Bind TextInput to Model
<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:Model id="myModel"> <myModel> <a>{nameInput.text}</a> </myModel> </mx:Model> <mx:Form> <mx:FormItem label="Last Name:"> <mx:TextInput id="nameInput" /> </mx:FormItem> </mx:Form> <mx:Text text="{'Conditional: '+myModel.a}" /> </mx:Application>