Index: Core/Common/src/Core.Common.Controls.TreeView/Core.Common.Controls.TreeView.csproj
===================================================================
diff -u -rdb46e1af6dc390f8e9a9bea0ba1a3529559d8f3b -r1fd75ff6e5e3593bdf2c875a1dc107b22b482418
--- Core/Common/src/Core.Common.Controls.TreeView/Core.Common.Controls.TreeView.csproj	(.../Core.Common.Controls.TreeView.csproj)	(revision db46e1af6dc390f8e9a9bea0ba1a3529559d8f3b)
+++ Core/Common/src/Core.Common.Controls.TreeView/Core.Common.Controls.TreeView.csproj	(.../Core.Common.Controls.TreeView.csproj)	(revision 1fd75ff6e5e3593bdf2c875a1dc107b22b482418)
@@ -54,7 +54,6 @@
     <Compile Include="TreeViewControl.Designer.cs">
       <DependentUpon>TreeViewControl.cs</DependentUpon>
     </Compile>
-    <Compile Include="TreeNodeDataDeletedEventArgs.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core.Common.Base\Core.Common.Base.csproj">
@@ -67,6 +66,10 @@
       <Name>Core.Common.Controls</Name>
       <Private>False</Private>
     </ProjectReference>
+    <ProjectReference Include="..\Core.Common.Utils\Core.Common.Utils.csproj">
+      <Project>{F49BD8B2-332A-4C91-A196-8CCE0A2C7D98}</Project>
+      <Name>Core.Common.Utils</Name>
+    </ProjectReference>
     <ProjectReference Include="..\Core.Common.Version\Core.Common.Version.csproj">
       <Project>{c90b77da-e421-43cc-b82e-529651bc21ac}</Project>
       <Name>Core.Common.Version</Name>
Fisheye: Tag 1fd75ff6e5e3593bdf2c875a1dc107b22b482418 refers to a dead (removed) revision in file `Core/Common/src/Core.Common.Controls.TreeView/TreeNodeDataDeletedEventArgs.cs'.
Fisheye: No comparison available.  Pass `N' to diff?
Index: Core/Common/src/Core.Common.Controls.TreeView/TreeViewControl.cs
===================================================================
diff -u -r46a14ec1ad945f15590e3362d8fe47498110e10d -r1fd75ff6e5e3593bdf2c875a1dc107b22b482418
--- Core/Common/src/Core.Common.Controls.TreeView/TreeViewControl.cs	(.../TreeViewControl.cs)	(revision 46a14ec1ad945f15590e3362d8fe47498110e10d)
+++ Core/Common/src/Core.Common.Controls.TreeView/TreeViewControl.cs	(.../TreeViewControl.cs)	(revision 1fd75ff6e5e3593bdf2c875a1dc107b22b482418)
@@ -30,6 +30,7 @@
 using System.Windows.Forms.VisualStyles;
 using Core.Common.Base;
 using Core.Common.Controls.TreeView.Properties;
+using Core.Common.Utils.Events;
 using BaseResources = Core.Common.Base.Properties.Resources;
 
 namespace Core.Common.Controls.TreeView
@@ -39,7 +40,7 @@
         public event EventHandler DataDoubleClick;
         public event EventHandler SelectedDataChanged;
         public event EventHandler NodeUpdated; // TODO; Way to explicit!
-        public event EventHandler<TreeNodeDataDeletedEventArgs> DataDeleted; // TODO; Way to explicit!
+        public event EventHandler<EventArgs<object>> DataDeleted; // TODO; Way to explicit!
 
         private const int maximumTextLength = 259;
         private const string stateImageLocationString = "StateImage";
@@ -541,7 +542,7 @@
         {
             if (DataDeleted != null)
             {
-                DataDeleted(this, new TreeNodeDataDeletedEventArgs(node.Tag));
+                DataDeleted(this, new EventArgs<object>(node.Tag));
             }
         }
 
Index: Core/Plugins/src/Core.Plugins.ProjectExplorer/Core.Plugins.ProjectExplorer.csproj
===================================================================
diff -u -re4ee8a21ab07f3446dc417e50574b6bc6106f460 -r1fd75ff6e5e3593bdf2c875a1dc107b22b482418
--- Core/Plugins/src/Core.Plugins.ProjectExplorer/Core.Plugins.ProjectExplorer.csproj	(.../Core.Plugins.ProjectExplorer.csproj)	(revision e4ee8a21ab07f3446dc417e50574b6bc6106f460)
+++ Core/Plugins/src/Core.Plugins.ProjectExplorer/Core.Plugins.ProjectExplorer.csproj	(.../Core.Plugins.ProjectExplorer.csproj)	(revision 1fd75ff6e5e3593bdf2c875a1dc107b22b482418)
@@ -124,6 +124,10 @@
       <Name>Core.Common.Gui</Name>
       <Private>False</Private>
     </ProjectReference>
+    <ProjectReference Include="..\..\..\Common\src\Core.Common.Utils\Core.Common.Utils.csproj">
+      <Project>{F49BD8B2-332A-4C91-A196-8CCE0A2C7D98}</Project>
+      <Name>Core.Common.Utils</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\..\Common\src\Core.Common.Version\Core.Common.Version.csproj">
       <Project>{c90b77da-e421-43cc-b82e-529651bc21ac}</Project>
       <Name>Core.Common.Version</Name>
Index: Core/Plugins/src/Core.Plugins.ProjectExplorer/ProjectExplorer.cs
===================================================================
diff -u -r4512af7782ee31b36941bb280b54d9da2953dd71 -r1fd75ff6e5e3593bdf2c875a1dc107b22b482418
--- Core/Plugins/src/Core.Plugins.ProjectExplorer/ProjectExplorer.cs	(.../ProjectExplorer.cs)	(revision 4512af7782ee31b36941bb280b54d9da2953dd71)
+++ Core/Plugins/src/Core.Plugins.ProjectExplorer/ProjectExplorer.cs	(.../ProjectExplorer.cs)	(revision 1fd75ff6e5e3593bdf2c875a1dc107b22b482418)
@@ -26,6 +26,7 @@
 using Core.Common.Gui.Commands;
 using Core.Common.Gui.Forms;
 using Core.Common.Gui.Selection;
+using Core.Common.Utils.Events;
 using Core.Plugins.ProjectExplorer.Properties;
 
 namespace Core.Plugins.ProjectExplorer
@@ -152,9 +153,9 @@
             viewCommands.OpenViewForSelection();
         }
 
-        private void TreeViewControlDataDeleted(object sender, TreeNodeDataDeletedEventArgs e)
+        private void TreeViewControlDataDeleted(object sender, EventArgs<object> e)
         {
-            viewCommands.RemoveAllViewsForItem(e.DeletedDataInstance);
+            viewCommands.RemoveAllViewsForItem(e.Value);
         }
 
         private void GuiSelectionChanged(object sender, EventArgs e)