/// <summary>
 /// Occurs when the tree view control is entered.  
 /// </summary>
 /// <param name="sender">The source TreeView object for this event.</param>
 /// <param name="e">The EventArgs object that contains the event data.</param>
 private void codeTreeView_Enter(object sender, EventArgs e)
 {
     try
     {
         // Make sure the selected element in the outline window is also selected in the text window.
         CodeElementWrapper codeElement = _control.VisibleTreeView.SelectedNode as CodeElementWrapper;
         _editSupport = new EditorSupport();
         _editSupport.GoToCodeElement(codeElement, _dte);
     }
     catch (Exception ex)
     {
         SourceOutliner.DisplayMessage(Resources.ErrorPrefix, "codeTreeView_Enter exception: " + ex.ToString());
     }
 }
 /// <summary>
 /// Occurs after the tree node is selected.   
 /// </summary>
 /// <param name="sender">The source TreeView object for this event.</param>
 /// <param name="e">The TreeViewEventArgs object that contains the event data.</param>
 private void codeTreeView_AfterSelect(object sender, TreeViewEventArgs e)
 {
     try
     {
         if ((e.Action == TreeViewAction.ByKeyboard) || (e.Action == TreeViewAction.ByMouse))
         {
             CodeElementWrapper codeElement = e.Node as CodeElementWrapper;
             _editSupport = new EditorSupport();
             _editSupport.GoToCodeElement(codeElement, _dte);
         }
     }
     catch (Exception ex)
     {
         SourceOutliner.DisplayMessage(Resources.ErrorPrefix, "codeTreeView_AfterSelect exception: " + ex.ToString());
     }
 }