I've recently stumbled across a few blogs that say the ASP.NET Ajax Library is dead, in particular:
Is this generally true, technically and practically?
Calling Web Services with ASP.NET AJAXAll of this can be done without resorting to postback operations. While the ASP.NET AJAX UpdatePanel control provides a simple way to AJAX enable any ASP.NET page, there may be times when you need to dynamically access data on the server without using an UpdatePanel.
AJAX = Asynchronous JavaScript and XML. AJAX is a technique for creating fast and dynamic web pages. AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. This means that it is possible to update parts of a web page, without reloading the whole page.
In AJAX-enabled Web pages, the browser makes an initial request to the server for the page, and then makes subsequent asynchronous requests to Web services for data. The client communication elements are in the form of downloaded proxy classes from the server and the core client-script library.
I've been to Microsoft talks on jQuery, and basically it sounded to me like they expected everyone to use jQuery for client-side-only DOM manipulation and ASP.NET Ajax was still used for it's Ajax components (like UpdatePanel) and as a basis for AJAX into .NET services made with WCF or just back to ASHX or other server code.
From being a component developer that targets ASP.NET, I can tell you that it's very much used by our customers, and we need to support it.
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