Oh then we have better know it. Could you illustrate it please? Thanks.

Please check http://bytes.com/topic/asp-net/answe...ew-detailsview. You may find the solution.

Most of the times we wish to disable the asp.net button control just after the first click so that we may prevent multiple postbacks. This is sensitive work since multiple posting may cause multiple transactions and bring about problems. So we need a proper solution.
One solution would be to catch the click event from client side scripting and immediately disable the button. But this approach has the problem that the server side event won't...

If you are making ajax calls from a page, you can just get the response after successful call and render it as you wish without refreshing the whole page.