public void SetupItemDataBind()
 {
     if (_owner != null)
     {
         createDataTable();
         IList <DrawingItem> lst = this.Items;
         foreach (DrawingItem di in lst)
         {
             DrawingItem di0 = _owner.GetItemByName(di.Name);
             if (di0 != null)
             {
                 setupDataBind(di, di0);
             }
         }
     }
 }