      *  then this property has no effect.
      * 
      *  @default -1
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     public function get requestedColumnCount():int
     {

     * 
     *  @see firstIndexInView
     *  @see lastIndexInview
     */
    protected function setIndexInView(firstIndex:int, lastIndex:int):void
    {

    *  scroll position.
    *  
    *  @see setIndexInView
    *  
    *  @langversion 3.0
    *  @playerversion Flash 10
    *  @playerversion AIR 1.5
    *  @productversion Flex 4
    */
    override protected function scrollPositionChanged():void
    {
