From 94ce3f1c6e0b3fe10095c5b47a4d33f3a86c787c Mon Sep 17 00:00:00 2001
From: stubbfel <stubbe@iit.tu-cottbus.de>
Date: Mon, 26 Aug 2013 18:35:18 +0200
Subject: [PATCH 1/3] add  IsWifiAvailable

---
 .../CampusAppWP8/Model/Setting/AppSettings.cs | 15 +++++++++++++
 .../Resources/Constants.Designer.cs           |  9 ++++++++
 .../CampusAppWP8/Resources/Constants.resx     |  3 +++
 .../CampusAppWP8/Utility/Utilities.cs         | 22 +++++++++++++++----
 4 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/CampusAppWP8/CampusAppWP8/Model/Setting/AppSettings.cs b/CampusAppWP8/CampusAppWP8/Model/Setting/AppSettings.cs
index f3df4c5d..29c582d4 100644
--- a/CampusAppWP8/CampusAppWP8/Model/Setting/AppSettings.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Setting/AppSettings.cs
@@ -76,5 +76,20 @@ namespace CampusAppWP8.Model.Setting
                 App.SaveToAppState<bool>(Constants.AppSetting_UniNet, value);
             }
         }
+
+        /// <summary>Gets or sets a value indicating whether this object is WiFi enable.</summary>
+        /// <value>true if WiFi enable, false if not.</value>
+        public bool WifiEnable
+        {
+            get
+            {
+                return App.LoadFromAppState<bool>(Constants.AppSetting_WifiEnable);
+            }
+
+            set
+            {
+                App.SaveToAppState<bool>(Constants.AppSetting_WifiEnable, value);
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs b/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs
index b0390c1f..00bcf801 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs
+++ b/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs
@@ -114,6 +114,15 @@ namespace CampusAppWP8.Resources {
             }
         }
         
+        /// <summary>
+        ///   Sucht eine lokalisierte Zeichenfolge, die WifiEnable ähnelt.
+        /// </summary>
+        public static string AppSetting_WifiEnable {
+            get {
+                return ResourceManager.GetString("AppSetting_WifiEnable", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Sucht eine lokalisierte Zeichenfolge, die DepartmentFavoriteFeed.xml ähnelt.
         /// </summary>
diff --git a/CampusAppWP8/CampusAppWP8/Resources/Constants.resx b/CampusAppWP8/CampusAppWP8/Resources/Constants.resx
index f7928283..fa445bbf 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/Constants.resx
+++ b/CampusAppWP8/CampusAppWP8/Resources/Constants.resx
@@ -426,4 +426,7 @@
   <data name="AppSetting_UniNetworkName" xml:space="preserve">
     <value>802.1X</value>
   </data>
+  <data name="AppSetting_WifiEnable" xml:space="preserve">
+    <value>WifiEnable</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs b/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
index 8cb72693..37692a9d 100644
--- a/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
+++ b/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
@@ -12,14 +12,11 @@ namespace CampusAppWP8.Utility
     using System.Device.Location;
     using System.Globalization;
     using System.Linq;
-    using System.Runtime.InteropServices.WindowsRuntime;
     using System.Threading;
     using System.Windows;
     using System.Windows.Controls;
     using System.Windows.Media;
     using CampusAppWP8.Resources;
-    using CampusAppWP8.Utility.NDEF;
-    using Windows.Networking.Proximity;
     using Microsoft.Phone.Net.NetworkInformation;
 
     /// <summary>
@@ -288,7 +285,7 @@ namespace CampusAppWP8.Utility
             }
         }
 
-        /// <summary>Query if the phon is in the uni network. Method compares only Networkname and Description!</summary>
+        /// <summary>Query if the phone is in the uni network. Method compares only Networkname and Description!</summary>
         /// <remarks>Stubbfel, 26.08.2013.</remarks>
         /// <returns>true if uni networkavailable, false if not.</returns>
         public static bool IsUniNetworkAvailable()
@@ -306,5 +303,22 @@ namespace CampusAppWP8.Utility
             }
             return false;
         }
+
+        /// <summary>Queries if a wifik is available.</summary>
+        /// <remarks>Stubbfel, 26.08.2013.</remarks>
+        /// <returns>true if a wifik is available, false if not.</returns>
+        public static bool IsWifiAvailable()
+        {
+            NetworkInterfaceList networkInterfaceList = new NetworkInterfaceList();
+            foreach (NetworkInterfaceInfo networkInterfaceInfo in networkInterfaceList)
+            {
+                if (networkInterfaceInfo.InterfaceType == NetworkInterfaceType.Wireless80211
+                    && networkInterfaceInfo.InterfaceSubtype == NetworkInterfaceSubType.WiFi)
+                {
+                    return true;
+                }
+            }
+            return false;
+        }
     }
 }
\ No newline at end of file

