Fire bindable event during value setting

           
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
  <mx:Script>
    
    import flash.events.Event;
    [Bindable(event="myValueChanged")]
    private function isEnabled():String {
      if (myValue)
        return 'true';
      else
        return 'false';
    }
    private var _myValue:Boolean = false;
    public function set myValue(value:Boolean):void {
      _myValue = value;
      dispatchEvent(new Event("myValueChanged"));
    }
    public function get myValue():Boolean {
      return _myValue;
    }
  </mx:Script>
  <mx:TextArea id="myTA" text="{isEnabled()}" />
  <mx:Button label="Clear MyFlag" click="myValue=false;" />
  <mx:Button label="Set MyFlag" click="myValue=true;" />
</mx:Application>

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3.	Bindable event and property
4.	Dispatch Bindable event

Fire bindable event during value setting : Bindable Event « Data Model « Flex

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