Cool Free ASP.NET AJAX Rich Text Editor

Kannan Sundarajan has written Rich Text Editor control using ASP.NET AJAX and shared it under the MS-PL license on CodePlex. It has a very rich feature set and Kannan hopes to enhance it further in the future. Since it is a CodePlex project you can report issues and make feature requests.
Check out the live demo [...]

Highslide JS .NET

Highslide JS .NET is a .NET control to encapsulate the functionality of Torstein Honsi’s excellent Highslide JS library.
Highslide JS is an open source JavaScript software, offering a Web 2.0 approach to popup windows. It streamlines the use of thumbnail images and HTML popups on web pages. The library offers these features and advantages:

No plugins [...]

Why ASP.NET AJAX UpdatePanels are dangerous

Using Web methods instead full post backs…
Web methods allow ASP.NET AJAX pages to directly execute a page’s static methods, using JSON (JavaScript Object Notation). JSON is basically a minimalistic version of SOAP, which is perfectly suited for light weight communication between client and server. For more information about how to implement web methods and JSON, [...]

Are you making these 3 common ASP.NET AJAX mistakes?

Check out Dave Wards advice on Update Panels and Postabacks HERE
In this post, I’d like to point out a few of the problems I’ve seen developers running into and what you can keep in mind to avoid them:

Page events still fire during partial postbacks.
UpdatePanel events fire, even when not updating.
Control event handlers fire after [...]