Free Download - SharePoint Ajax Library for SharePoint 2010 – SharePoint AJAX Toolkit

This is a base framework built on top of the Microsoft AJAX Library and ASP.NET AJAX for deploying client-side AJAX Web Parts and controls that work against web services and Xml feeds utilizing the ASP.NET AJAX framework.
Project dependencies: .NET 3.5 SP1.

Note: This project DOES NOT provide any support for working with the "Ajax Control Toolkit".

 

For More Detail and downloading the code, Please go through the following link.

 

How to Download:

http://sharepointajax.codeplex.com/