// </summary>
+        private void CreateIconUrl()
+        {
+            switch (this.iconName)
+            {
+                case MealModel.MealIconNameVegetarian:
+                    this.iconUrl = Icons.Info;
+                    break;
+                case MealModel.MealIconNameFree:
+                    this.iconUrl = Icons.Info;
+                    break;
+                case MealModel.MealIconNameCowPig:
+                    this.iconUrl = Icons.Info;
+                    break;
+                case MealModel.MealIconNameFish:
+                    this.iconUrl = Icons.Info;
+                    break;
+                case MealModel.MealIconNameFowl:
+                    this.iconUrl = Icons.Info;
+                    break;
+                case MealModel.MealIconNameLamb:
+                    this.iconUrl = Icons.Info;
+                    break;
+                case MealModel.MealIconNamePig:
+                    this.iconUrl = Icons.Info;
+                    break;
+                case MealModel.MealIconNameWild:
+                    this.iconUrl = Icons.Info;
+                    break;
+                case MealModel.MealIconNameCow:
+                    this.iconUrl = Icons.Info;
+                    break;
+                default:
+                    this.iconUrl = string.Empty;
+                    break;
+            }
+        }
+
+        #endregion
+    }
+}