[flexcoders] Itemrender resize state not working

[Rodrigo Reyes C.]

Hi all. Does anyone knows why this itemRender resize event is not working?
The backgroundColor does work.

<?xml version="1.0" encoding="utf-8"?>
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml"; width="100%" height="50"
mouseOver="over(event)" mouseOut="out(event)" horizontalAlign="center"
verticalAlign="middle">
    <mx:states>
        <mx:State name="grow">
            <mx:SetProperty name="height" value="100"/>
            <mx:SetStyle name="backgroundColor" value="#FAFF64"/>
        </mx:State>
    </mx:states>
    <mx:Script>
        <![CDATA[

        public function over(event:Event):void{
            currentState = 'grow';
        }

        public function out(event:Event):void{
            currentState = '';
        }

        ]]>
    </mx:Script>
    <mx:Button label="Button"/>
</mx:VBox>

Here is the Main App MXML.

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; layout="vertical"
xmlns:ns1="*">
<mx:Script>
    <![CDATA[
        import mx.collections.ArrayCollection;
        import mx.controls.Button;

        [Bindable]
        private var info:Array = [{label: "01"},{label: "02"},{label:
"03"}];

    ]]>
</mx:Script>
    <mx:TileList id="tl" itemRenderer="Test01" dataProvider="{info}"
columnCount="1" width="100%"/>
</mx:Application>