Bind TextInput to Text
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <mx:VBox> <mx:Text id="output" text="{input.text}" width="200" height="200" /> <mx:TextInput id="input" /> </mx:VBox> </mx:Application>