<?xml version="1.0" encoding="utf-8" ?> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"> 
  <mx:Style> 
    Application 
    { 
    font-size:12px; 
    } 
  </mx:Style> 
  <mx:Script> 
    import mx.controls.Alert; 
    import mx.controls.listClasses.ListBaseContentHolder; 
     

    private function handleClick():void 
    { 
      if(txt.text=="") 
      Alert.show("请输入数字1-7(注意:未验证合法性)"); 
      else 
      { 
        var n:int=parseInt(txt.text); 
        //这句是关键代码 
        (mylist.getChildAt(2) as ListBaseContentHolder).listItems[n-1][0].alertBtn(); 
      } 
    } 
  </mx:Script> 
  <mx:Model id="arr"> 
    <root> 
      <item label="按钮1" /> 
      <item label="按钮2" /> 
      <item label="按钮3" /> 
      <item label="按钮4" /> 
      <item label="按钮5" /> 
      <item label="按钮6" /> 
      <item label="按钮7" /> 
      <item label="按钮8" /> 
      <item label="按钮9" /> 
    </root> 
  </mx:Model> 
  <mx:List id="mylist" dataProvider="{arr.item}" width="100"    rowCount="9" leading="0" itemRenderer="MyRenderer" /> 
  <mx:TextInput id="txt" /> 
  <mx:Button label="触发" click="handleClick();" /> 
</mx:Application>

<?xml version="1.0" encoding="utf-8"?> 
<mx:Box xmlns:mx="http://www.adobe.com/2006/mxml" width="100%" height="100%" horizontalGap="0"    
  verticalGap="0" paddingLeft="0" paddingRight="0"    paddingTop="0" paddingBottom="0"> 
  <mx:Script> 
    import mx.controls.Alert; 
     
    public function alertBtn():void 
    { 
    Alert.show("触发了alertBtn(),我是:"+btn.label); 
    } 
  </mx:Script> 
  <mx:Button id="btn" label="{data.label}" width="100%" cornerRadius="0" /> 
</mx:Box>

本文转自 xcf007 51CTO博客，原文链接：http://blog.51cto.com/xcf007/100683，如需转载请自行联系原作者