<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:SocialSecurityValidator source="{ssn}" property="text" trigger="{submitButton}" triggerEvent="click" /> <mx:Text text="Try me:"/> <mx:TextInput id="ssn"/> <mx:Button label="Submit" id="submitButton" /> </mx:Application>