flash - How would I create a panel on drag drop in flex 4? -

i trying drag component , on drop want create panel. here actionscript have doesn't seem working, ideas why?

private function dragdrop(e:dragevent): void {     var userpanel:panel = new panel();     userpanel.width = 100;     userpanel.height = 100;     userpanel.x = 10;     userpanel.y = 10;     userpanel.visible = true;     addchild(userpanel); } 

the code you've included valid. drag initiator configured correctly? drop target configured accept drag-drop?

here's code add panel canvas1 when canvas2 dragged canvas1:

protected function canvas2_dragstarthandler(event:mouseevent):void {     var draginitiator:canvas=canvas(event.currenttarget);     var ds:dragsource = new dragsource();                    dragmanager.dodrag(draginitiator, ds, event); }  protected function canvas1_dragenterhandler(event:dragevent):void {     dragmanager.acceptdragdrop(canvas(event.currenttarget)); }  protected function canvas1_dragdrophandler(event:dragevent):void {     var userpanel:panel = new panel();     userpanel.width = 100;     userpanel.height = 100;     userpanel.x = 10;     userpanel.y = 10;     userpanel.visible = true;     canvas(event.currenttarget).addchild(userpanel); }