Eric,

You shouldn't need to do anything special other than test for the "Edit" mode in the oContextMenu_Popup eventhandler (and then don't create the popup menu items). Are you doing this and it's not working?

~~Bonnie


>Hi Bonnie
>
>Thanks for your answer. It is almost working all correctly now!
>
>The only thing is that I don't want the context menu to be displayed if it is not in "Edit" mode. In my previous, I had a check on that.
>I have replaced my complete MouseUp event handler with the setting of the treeview's ContextMenu property and with this event to be sure that the correct node is selected:
>
>

Private Sub tvwSecurite_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles tvwSecurite.MouseDown
>    If e.Button = MouseButtons.Right Then
>        tvwSecurite.SelectedNode = tvwSecurite.GetNodeAt(e.X, e.Y)
>    End If
>End Sub
>

>
>
>Where can I cancel the click now if the user is not in edit mode?
>
>
>
>>Eric,
>>
>>You don't really have to mess with clicks and other mouse events to display and capture ContextMenus. I think that is what's causing you problems (although I haven't used a TreeView with checkboxes in it, but I doubt that this is the problem). I'm sorry to have to post this in C# rather than VB, but I tried to use the C#-to-VB converters and they didn't particularly like the way C# does delegates and event handlers. I hope you can figure it out:
>>
>>

>>// Set the Tree's ContextMenu
>>this.oTree.ContextMenu = this.oContextMenu
>>
>>// Set the ContextMenu Popup event handler
>>this.oContextMenu.Popup += new System.EventHandler(this.oContextMenu_Popup);
>>
>>private void oContextMenu_Popup(object sender, System.EventArgs e)
>>{
>>  this.oContextMenu.MenuItems.Clear();
>>  MenuItem oItem;
>>
>>  // Create all the appropriate ContextMenu items. This can vary
>>  // depending on which node in the TreeView was clicked. I have a Node class
>>  // defined in the control that adds additional functionality to the TreeNode class,
>>  // so I can tell which type of Node has been selected
>>  MyTreeNode node = (MyTreeNode)this.oTree.SelectedNode;
>>  if (node.IsTypeOne)
>>  {
>>    // Create one type of context menu
>>    oItem = new MenuItem("Text For Type One");
>>    oItem.Click += new System.EventHandler(this.oMenu_Handler);
>>    this.oContextMenu.MenuItems.Add(oItem);
>>  }
>>  else if (node.IsTypeTwo)
>>  {
>>    // Create another type of context menu
>>    oItem = new MenuItem("Text For Type Two");
>>    oItem.Click += new System.EventHandler(this.oMenu_Handler);
>>    this.oContextMenu.MenuItems.Add(oItem);
>>  }
>>}
>>
>>private void oMenu_Handler(object sender, System.EventArgs e)
>>{
>>  MenuItem oItem = (MenuItem)sender;
>>
>>  // Process whichever ContextMenu item was selected
>>  if (item.Text == "Text For Type One")
>>    // code to process type one
>>  else if (item.Text == "Text For Type Two")
>>    // code to process type two
>>}
>>

>>
>>~~Bonnie