Well I got many mails to know about my previous posting  .Here is the small steps involve.

Step1:
Give reference ajax.dll in your project

Step 2:
Write Server side code which update the database using AJAX
Like
[Ajax.AjaxMethod]
public void UpdateDB(string ID)
{
   //Write your C# code to update DB
}

Step 3:
Register ajax on your page load or Prerender
Ajax.Utility.RegisterTypeForAjax(typeof(UpdateDB));

Step 4:
Write javsctipt code which call this server side methods

I might explain it later ;)

Brilliant but lazy.

Suresh Behera