Flex 的getChildren()方法

flex Container 类的getChildren方法只能得到调用对象的子对象
例如flex结构

     < mx:VBox  id ="uploadbox" >        
          < mx:HBox  id ="file1"  paddingTop ="10" >
                 < mx:ProgressBar  id ="bar1"  visible ="true"
                    labelPlacement ="center"  
                    minimum ="0"  maximum ="100"
                    label ="当前进度: 0%"
                    direction ="right"
                    mode ="manual"  width ="308"   height ="27"   />
                    < mx:Button  label ="上传"  height ="27"   click ="upload(event);"  x ="320"  y ="10" />
         mx:HBox >
         ......  // 此处省略若干HBox
     mx:VBox >
    

代码程序

        var hboxChild:Array = uploadbox.getChildren();
                
                for(var i:int=0;i < hboxChild .length;i++)
                {
                    trace("hboxChild.name = "+(hboxChild[i] as DisplayObject).name);
                }

结果如下

hboxChild.name= file1            //如果没有设置name属性，则name = id
hboxChild.name= hb_5
hboxChild.name= hb_6
hboxChild.name= hb_7
hboxChild.name= hb_8
hboxChild.name= hb_9