Event listener in an ActionScript function in an tag
<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:Script> private function hello():void { textarea1.text="Hello World"; } </mx:Script> <mx:Panel title="My Application" paddingTop="10" paddingBottom="10" paddingLeft="10" paddingRight="10"> <mx:TextArea id="textarea1" /> <mx:Button label="Submit" click="hello();" /> </mx:Panel> </mx:Application>