From 870b5314ab7b3e5296678d485c8f936920e41e86 Mon Sep 17 00:00:00 2001
From: stubbfel <stubbe@iit.tu-cottbus.de>
Date: Tue, 27 Aug 2013 10:13:59 +0200
Subject: [PATCH 2/3] add onlywifi option

---
 CampusAppWP8/CampusAppWP8/App.xaml.cs             | 10 +++++++++-
 .../CampusAppWP8/Model/Setting/AppSettings.cs     | 15 +++++++++++++++
 .../Pages/Setting/AppSettingPage.xaml             |  6 +++++-
 .../Pages/Setting/AppSettingPage.xaml.cs          |  2 ++
 .../Resources/AppResources.Designer.cs            |  9 +++++++++
 .../CampusAppWP8/Resources/AppResources.resx      |  3 +++
 .../CampusAppWP8/Resources/Constants.Designer.cs  |  9 +++++++++
 .../CampusAppWP8/Resources/Constants.resx         |  3 +++
 CampusAppWP8/CampusAppWP8/Utility/Utilities.cs    |  6 ++++--
 9 files changed, 59 insertions(+), 4 deletions(-)

diff --git a/CampusAppWP8/CampusAppWP8/App.xaml.cs b/CampusAppWP8/CampusAppWP8/App.xaml.cs
index 12dd2832..55c47531 100644
--- a/CampusAppWP8/CampusAppWP8/App.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/App.xaml.cs
@@ -152,7 +152,15 @@ namespace CampusAppWP8
 
             this.UserSettingsLoaded();
 
-            Settings.AppSetting.UniNetwork = Utilities.IsUniNetworkAvailable();                       
+            Settings.AppSetting.UniNetwork = Utilities.IsUniNetworkAvailable();
+            if (!Settings.AppSetting.UniNetwork)
+            {
+                Settings.AppSetting.WifiEnable = Utilities.IsWifiAvailable();
+            }
+            else
+            {
+                Settings.AppSetting.WifiEnable = true;
+            }
             
             if (Settings.AppSetting.GeoWatchEnable)
             {
diff --git a/CampusAppWP8/CampusAppWP8/Model/Setting/AppSettings.cs b/CampusAppWP8/CampusAppWP8/Model/Setting/AppSettings.cs
index 29c582d4..65da2561 100644
--- a/CampusAppWP8/CampusAppWP8/Model/Setting/AppSettings.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/Setting/AppSettings.cs
@@ -91,5 +91,20 @@ namespace CampusAppWP8.Model.Setting
                 App.SaveToAppState<bool>(Constants.AppSetting_WifiEnable, value);
             }
         }
+
+        /// <summary>Gets or sets a value indicating whether the only WiFi.</summary>
+        /// <value>true if only wifi, false if not.</value>
+        public bool OnlyWifi
+        {
+            get
+            {
+                return App.LoadFromAppState<bool>(Constants.AppSetting_OnlyWifi);
+            }
+
+            set
+            {
+                App.SaveToAppState<bool>(Constants.AppSetting_OnlyWifi, value);
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Setting/AppSettingPage.xaml b/CampusAppWP8/CampusAppWP8/Pages/Setting/AppSettingPage.xaml
index 970f9b5d..82e30fd7 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Setting/AppSettingPage.xaml
+++ b/CampusAppWP8/CampusAppWP8/Pages/Setting/AppSettingPage.xaml
@@ -30,12 +30,16 @@
         <!--ContentPanel - zusätzliche Inhalte hier platzieren-->
         <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
             <Grid.RowDefinitions>
+                <RowDefinition Height="auto"/>
                 <RowDefinition Height="auto"/>
                 <RowDefinition Height="*"/>
             </Grid.RowDefinitions>
-            <StackPanel>
+            <StackPanel Grid.Row="0">
                 <toolkit:ToggleSwitch Name="GeoWatchToggle" Content="{Binding Path=LocalizedResources.Setting_AppGeoWatch, Source={StaticResource LocalizedStrings}}"></toolkit:ToggleSwitch>
             </StackPanel>
+            <StackPanel Grid.Row="1">
+                <toolkit:ToggleSwitch Name="OnlyWiFiToggle" Content="{Binding Path=LocalizedResources.Setting_AppOnlyWifi, Source={StaticResource LocalizedStrings}}"></toolkit:ToggleSwitch>
+            </StackPanel>
         </Grid>
     </Grid>
 
