Summary

The ASP.NET AJAX Toolkit makes it easy to add rich animations and interactivity to a web application. In addition to being able to use the UpdatePanel control to enable asynchronous updates of page content, you can use the UpdatePanelAnimation to show the user that background processing is occurring. The Toolkit helps blur the distinction between desktop applications and web applications. Modal dialogs and pop-up dialogs start to push the web application beyond what the user expects from working in the browser.