                 ItemExistenceChangedEvent.ITEM_ADD, contentGroup_itemAddedHandler);
             contentGroup.removeEventListener(
                 ItemExistenceChangedEvent.ITEM_REMOVE, contentGroup_itemRemovedHandler);
-            contentGroup.removeEventListener(
-                FlexEvent.CONTENT_CHANGING, contentGroup_contentChangingHandler);
-            contentGroup.removeEventListener(
-                FlexEvent.CONTENT_CHANGED, contentGroup_contentChangedHandler);
         }
     }
     

        // Re-dispatch the event
        dispatchEvent(event);
    }
    
    private function contentGroup_contentChangingHandler(event:FlexEvent):void
    {
        // Re-dispatch the event
        dispatchEvent(event);
    }
    
    private function contentGroup_contentChangedHandler(event:FlexEvent):void
    {
        // Re-dispatch the event
        dispatchEvent(event);
    }
}

}

                ItemExistenceChangedEvent.ITEM_ADD, contentGroup_itemAddedHandler);
            contentGroup.addEventListener(
                ItemExistenceChangedEvent.ITEM_REMOVE, contentGroup_itemRemovedHandler);
            
            if (_placeHolderGroup)
            {