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Setting/AppSettingPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Setting/AppSettingPage.xaml.cs
index a7d851b7..a3406e04 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Setting/AppSettingPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Setting/AppSettingPage.xaml.cs
@@ -22,6 +22,7 @@ namespace CampusAppWP8.Pages.Setting
         {
             this.InitializeComponent();
             GeoWatchToggle.IsChecked = Settings.AppSetting.GeoWatchEnable;
+            OnlyWiFiToggle.IsChecked = Settings.AppSetting.OnlyWifi;
         }
 
         /// <summary>
@@ -33,6 +34,7 @@ namespace CampusAppWP8.Pages.Setting
             if (NavigationMode.Back == e.NavigationMode)
             {
                 Settings.AppSetting.GeoWatchEnable = GeoWatchToggle.IsChecked.Value;
+                Settings.AppSetting.OnlyWifi = OnlyWiFiToggle.IsChecked.Value;
             }
         }
     }
diff --git a/CampusAppWP8/CampusAppWP8/Resources/AppResources.Designer.cs b/CampusAppWP8/CampusAppWP8/Resources/AppResources.Designer.cs
index 7b79160f..9d229538 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/AppResources.Designer.cs
+++ b/CampusAppWP8/CampusAppWP8/Resources/AppResources.Designer.cs
@@ -771,6 +771,15 @@ namespace CampusAppWP8.Resources {
             }
         }
         
+        /// <summary>
+        ///   Sucht eine lokalisierte Zeichenfolge, die Nur mit Wlan laden ähnelt.
+        /// </summary>
+        public static string Setting_AppOnlyWifi {
+            get {
+                return ResourceManager.GetString("Setting_AppOnlyWifi", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Sucht eine lokalisierte Zeichenfolge, die Mitarbeiter ähnelt.
         /// </summary>
diff --git a/CampusAppWP8/CampusAppWP8/Resources/AppResources.resx b/CampusAppWP8/CampusAppWP8/Resources/AppResources.resx
index db84d97c..0f2c1050 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/AppResources.resx
+++ b/CampusAppWP8/CampusAppWP8/Resources/AppResources.resx
@@ -416,4 +416,7 @@
   <data name="TextToSpeech_Btn" xml:space="preserve">
     <value>vorlesen</value>
   </data>
+  <data name="Setting_AppOnlyWifi" xml:space="preserve">
+    <value>Nur mit Wlan laden</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs b/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs
index 00bcf801..e8d7a953 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs
+++ b/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs
@@ -87,6 +87,15 @@ namespace CampusAppWP8.Resources {
             }
         }
         
