<?xml version="1.0" encoding="utf-8"?>
<mx:DataGrid
	xmlns:mx="http://www.adobe.com/2006/mxml">

	<mx:Script>
		<![CDATA[
		//this class was added for a bug that exists in Flex..
		//http://bugs.adobe.com/jira/browse/SDK-9476 and http://www.wietseveenstra.nl/blog/2007/03/27/flex-listbase-scroll-vertically-error/
		// even tho it claims to be fixed but it's not
		//many people on internet have the same issue..especially when updating the Font size at run time..
		//Here is the error that gets thrown
		
		//TypeError: Error #1010: A term is undefined and has no properties.
		//at mx.controls.listClasses::ListBase/mx.controls.listClasses:ListBase::scrollVertically()
		
 			override protected function updateDisplayList(w:Number, h:Number):void {
				var b:Boolean = false;
				if( rendererChanged ) b = true;
				super.updateDisplayList(w, h);
				if( b ) {
					while( rowInfo.length > listItems.length ) rowInfo.pop();
				}
			}
		]]>
    </mx:Script>

</mx:DataGrid>