I extend from treepanel and set loader in the constructor
the object that i set in treepanel is correct!
it works good in a first run! but when i close the treepanel and start another treepanel it uses last treeloader
but I checked that the program set the correct loader in the tree! but i don't know what happens that it uses last treeloader!!!!!!!
I set treeloader in initComponent in this way:
the actual problem is item_id in the codes are different and alsa item_id will poss to it in a correct way
i logged this.loader with console.log and I sawed item_id is correct! but when it request to the server it sends last item_id not the item_id that assigned to it