访问DataGrid中组件的属性.

如何访问DataGrid中控件的属性呢？ 这个问题问了好多地方，一直感觉一定有个类似C#中的findControl的方法，终于有了答案~来自AS3天地会。

<mx:DataGrid id="musicList" width="100%" textAlign="center" dataProvider="{myFavorite}" bottom="9" top="0">
                          <mx:columns>
                                 <mx:DataGridColumn headerText="操作">
                                        <mx:itemRenderer>
                                               <mx:Component>
                                                      <mx:HBox horizontalAlign="center">
                                                             <mx:Button id="bt1" styleName="localMusicButton" click="parentDocument.dataGridDownLoadButtonClick(event)"/>
                                                             <mx:Button id="bt2" styleName="gdplayButton" click="parentDocument.dataGridButtonClick(event)"/>
                                                      </mx:HBox>
                                               </mx:Component>
                                        </mx:itemRenderer>
                                 </mx:DataGridColumn>                               
                                <mx:DataGridColumn headerText="歌名" dataField="songName"/>
                                  </mx:columns>
                   </mx:DataGrid>

我想访问id为bt1的Button的属性，怎么做呢？

解决方法：

musicList.indexToItemRenderer(musicList.selectedIndex).document.bt1