+        /// <summary>
+        ///   Sucht eine lokalisierte Zeichenfolge, die OnlyWifi ähnelt.
+        /// </summary>
+        public static string AppSetting_OnlyWifi {
+            get {
+                return ResourceManager.GetString("AppSetting_OnlyWifi", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Sucht eine lokalisierte Zeichenfolge, die UniNet ähnelt.
         /// </summary>
diff --git a/CampusAppWP8/CampusAppWP8/Resources/Constants.resx b/CampusAppWP8/CampusAppWP8/Resources/Constants.resx
index fa445bbf..00beecb5 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/Constants.resx
+++ b/CampusAppWP8/CampusAppWP8/Resources/Constants.resx
@@ -429,4 +429,7 @@
   <data name="AppSetting_WifiEnable" xml:space="preserve">
     <value>WifiEnable</value>
   </data>
+  <data name="AppSetting_OnlyWifi" xml:space="preserve">
+    <value>OnlyWifi</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs b/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
index 37692a9d..8cb44876 100644
--- a/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
+++ b/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
@@ -296,7 +296,8 @@ namespace CampusAppWP8.Utility
                 if (networkInterfaceInfo.InterfaceType == NetworkInterfaceType.Wireless80211
                     && networkInterfaceInfo.InterfaceSubtype == NetworkInterfaceSubType.WiFi
                     && networkInterfaceInfo.InterfaceName.Equals(Constants.AppSetting_UniNetworkName)
-                    && networkInterfaceInfo.Description.Equals(Constants.AppSetting_UniNetworkDesc))
+                    && networkInterfaceInfo.Description.Equals(Constants.AppSetting_UniNetworkDesc)
+                    && networkInterfaceInfo.InterfaceState == ConnectState.Connected)
                 {
                     return true;
                 }
@@ -313,7 +314,8 @@ namespace CampusAppWP8.Utility
             foreach (NetworkInterfaceInfo networkInterfaceInfo in networkInterfaceList)
             {
                 if (networkInterfaceInfo.InterfaceType == NetworkInterfaceType.Wireless80211
-                    && networkInterfaceInfo.InterfaceSubtype == NetworkInterfaceSubType.WiFi)
+                    && networkInterfaceInfo.InterfaceSubtype == NetworkInterfaceSubType.WiFi
+                    && networkInterfaceInfo.InterfaceState == ConnectState.Connected)
                 {
                     return true;
                 }

From c1eadc24527b119e89a19b8d3a657118bee665fe Mon Sep 17 00:00:00 2001
From: stubbfel <stubbe@iit.tu-cottbus.de>
Date: Tue, 27 Aug 2013 11:23:07 +0200
Subject: [PATCH 3/3] add getLoadmodus

---
 CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj  |  3 +++
 .../CampusAppWP8/Feed/Link/ClubLinkFeed.cs     |  2 +-
 .../CampusAppWP8/Feed/Link/CommonLinkFeed.cs   |  2 +-
 .../CampusAppWP8/Feed/Mensa/MensaFeed.cs       |  2 +-
 .../Feed/StudentCouncil/StudentCouncilFeed.cs  |  2 +-
 .../Departments/DepartmentIndexPage.xaml.cs    |  4 +++-
 .../Pages/Events/EventIndexPage.xaml.cs        | 18 +++++++++++++++++-
 .../Pages/Lecture/LecturePage.xaml.cs          |  1 +
 .../CampusAppWP8/Pages/Links/LinkPage.xaml.cs  |  5 +++--
 .../CampusAppWP8/Pages/Mensa/MensaPage.xaml.cs |  3 ++-
 .../Pages/News/NewsIndexPage.xaml.cs           | 17 ++++++++++++++++-
 .../Openinghours/OpeninghoursPage.xaml.cs      |  3 ++-
 .../StudentCouncil/StudentCouncilPage.xaml.cs  |  3 ++-
 CampusAppWP8/CampusAppWP8/Utility/Utilities.cs | 16 ++++++++++++++++
 14 files changed, 69 insertions(+), 12 deletions(-)

