[flexcoders] MouseUP event dont't trigger

[eveyeti]

Hi,
I have an issue on UIComponent, inside this class there is addListener
Listening mouseUp event but it never trigger.

this is my code:

package
{
     import mx.core.UIComponent;
     import mx.controls.Alert;
     import flash.events.MouseEvent;

     public class MiComponente  extends UIComponent
     {
         public function MiComponente(){
             super();
            
this.addEventListener(MouseEvent.MOUSE_UP,onMouseUp,false,0,true);

         }
         public function onMouseUp(evt:MouseEvent):void{
                 Alert.show("it' works!!!!","YEZ");
         }
     }
}