How to toggle a checkbox editor with a single click when EditorShowModue = MouseUp

Hello,
In order to have the entire content of a cell selected when clicking in a grid, the gridView.OptionsBehavior property must be set to MouseUp, as it is described in A277 KB article - http://devexpress.com/Support/Center/KB/p/A277.aspx.
However, this creates some problems when having CheckEdit repositories because the user has to click twice to toggle the check edit (one click activates the editor and the second click toggles the repository's value).
To overcome this, I have successfully implemented the solution described in the following KB: http://www.devexpress.com/Support/Center/p/Q143431.aspx
But this KB only covers the case in which the CheckEdit repository is set via ColumnEdit property.
How to implement this for a TreeList control?
Thank you very much!
Sorin.

Hi Sorin,
In the case of the TreeList you can utilize the same approach as with the GridControl.

C#
private void treeList1_MouseDown(object sender, MouseEventArgs e)  
        {  
            if ((Control.ModifierKeys & Keys.Control) != Keys.Control)  
            {  
                TreeList list = sender as TreeList;  
                TreeListHitInfo hi = list.CalcHitInfo(e.Location);  
                if (hi.HitInfoType == HitInfoType.Cell)  
                {  
                    list.FocusedNode = hi.Node;  
                    list.FocusedColumn = hi.Column;  
                    list.ShowEditor();  
                    CheckEdit edit = (list.ActiveEditor as CheckEdit);  
                    if (edit != null)  
                        edit.Toggle();  
                }  
            }  
        }  

I have created a sample that demonstrates this approach.
Thanks,
Gosha