Cutting Edge: Modal dialog boxes with ASP.NET AJAX
Dialog boxes have been around in Windows for a long time, and they do have their advantages. But if you want your Web application to have dialog boxes, you're basically stuck with popups, and, as you know, most users disable them with popup blockers. So what are you to do if you need a popup dialog?
In the Launch issue of MSDN Magazine, Dino Esposito shows you how setting up a modal popup using the AJAX Control Toolkit library is a relatively simple task.
You can browse the code online, or grab the entire download
For more about ASP.NET AJAX development, check out the previous installments of Cutting Edge as well as other articles in the MSDN Magazine archives.