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POFlex List item renderer
 

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    <p>I have created an item renderer spark list in flex , but i want to call a function on addition of new row in list and not afterwards. I am getting a data object in rendered list in it i am getting the type of data to be displayed in list ie. either text or image. So on addition of new data in list i want a function to be called up in rendered list that checks the type of data received and then it will either create and add an image element or a text element. So the main problem is how i get a function called on addition of data. I have tried events like datachange and added but they keep on calling the function over and over again when we scroll the list but i want the function to be called once only on addition of data and not after wards. Below is the renderer list code , maybe you will get a better idea of what i am trying to do:</p> <pre><code>&lt;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" dataChange="test_add()"&gt; &lt;fx:Script&gt; &lt;![CDATA[ import mx.controls.Alert; public function test_add() : void { Alert.show("type="+data.msg_type); if(data.msg_type=="text"){ //code to create and add new text element to list_row// } if(data.msg_type=="image"){ //code to create and add new image element to list_row// } } ]]&gt; &lt;/fx:Script&gt; &lt;s:Group id="list_row" width="100%" verticalAlign="middle" verticalCenter="0"&gt; &lt;/s:Group&gt; &lt;/s:ItemRenderer&gt; </code></pre> <p>Any help will be highly appreciated. Thanks</p>
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