Matt Gibbs & Bertrand Le Roy 
ASP.NET AJAX UpdatePanel Control [PDF ebook] 

This newly revised Short Cut teaches you how to build richer and more interactive Ajax-style web pages using ASP.NET AJAX, Microsoft’s Ajax framework for ASP.NET 2.0. The ASP.NET AJAX Update Panel control is key to building ASP.NET 2.0 applications more responsive to user input and in this tutorial, you’ll learn how to use it from the Microsoft experts: Bertrand Le Roy, Update Panel control’s architect and developer, and Matt Gibbs, ASP.NET AJAX dev team manager.Completely revised for the Version 1.0 release of ASP.NET AJAX, this Short Cut teaches you what you need to know to make Update Panel part of your application pages. You’ll also learn how to use the control to improve the performance of an ASP.NET Wizard control; create a better master/details page for the Adventure Works database; and add a pop-up preview to a search page. Finally, you’ll learn how to display Update Panel error messages and deal with its quirks and limitations. And all of the example code is available for free download. In short, this PDF has exactly what you need to begin adding the interactivity of AJAX to your ASP.NET 2.0 applications today.