      *  data provider and pass the items to the renderers.
      *  At the end of any sequence of code, it must always
      *  be positioned at the top-most visible item being displayed.
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion Flex 3
      */
     public var iterator:IViewCursor;
 

    /**
     *  The layer in the content defined by the <code>:istbase.listContent</code> property 
     *  where all selection and highlight indicators are drawn.
     */
    public var selectionLayer:Sprite;


 *  alternating row colors can show through the control.
 *
 *  @see mx.controls.listClasses.ListBase
 *  
 *  @langversion 3.0
 *  @playerversion Flash 9
 *  @playerversion AIR 1.1
 *  @productversion Flex 3
 */
public class ListBaseContentHolder extends UIComponent
{
