Default ASP.NET Submit Button

Here are two ways to solve the problem of having multiple textboxes and multiple buttons on a form. Each button corresponds to a textbox. When the user enters something in the textbox and presses the enter key... we want the appropriate button to fire.

http://www.metabuilders.com/Tools/DefaultButtons.aspx
http://weblogs.asp.net/rajbk/archive/2003/12/11/43023.aspx