FLEX select list item on contextmenu popup (right mouseclick)

  private function onActivateMenu( event : ContextMenuEvent ) : void

{

var p:Point = this.localToGlobal(new Point(mouseX, mouseY));

var r:IListItemRenderer = getItemAt(mouseX, mouseY, p.x, p.y);

 if (r && r.data)

this.selectedIndex = users.getItemIndex((r.data as TGYUser));

}

package

{

import flash.display.InteractiveObject;

import flash.events.MouseEvent;

public class exMouseEvent extends MouseEvent

{

private var _stageX : Number;

private var _stageY : Number;

private var _target : Object;

public function exMouseEvent(type:String, target: Object, bubbles:Boolean=true, cancelable:Boolean=false, localX:Number=0, localY:Number=0, stageX:Number=0, stageY:Number=0, relatedObject:InteractiveObject=null, ctrlKey:Boolean=false, altKey:Boolean=false, shiftKey:Boolean=false, buttonDown:Boolean=false, delta:int=0)

{

_stageX = stageX;

_stageY = stageY;

_target = target;

super(type, bubbles, cancelable, localX, localY, relatedObject, ctrlKey, altKey, shiftKey, buttonDown, delta);

}

        override public function get target() : Object

        {

            return _target;

        }

        override public function get stageY() : Number

        {

            return _stageY;

        }

        override public function get stageX() : Number

        {

            return _stageX;

        }

}

}

package

{

import mx.controls.List;

import flash.events.MouseEvent;

import mx.controls.listClasses.IListItemRenderer;

public class exList extends List

{

public function exList()

{

super();

}

public function getItemAt(_mx:Number, _my:Number, _x:Number, _y:Number) : IListItemRenderer

{

var item:IListItemRenderer = super.mouseEventToItemRenderer( new exMouseEvent(MouseEvent.CLICK, listContent, true, false, _mx, _my, _x, _y) );

return item;

}

        

}

}