List컴포넌로 데이터를 넘겼을 경우 생기던 IFlexDisplayObject가 없다는 오류..

List에 데이터를 바인딩할때  IFlexDisplayObject 이벤트 처리인듯 하다...
그때 오류가 정확히 뭐였지?
List(event.target as IFlexDisplayObject) 이런식으로 처리해주면 class가 없다는 warnning 문구는 사라질듯....

아래는 팝업창에서 처리하는 소스 중 IFlexDisplayObject
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<?xml version="1.0" encoding="utf-8"?> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" width="500" height="300" viewSourceURL="srcview/index.html"> <fx:Script> <![CDATA[ import mx.core.IFlexDisplayObject; import mx.managers.PopUpManager; public var count:Number = 0; public function createPopUp():void { var rtw:ResizableTitleWindow = new ResizableTitleWindow(); rtw.title="This is pop up " + count; rtw.height = 100; rtw.width = 170; rtw.x = 50; rtw.y = 10; count++; var st:Label = new Label(); st.text = "This ResizableTitleWindow can be dragged, activated, closed, and resized."; st.top = st.left = st.right = st.bottom = 10; rtw.addEventListener("close", closeHandler); rtw.addElement(st); rtw.setStyle("skinClass", ResizableTitleWindowSkin); PopUpManager.addPopUp(rtw, this, false); } private function closeHandler(event:Event):void { event.target.removeEventListener("close", closeHandler); PopUpManager.removePopUp(event.target as IFlexDisplayObject); } ]]> </fx:Script> <s:layout> <s:VerticalLayout paddingTop="10" horizontalAlign="center"/> </s:layout> <s:Label text="ResizableTitleWindow" fontSize="16" fontWeight="bold" /> <s:Button label="Create Resizable TitleWindow" click="createPopUp();" /> </s:Application> <SPAN id=tx_marker_caret></SPAN>