      *  @playerversion AIR 1.5
      *  @productversion Flex 4.5
      */
-    public function get dataTipField():IFactory
+    public function get dataTipField():String
     {
         return getGridProperty("dataTipField");
     }

     *  @playerversion AIR 1.5
     *  @productversion Flex 4.5
     */
    public function get dataTipFunction():IFactory
    {
        return getGridProperty("dataTipFunction");
    }

    /**
     *  @private
     */
    public function set dataTipField(value:String):void
    {
        if (setGridProperty("dataTipField", value))
            dispatchChangeEvent("dataTipFieldChanged");
