<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" initialize="init()">
<mx:Script>
<![CDATA[
import mx.controls.TextInput;
import mx.containers.FormItem;
private function init():void {
var formItem:FormItem = new FormItem();
formItem.label = "FormItem1";
var textInput:TextInput = new TextInput();
formItem.addChild(textInput);
myForm.addChild(formItem);
}
]]>
</mx:Script>
<mx:Form id="myForm">
<mx:FormHeading label="My Form"/>
</mx:Form>
</mx:Application>