diff --git a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
index 45ea5c51..b86cead6 100644
--- a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
+++ b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
@@ -483,6 +483,9 @@
   <ItemGroup>
     <Service Include="{508349B6-6B84-4DF5-91F0-309BEEBAD82D}" />
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Feed\Utility\" />
+  </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.
diff --git a/CampusAppWP8/CampusAppWP8/Feed/Link/ClubLinkFeed.cs b/CampusAppWP8/CampusAppWP8/Feed/Link/ClubLinkFeed.cs
index e2608efa..ff4e256c 100644
--- a/CampusAppWP8/CampusAppWP8/Feed/Link/ClubLinkFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Link/ClubLinkFeed.cs
@@ -62,7 +62,7 @@ namespace CampusAppWP8.Feed.Link
         /// <returns>true, if file is up-to-date, otherwise false</returns>
         private bool CheckIsFileUpToDate(LinkListModel model, FileInfo fileInfo)
         {
-            if (fileInfo == null || !fileInfo.Exists)
+            if (fileInfo == null || !fileInfo.Exists || fileInfo.Length < 1)
             {
                 return false;
             }
diff --git a/CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs b/CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs
index 0f988eeb..57e07b05 100644
--- a/CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Link/CommonLinkFeed.cs
@@ -62,7 +62,7 @@ namespace CampusAppWP8.Feed.Link
         /// <returns>true, if file is up-to-date, otherwise false</returns>
         private bool CheckIsFileUpToDate(LinkListModel model, FileInfo fileInfo)
         {
-            if (fileInfo == null || !fileInfo.Exists)
+            if (fileInfo == null || !fileInfo.Exists || fileInfo.Length < 1)
             {
                 return false;
             }
diff --git a/CampusAppWP8/CampusAppWP8/Feed/Mensa/MensaFeed.cs b/CampusAppWP8/CampusAppWP8/Feed/Mensa/MensaFeed.cs
index a4c33940..2fbd42cd 100644
--- a/CampusAppWP8/CampusAppWP8/Feed/Mensa/MensaFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/Mensa/MensaFeed.cs
@@ -96,7 +96,7 @@ namespace CampusAppWP8.Feed.Mensa
         /// <returns>true, if file is up-to-date, otherwise false</returns>
         private bool CheckIsFileUpToDate(MenuWeekModel model, FileInfo fileInfo)
         {
-            if (fileInfo == null || !fileInfo.Exists)
+            if (fileInfo == null || !fileInfo.Exists || fileInfo.Length < 1)
             {
                 return false;
             }
diff --git a/CampusAppWP8/CampusAppWP8/Feed/StudentCouncil/StudentCouncilFeed.cs b/CampusAppWP8/CampusAppWP8/Feed/StudentCouncil/StudentCouncilFeed.cs
index 9db17651..c381f65f 100644
--- a/CampusAppWP8/CampusAppWP8/Feed/StudentCouncil/StudentCouncilFeed.cs
+++ b/CampusAppWP8/CampusAppWP8/Feed/StudentCouncil/StudentCouncilFeed.cs
@@ -62,7 +62,7 @@ namespace CampusAppWP8.Feed.StudentCouncil
         /// <returns>true, if file is up-to-date, otherwise false</returns>
         private bool CheckIsFileUpToDate(StudentCouncilListModel model, FileInfo fileInfo)
         {
-            if (fileInfo == null || !fileInfo.Exists)
+            if (fileInfo == null || !fileInfo.Exists || fileInfo.Length < 1)
             {
                 return false;
             }
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml.cs
index 3e54758a..de83647e 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Departments/DepartmentIndexPage.xaml.cs
@@ -15,6 +15,7 @@ namespace CampusAppWP8.Pages.Departments
     using CampusAppWP8.Resources;
     using CampusAppWP8.Utility.Lui.MessageBoxes;
     using Microsoft.Phone.Controls;
+    using CampusAppWP8.Utility;
 
     /// <summary>
     /// Page with a list of the faculties.
@@ -48,7 +49,8 @@ namespace CampusAppWP8.Pages.Departments
             DepartmentIndexPage.feed.OnLoaded += new DepartmentFeed.OnIO(this.SetupFacultyList);
             DepartmentIndexPage.feed.OnFailedWeb += new DepartmentFeed.OnFailed(this.FeedIsFailedWeb);
             DepartmentIndexPage.feed.OnFailedFile += new DepartmentFeed.OnFailed(this.FeedIsFailedFile);
-            DepartmentIndexPage.feed.LoadData();
+
+            DepartmentIndexPage.feed.LoadData(Utilities.getLoadModus<Model.Departments.DepartmentModel>());
         
             if (DepartmentIndexPage.favorite == null)
             {
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Events/EventIndexPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Events/EventIndexPage.xaml.cs
index bb9f2dc7..be2584e2 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Events/EventIndexPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Events/EventIndexPage.xaml.cs
@@ -12,6 +12,7 @@ namespace CampusAppWP8.Pages.Events
     using System.Windows.Navigation;
     using CampusAppWP8.Feed.Events;
     using CampusAppWP8.Resources;
+    using CampusAppWP8.Utility;
     using CampusAppWP8.Utility.Lui.MessageBoxes;
     using Microsoft.Phone.Controls;
     using Microsoft.Phone.Shell;
@@ -48,7 +49,7 @@ namespace CampusAppWP8.Pages.Events
             EventIndexPage.eventFeed.OnLoaded += new EventFeed.OnIO(this.SetupEventPageList);
             EventIndexPage.eventFeed.OnFailedWeb += new EventFeed.OnFailed(this.FeedIsFailedWeb);
             EventIndexPage.eventFeed.OnFailedFile += new EventFeed.OnFailed(this.FeedIsFailedFile);
-            EventIndexPage.eventFeed.LoadData();
+            EventIndexPage.eventFeed.LoadData(Utilities.getLoadModus<Model.RSS.RSSViewModel>());
         }
 
