Label not getting refreshed when working with UpdatePanel

Hi, 

Based on the article http://www.aspsnippets.com/Articles/GridView---Add-Edit-Update-Delete-and-Paging-the-AJAX-way.aspx

 I have an extra asp.net label to show success or error message after the add, update or delete a row, 

but using the BlockUI, I am unable to do it, cause the label is somehow not refresh even if i put it under the BlockUI. Please help.. Thanks.