AJAX Control Toolkit (maintained by DevExpress)
Update March 2015:
The ASP.NET AJAX Control Toolkit v15.1 is now available!
Get the new installer from DevExpress.com:
If you've used the toolkit in the past, you also know that for quite some time, the project was poorly supported, with an ever growing list of critical issues. Seeing the demand for such a library and considering its current state, we approached Microsoft
and suggested that we help bring the Toolkit back into a dependable and usable state. Needless to say, Microsoft agreed. The good news is that since we took on this responsibility, we've managed to clean up the codebase, introduced improved Visual Studio support,
and fixed nearly 900 bugs.
Download the DevExpress Edition of the AJAX Control Toolkit today, evaluate it in your project and let us know what you think.
Check out these helpful articles:
A great new installer makes the getting started experience much better:
Update September 2014:
The open sourced Ajax Control Toolkit now has a new
owner: DevExpress. Please see the
DevExpress announcement blog post for more details. Stay tuned for more updates coming soon.
The ASP.NET AJAX Control Toolkit is a classic set of ASP.NET WebForms extensions. It has been used in a huge number of existing projects and remains popular till now. The Toolkit contains more than 40 controls, including the HtmlEditor, Accordion,
AutoComplete, Calendar and ColorPicker controls integrated with the Visual Studio design time.
To view an interactive Web site that demonstrates each of the Ajax Control Toolkit controls, visit the
Ajax Control Toolkit Sample Site. The official website for the Ajax Control Toolkit -- which contains reference documentation, tutorials, and answers to
frequently asked questions -- is located at http://www.asp.net/ajaxlibrary/.
.NET 3.5 version is no longer supported in v15.1