文件浏览器

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
 <mx:Script>
  <![CDATA[
   import flash.filesystem.File;
  ]]>
 </mx:Script>
 <mx:Panel x="10" y="0" width="800" height="600" layout="absolute">
  <mx:VBox x="10" y="0" height="100%" width="536">
   <mx:HBox width="100%" height="122">
    <!-- -->
    <mx:FileSystemComboBox id="filecmb" directory="{filedg.directory}" directoryChange="filedg.directory = filecmb.directory;"/>
    <!-- -->
    <mx:Button id="btnBack" label="后退" click="filedg.directory = filecmb.directory.parent;"/>
   </mx:HBox>
  </mx:VBox>
  <mx:FileSystemDataGrid id="filedg" x="10" y="146" width="536" height="224" directory="{new File('c:/')}"/>
 </mx:Panel>
 
</mx:WindowedApplication>