actionscript 3 - Manipulate data object in a itemrenderer - Adobe Flex 4 -

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i have simple itemrenderer following code:

<?xml version="1.0" encoding="utf-8"?> <s:itemrenderer xmlns:fx="http://ns.adobe.com/mxml/2009"  xmlns:s="library://ns.adobe.com/flex/spark"  xmlns:mx="library://ns.adobe.com/flex/mx"  autodrawbackground="true" width="90" height="90"> <s:vgroup horizontalalign="center">  <mx:image source="{data.photo}" tooltip="{data.name}" /> </s:vgroup> </s:itemrenderer>

i manipulate data object before it's binded image attributes (source , tooltip). this, modified code in way:

<?xml version="1.0" encoding="utf-8"?> <s:itemrenderer xmlns:fx="http://ns.adobe.com/mxml/2009"  xmlns:s="library://ns.adobe.com/flex/spark"  xmlns:mx="library://ns.adobe.com/flex/mx"  autodrawbackground="true" width="90" height="90" initialize="itemrenderer1_initializehandler(event)">  <fx:script>  <![cdata[  import mx.events.flexevent;    protected function itemrenderer1_initializehandler(event:flexevent):void   {     var obj:object = this.data;     //here manipulation   }   ]]>  </fx:script>  <s:vgroup horizontalalign="center">  <mx:image source="{data.photo}" tooltip="{data.name}" />  </s:vgroup> </s:itemrenderer>

when try access this.data object, it's empty! there way manipulate data object before binding? don't have use this.data, cannot find other object edit

another solution override set data function, this:

<?xml version="1.0" encoding="utf-8"?> <s:itemrenderer xmlns:fx="http://ns.adobe.com/mxml/2009"              xmlns:s="library://ns.adobe.com/flex/spark"              xmlns:mx="library://ns.adobe.com/flex/mx"              autodrawbackground="true" width="90" height="90"            creationcomplete="itemrenderer1_creationcompletehandler(event)"             > <fx:script>     <![cdata[         import mx.events.flexevent;         import valueobjects.product;         [bindable]         private var prd:product;          override public function set data(value:object):void         {            super.data = value;            //here can access this.data object!            this.prd = this.data product;         }      ]]> </fx:script> <s:vgroup horizontalalign="center">     <mx:image source="{prd.photo}" tooltip="{prd.name}" width="70" />     <mx:label text="{prd.name}"/> </s:vgroup>


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