and tags around Array elements are optional
<?xml version="1.0"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> <mx:List width="150"> <mx:dataProvider> <mx:Number>9</mx:Number> <mx:Number>1</mx:Number> <mx:Number>5</mx:Number> </mx:dataProvider> </mx:List> </mx:Application>