title: Flex arraycollection getitemindex always return -1
body: <p>I'm facing the same problem. Can some explain me with a example? </p>
  
  <p>My code is:</p>
  
  <pre><code>var dataList:ArrayCollection = new ArrayCollection([{name:"alauddn"}, {name:"ansari"}]);
  
  private function getItemInd(event:MouseEvent):void{
  
      var item:Object = new Object();
      item.name = "ansari";
      var ias:int = dataList.getItemIndex(item);
      Alert.show(ias.toString() + ": " + item.name);
  }
  </code></pre>
  
  <p>But it returns "<strong>-1</strong>: </p>