Index: Core/Common/src/Core.Common.Controls.TreeView/Core.Common.Controls.TreeView.csproj
===================================================================
diff -u -rd7da4fd9051547085f0cbbec790eda9cb8ca7f14 -rcc570ccd4f17971ce651ead28207aae3399919d1
--- Core/Common/src/Core.Common.Controls.TreeView/Core.Common.Controls.TreeView.csproj	(.../Core.Common.Controls.TreeView.csproj)	(revision d7da4fd9051547085f0cbbec790eda9cb8ca7f14)
+++ Core/Common/src/Core.Common.Controls.TreeView/Core.Common.Controls.TreeView.csproj	(.../Core.Common.Controls.TreeView.csproj)	(revision cc570ccd4f17971ce651ead28207aae3399919d1)
@@ -62,7 +62,6 @@
     </Compile>
     <Compile Include="TreeViewController.cs" />
     <Compile Include="TreeViewNodePresenterBase.cs" />
-    <Compile Include="WindowsFormsHelper.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Core.Common.Base\Core.Common.Base.csproj">
Index: Core/Common/src/Core.Common.Controls.TreeView/TreeView.cs
===================================================================
diff -u -r757ac958da1c3c60d1cacca9f515042182c296c1 -rcc570ccd4f17971ce651ead28207aae3399919d1
--- Core/Common/src/Core.Common.Controls.TreeView/TreeView.cs	(.../TreeView.cs)	(revision 757ac958da1c3c60d1cacca9f515042182c296c1)
+++ Core/Common/src/Core.Common.Controls.TreeView/TreeView.cs	(.../TreeView.cs)	(revision cc570ccd4f17971ce651ead28207aae3399919d1)
@@ -803,7 +803,7 @@
 
             DragOperations dragOperation = presenter.CanDrag(sourceNode.Tag);
 
-            DragDropEffects effects = WindowsFormsHelper.ToDragDropEffects(dragOperation);
+            DragDropEffects effects = ToDragDropEffects(dragOperation);
 
             if (effects == DragDropEffects.None)
             {
@@ -856,9 +856,8 @@
             }
 
             ITreeNodePresenter presenter = GetTreeViewNodePresenter(nodeDropTarget.Tag, nodeDropTarget);
-            DragOperations allowedOperations = presenter.CanDrop(nodeDragging.Tag, nodeDragging, nodeDropTarget,
-                                                                 WindowsFormsHelper.ToDragOperation(e.AllowedEffect));
-            e.Effect = WindowsFormsHelper.ToDragDropEffects(allowedOperations);
+            DragOperations allowedOperations = presenter.CanDrop(nodeDragging.Tag, nodeDragging, nodeDropTarget, ToDragOperation(e.AllowedEffect));
+            e.Effect = ToDragDropEffects(allowedOperations);
 
             if (PlaceholderLocation.None == placeholderLocation)
             {
@@ -1027,7 +1026,7 @@
 
             try
             {
-                controller.OnDragDrop(nodeDragging, parentNode, nodeDropTarget, WindowsFormsHelper.ToDragOperation(e.Effect), dropAtLocation);
+                controller.OnDragDrop(nodeDragging, parentNode, nodeDropTarget, ToDragOperation(e.Effect), dropAtLocation);
             }
             catch (Exception ex)
             {
@@ -1103,6 +1102,16 @@
             public static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
         }
 
+        private DragDropEffects ToDragDropEffects(DragOperations operation)
+        {
+            return (DragDropEffects)Enum.Parse(typeof(DragDropEffects), operation.ToString());
+        }
+
+        private DragOperations ToDragOperation(DragDropEffects dragDropEffects)
+        {
+            return (DragOperations)Enum.Parse(typeof(DragOperations), dragDropEffects.ToString());
+        }
+
         /// <summary>
         /// Event arguments to be used in the event that data has been deleted from a <see cref="TreeView"/>.
         /// </summary>
Fisheye: Tag cc570ccd4f17971ce651ead28207aae3399919d1 refers to a dead (removed) revision in file `Core/Common/src/Core.Common.Controls.TreeView/WindowsFormsHelper.cs'.
Fisheye: No comparison available.  Pass `N' to diff?
Index: Core/Common/test/Core.Common.Controls.TreeView.Test/Core.Common.Controls.TreeView.Test.csproj
===================================================================
diff -u -r00c8bc7fed580b4a9820a7d85b3b6d2346599f65 -rcc570ccd4f17971ce651ead28207aae3399919d1
--- Core/Common/test/Core.Common.Controls.TreeView.Test/Core.Common.Controls.TreeView.Test.csproj	(.../Core.Common.Controls.TreeView.Test.csproj)	(revision 00c8bc7fed580b4a9820a7d85b3b6d2346599f65)
+++ Core/Common/test/Core.Common.Controls.TreeView.Test/Core.Common.Controls.TreeView.Test.csproj	(.../Core.Common.Controls.TreeView.Test.csproj)	(revision cc570ccd4f17971ce651ead28207aae3399919d1)
@@ -68,7 +68,6 @@
     <Compile Include="TreeViewControllerTest.cs" />
     <Compile Include="TreeViewNodePresenterBaseTest.cs" />
     <Compile Include="TreeViewTest.cs" />
-    <Compile Include="WindowsFormsHelperTests.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\Core.Common.Base\Core.Common.Base.csproj">
Fisheye: Tag cc570ccd4f17971ce651ead28207aae3399919d1 refers to a dead (removed) revision in file `Core/Common/test/Core.Common.Controls.TreeView.Test/WindowsFormsHelperTests.cs'.
Fisheye: No comparison available.  Pass `N' to diff?