         dispatchChangeEvent("selectionModeChanged");
     }
     
+    /**
+     *  @private
+     */
     mx_internal function isRowSelectionMode():Boolean
     {
         const mode:String = selectionMode;
         return mode == GridSelectionMode.SINGLE_ROW || mode == GridSelectionMode.MULTIPLE_ROWS;
     }
     
+    /**
+     *  @private
+     */
     mx_internal function isCellSelectionMode():Boolean
     {
         const mode:String = selectionMode;        

 *  
 *  @langversion 3.0
 *  @playerversion Flash 10
 *  @playerversion AIR 1.5
 *  @productversion Flex 4
 */ 
[Style(name="verticalScrollPolicy", type="String", inherit="no", enumeration="off,on,auto")]


    private var gridProperties:Object = new Object();
    
    /**
     *  @private
     *  The default values of the grid skin part properties covered by DataGrid.
     */
    private static const gridPropertyDefaults:Object = {
