This article will serve as an introduction to developing custom server controls, but it is by no means meant for people who do not have a decent understanding of C#.
After reading this article, you will see how easy it is to set up custom Web controls in the new Microsoft .NET platform to consume an XML Web service.
In this article you will have a look at implementing a custom web control. This web control will inherit from the TextBox web control, and will automatically add a required field validator at run-time.