Wrap TextInput in a HBox and put to FormItem
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <mx:Form> <mx:FormItem label="Name"> <mx:HBox> <mx:TextInput id="firstName" /> <mx:TextInput id="lastName" /> </mx:HBox> </mx:FormItem> <mx:FormItem label="Email"> <mx:TextInput id="email" /> </mx:FormItem> <mx:FormItem label=""> <mx:Button label="Submit" /> </mx:FormItem> </mx:Form> </mx:Application>