diff --git a/CampusAppWP8/CampusAppWP8/Model/MainModel.cs b/CampusAppWP8/CampusAppWP8/Model/MainModel.cs
index ca175cbc..b36d20e2 100644
--- a/CampusAppWP8/CampusAppWP8/Model/MainModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/MainModel.cs
@@ -8,11 +8,13 @@
 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>
@@ -49,6 +51,11 @@ namespace CampusAppWP8
         /// </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>
@@ -57,25 +64,27 @@ namespace CampusAppWP8
         /// <param name="url">url of the feed</param>
         public MainModel(ModelType modelType, string fileName, string url)
         {
-            this.modelType = modelType;
+            this.Init(modelType, fileName, url);
+        }
 
-            if ((url != null) && (url.Equals(string.Empty) == false))
+        /// <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.httpApiUri = new Uri(url, UriKind.Absolute);
+                this.Init(modelType, sourceName, string.Empty);
             }
-
-            this.fileName = fileName;
-
-            if ((this.IsFile() == true)
-                && (fileName.Equals(string.Empty) == false))
+            else if (modelType == ModelType.Feed)
             {
-                this.InitFile(CampusAppWP8.Utility.File.IOTypeRead.ReadSync, CampusAppWP8.Utility.File.IOTypeWrite.WriteAsync);
+                this.Init(modelType, string.Empty, sourceName);
             }
-
-            if ((this.IsHttpApi() == true)
-            && (url.Equals(string.Empty) == false))
+            else
             {
-                this.InitHttpApi();
+                throw new NotSupportedException("Wrong constructor was called for Feed and File support.");
             }
         }
 
@@ -272,7 +281,14 @@ namespace CampusAppWP8
 
                 if (loadFromFile == false)
                 {
-                    this.api.HttpGet(this.httpApiUri, this.OnLoadDataComplete);
+                    if (this.paramizedUri != null)
+                    {
+                        this.api.HttpGet(this.paramizedUri, this.OnLoadDataComplete);
+                    }
+                    else
+                    {
+                        this.api.HttpGet(this.httpApiUri, this.OnLoadDataComplete);
+                    }
                 }
                 else
                 {
@@ -335,6 +351,26 @@ namespace CampusAppWP8
             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>
@@ -380,6 +416,36 @@ namespace CampusAppWP8
             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>
@@ -402,7 +468,7 @@ namespace CampusAppWP8
             if ((this.IsHttpApi() == true)
             && (this.api == null))
             {
-                this.api = new HttpRequest();
+                this.api = new HttpRequest(this.httpApiUri);
             }
         }
 
diff --git a/CampusAppWP8/CampusAppWP8/Model/XmlModel.cs b/CampusAppWP8/CampusAppWP8/Model/XmlModel.cs
index 4baedf31..7803e0e8 100644
--- a/CampusAppWP8/CampusAppWP8/Model/XmlModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/XmlModel.cs
@@ -28,6 +28,17 @@ namespace CampusAppWP8.Model
         {
         }
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="XmlModel{T}" /> class.
+        /// Use only if the model io type is file or feed, not both.
+        /// </summary>
+        /// <param name="modelType">model io type</param>
+        /// <param name="sourceName">name of the file or the url of the feed</param>
+        public XmlModel(ModelType modelType, string sourceName)
+            : base(modelType, sourceName)
+        {
+        }
+
         /// <summary>
         /// Create the model from a xml byte array.
         /// </summary>
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Events/EventIndexPage.xaml b/CampusAppWP8/CampusAppWP8/Pages/Events/EventIndexPage.xaml
index 692f5dec..b545f2dc 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Events/EventIndexPage.xaml
+++ b/CampusAppWP8/CampusAppWP8/Pages/Events/EventIndexPage.xaml
@@ -37,7 +37,7 @@
             <ListBox.ItemTemplate>
                 <DataTemplate>
                     <lui:NavigateButton Name="EventItem" QuerryStringValue="{Binding Index}" Url="{Binding Path=Constants.PathEvent_EventPage, Source={StaticResource Const}}" QuerryStringName="{Binding Path=Constants.ParamPivotIndex, Source={StaticResource Const}}" Style="{StaticResource ListButtonStyle}">
-                        <TextBlock TextWrapping="Wrap" Text="{Binding Title}" />
+                        <TextBlock TextWrapping="Wrap" Text="{Binding Title}"/>
                     </lui:NavigateButton>
                 </DataTemplate>
             </ListBox.ItemTemplate>