VitNX_TreeView.OnMouseDown Method

protected override void OnMouseDown(MouseEventArgs e)
 {
     if (e.Button == MouseButtons.Left || e.Button == MouseButtons.Right)
     {
         foreach (var node in Nodes)
             CheckNodeClick(node, OffsetMousePosition, e.Button);
     }
 
     base.OnMouseDown(e);
 }