         /// <summary>
@@ -88,6 +89,21 @@ namespace CampusAppWP8.Pages.Events
             base.OnNavigatedTo(e);
         }
 
+        /// <summary>
+        /// Methods overrides the  OnNavigatedFrom-Method
+        /// </summary>
+        /// <param name="e">some NavigationEventArgs</param>
+        protected override void OnNavigatedFrom(NavigationEventArgs e)
+        {
+            if (NavigationMode.Back == e.NavigationMode)
+            {
+                // delete all models
+                EventIndexPage.eventFeed.SaveData();
+            }
+
+            base.OnNavigatedFrom(e);
+        }
+
         /// <summary>
         /// Is called after the RSS feeds are loaded into the eventFeed model. 
         /// If there was no feed information set to the UI, the feed list 
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Lecture/LecturePage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Lecture/LecturePage.xaml.cs
index a29a037d..df00699e 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Lecture/LecturePage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Lecture/LecturePage.xaml.cs
@@ -63,6 +63,7 @@ namespace CampusAppWP8.Pages.Lecture
         #region methods
 
         #region protected
+        
         /// <summary>
         /// Methods overrides the  OnNavigatedFrom-Method
         /// </summary>
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml.cs
index 30ff8fa0..4cac9c3a 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Links/LinkPage.xaml.cs
@@ -14,6 +14,7 @@ namespace CampusAppWP8.Pages.Links
     using CampusAppWP8.Resources;
     using CampusAppWP8.Utility.Lui.MessageBoxes;
     using Microsoft.Phone.Controls;
+    using CampusAppWP8.Utility;
 
     /// <summary>
     /// Class for the LinkPage
@@ -66,8 +67,8 @@ namespace CampusAppWP8.Pages.Links
             this.InitializeFeeds();
             this.ProgressBar.Visibility = System.Windows.Visibility.Visible;
             this.loadingFeeds = 2;
-            this.commonLinkFeed.LoadData();
-            this.clubLinkFeed.LoadData();
+            this.commonLinkFeed.LoadData(Utilities.getLoadModus<Model.Link.LinkListModel>());
+            this.clubLinkFeed.LoadData(Utilities.getLoadModus<Model.Link.LinkListModel>());
         }
 
         /// <summary>
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Mensa/MensaPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Mensa/MensaPage.xaml.cs
index ffb6d246..228ffcb9 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Mensa/MensaPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Mensa/MensaPage.xaml.cs
@@ -17,6 +17,7 @@ namespace CampusAppWP8.Pages.Mensa
     using CampusAppWP8.Utility.Lui.MessageBoxes;
     using Microsoft.Phone.Controls;
     using Microsoft.Phone.Shell;
+    using CampusAppWP8.Utility;
 
     /// <summary>
     /// Class for the MensaPage
@@ -176,7 +177,7 @@ namespace CampusAppWP8.Pages.Mensa
             }
             else
             {
-                this.feed.LoadData();
+                this.feed.LoadData(Utilities.getLoadModus<Model.Mensa.MenuWeekModel>());
             }
         }
 
diff --git a/CampusAppWP8/CampusAppWP8/Pages/News/NewsIndexPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/News/NewsIndexPage.xaml.cs
index 7a8b5e57..b48619c2 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/News/NewsIndexPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/News/NewsIndexPage.xaml.cs
@@ -15,6 +15,7 @@ namespace CampusAppWP8.Pages.News
     using CampusAppWP8.Utility.Lui.MessageBoxes;
     using Microsoft.Phone.Controls;
     using Microsoft.Phone.Shell;
+    using CampusAppWP8.Utility;
     
