  *  Dispatched whenever the cursor position is updated.
  *
  *  @eventType mx.events.FlexEvent.CURSOR_UPDATE
+ *  
+ *  @langversion 3.0
+ *  @playerversion Flash 9
+ *  @playerversion AIR 1.1
+ *  @productversion Flex 3
  */
 [Event(name="cursorUpdate", type="mx.events.FlexEvent")]
 

     *  to iterate it.
     * 
     *  @see mx.collections.errors.ItemPendingError
    */
    function seek(bookmark:CursorBookmark, offset:int = 0, prefetch:int = 0):void;
}

     *  this property is <code>true</code>.
     *  If the ICollectionView is empty (length == 0),
     *  this property is <code>true</code>.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1
     *  @productversion Flex 3
     */
    function get beforeFirst():Boolean;

