.NET news » Ajax

The release everyone has been waiting for is here! ASP.NET AJAX is a free framework for quickly creating a new generation of more efficient, more interactive and highly-personalized Web experiences.

Unveiled at the Microsoft Professional Developers Conference in September 2005, Microsoft ASP.NET AJAX (formerly referred to as "Atlas") adds many new capabilities to ASP.NET 2.0, all of which are geared towards making it easy to add AJAX-based functionality to your Web sites. In this month's column, I examine ASP.NET AJAX, looking closely at some of its key features. This column assumes you have at least some degree of familiarity with the basic concepts and tools..

The popularity of Web applications that use AJAX (Asynchronous JavaScript And XML) technology has increased steadily over the past year. When written correctly, AJAX can yield significant improvements in performance and user experience compared with non-AJAX Web applications. However, because AJAX Web applications work asynchronously, traditional synchronous test automation techniques generally don't work. In this month's column, I present a technique that allows you to write lightweight test automation to verify the functionality of AJAX Web applications.

A progress indicator control that works in a modal popup style.

Build a start page similar to Google IG in 7 nights using ASP.Net Ajax, .NET 3.0, Linq, DLinq and XLinq.

Performance tips and hard-core tricks that change core runtimes, not for the faint hearted.

The popularity of Web applications that use AJAX (Asynchronous JavaScript And XML) technology has increased steadily over the past year. When written correctly, AJAX can yield significant improvements in performance and user experience compared with non-AJAX Web applications. However, because AJAX Web applications work asynchronously, traditional synchronous test automation techniques generally don't work. In this month's column, I present a technique that allows you to write lightweight test automation to verify the functionality of AJAX Web applications.

Microsoft ASP.NET AJAX (formerly referred to as "Atlas") adds many new capabilities to ASP.NET 2.0, all of which are geared towards making it easy to add AJAX-based functionality to your Web sites. In this month's column, I examine ASP.NET AJAX, looking closely at some of its key features..

In this article I'll walk through what happens in the browser when an UpdatePanel updates. You'll see what events are fired, what intervention points there are where you can intercept the action, and generally get a feel for the sequence of events. The UpdatePanel is one of the coolest features of Microsoft's ASP.NET AJAX. It magically lets you enhance your web sites with AJAX goodness, with very little cost to you as a developer. If you are like me though, you'll be feeling just a little bit uncomfortable simply dragging the UpdatePanel onto your web form, and then letting it do its stuff. We want to understand what it is doing on our behalf.

The PopupControl extender is a way to render a server control popup to the user, so that the user can perform some action (say click on a textbox), the user selects a value in a control that dynamically appears, and that value is posted back to the originating server control. As an example, this can be a calendar control that pops up for the user, which when selecting a value, the value is posted back to a textbox and the date is entered.