      */
     override protected function itemToUID(data:Object):String
     {
-    	return helper.itemToUID(data);
+        return helper.itemToUID(data);
     }
 
     //--------------------------------------------------------------------------

    mx_internal function openItem(item:File, async:Boolean = true):void
    {
        if (isItemOpen(item))
        	return;

        var children:ArrayCollection =
        	ArrayCollection(dataDescriptor.getChildren(item));

        if (!children || modificationDateHasChanged(item))
        {
            if (async)
      		{
	      		item.addEventListener(FileListEvent.DIRECTORY_LISTING,
	                                  directoryListingHandler);
	            item.getDirectoryListingAsync();
      		}
      		else
      		{
	        	insertChildItems(item, item.getDirectoryListing());
			}
        }
        else
        {
            expandItem(item, true, true);
        	helper.itemsChanged();
        }

     	invalidateList();
     }

    /**


    [Bindable("change")]
    [Bindable("directoryChanged")]
    
    /**
     *  @copy mx.controls.FileSystemList#selectedPaths
     *
