在Microsoft Visual Web Developer 2008 中添加AJAX Control Toolkit 和好的指导录像
关键是现在VS 2008 已经可以直接建ajax ， 有了这个Toolkit 工具很多小东西就出现了 ，很方便，很强大
You will get a quick overview of the inclusion of ASP.NET AJAX into Visual Studio 2008 (Orcas) and .NET 3.5. This will be demonstrated by using Visual Studio 2008 and the building of web site application.
Presented by Joe Stagner
Duration: 9 minutes, 58 seconds
Date: 15 November 2007
http://www.asp.net/learn/3.5-videos/video-224.aspx
微软官方AJAX Control Toolkit
http://www.codeplex.com/AjaxControlToolkit
