[How Do I:] Use the ASP.NET AJAX NoBot Control?
![[How Do I:] Use the ASP.NET AJAX NoBot Control?](https://sec.ch9.ms/ch9/5e80/3ffb2eeb-ce01-46ab-afc3-dd254b315e80/aspnet26557_512.jpg)
In this video we examine the NumericUpDown extender control from the ASP.NET AJAX Control Toolkit. We see how the NumericUpDown extender adds "up" and "down" buttons to a standard ASP.NET TextBox control. The buttons allow the user to increment or decrement a number, cycle through a list of known values, or call a Web Service to retrieve the next value. In this way the developer can fully control the values the user may submit to a Web application.