     /// <summary>
     /// Overview page of all news.
@@ -48,7 +49,7 @@ namespace CampusAppWP8.Pages.News
             NewsIndexPage.newsFeed.OnLoaded += new NewsFeed.OnIO(this.SetupNewsPageList);
             NewsIndexPage.newsFeed.OnFailedWeb += new NewsFeed.OnFailed(this.FeedIsFailWeb);
             NewsIndexPage.newsFeed.OnFailedFile += new NewsFeed.OnFailed(this.FeedIsFailFile);
-            NewsIndexPage.newsFeed.LoadData();
+            NewsIndexPage.newsFeed.LoadData(Utilities.getLoadModus<Model.RSS.RSSViewModel>());
         }
 
         /// <summary>
@@ -88,6 +89,20 @@ namespace CampusAppWP8.Pages.News
             base.OnNavigatedTo(e);
         }
 
+        /// <summary>
+        /// Methods overrides the  OnNavigatedFrom-Method
+        /// </summary>
+        /// <param name="e">some NavigationEventArgs</param>
+        protected override void OnNavigatedFrom(NavigationEventArgs e)
+        {
+            if (NavigationMode.Back == e.NavigationMode)
+            {
+                // delete all models
+                NewsIndexPage.newsFeed.SaveData();
+            }
+
+            base.OnNavigatedFrom(e);
+        }
         /// <summary>
         /// Is called after the RSS feeds are loaded into the newsFeed model. 
         /// If there was no feed information set to the UI, the feed list 
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs
index 16d28f4a..ab256c91 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Openinghours/OpeninghoursPage.xaml.cs
@@ -15,6 +15,7 @@ namespace CampusAppWP8.Pages.Openinghours
     using CampusAppWP8.Resources;
     using CampusAppWP8.Utility.Lui.MessageBoxes;
     using Microsoft.Phone.Controls;
+    using CampusAppWP8.Utility;
 
     /// <summary>
     /// Opening hours page.
@@ -51,7 +52,7 @@ namespace CampusAppWP8.Pages.Openinghours
                 this.feed.OnLoaded += new OpeninghoursFeed.OnIO(this.FeedIsReady);
                 this.feed.OnFailedWeb += new OpeninghoursFeed.OnFailed(this.FeedIsFailedWeb);
                 this.feed.OnFailedFile += new OpeninghoursFeed.OnFailed(this.FeedIsFailedFile);
-                this.feed.LoadData();
+                this.feed.LoadData(Utilities.getLoadModus<Model.Openinghours.OpeninghoursModel>());
             }
 
             this.isNewInstance = true;
diff --git a/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml.cs
index 2e548d4f..63523e6f 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/StudentCouncil/StudentCouncilPage.xaml.cs
@@ -14,6 +14,7 @@ namespace CampusAppWP8.Pages.StudentCouncil
     using CampusAppWP8.Resources;
     using CampusAppWP8.Utility.Lui.MessageBoxes;
     using Microsoft.Phone.Controls;
+    using CampusAppWP8.Utility;
 
     /// <summary>
     /// Class for the  StudentCouncilPage
@@ -59,7 +60,7 @@ namespace CampusAppWP8.Pages.StudentCouncil
             }
 
             this.ProgressBar.Visibility = System.Windows.Visibility.Visible;
-            this.feed.LoadData();
+            this.feed.LoadData(Utilities.getLoadModus<Model.StudentCouncil.StudentCouncilListModel>());
         }
 
         /// <summary>
diff --git a/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs b/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
index 8cb44876..b5543dd9 100644
--- a/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
+++ b/CampusAppWP8/CampusAppWP8/Utility/Utilities.cs
@@ -322,5 +322,21 @@ namespace CampusAppWP8.Utility
             }
             return false;
         }
+
+        /// <summary>Gets load modus. Is check if the only Wifi option is active</summary>
+        /// <remarks>Stubbfel, 27.08.2013.</remarks>
+        /// <typeparam name="T">Generic type parameter.</typeparam>
+        /// <returns>The load modus&lt; t&gt;</returns>
+        public static MainModel<T>.ForceType getLoadModus<T>()
+        {
+            if (Settings.AppSetting.OnlyWifi && !Settings.AppSetting.WifiEnable)
+            {
+                return MainModel<T>.ForceType.FORCE_FILE;
+            }
+            else
+            {
+                return MainModel<T>.ForceType.INVALID;
+            }
+        }
     }
 }
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