Over the past several years web developers have started using JavaScript to make asynchronous postbacks to the web server that only transmit and receive the necessary data; these techniques are commonly referred to as AJAX. When properly implemented, AJAX-enabled web applications offer a highly interactive user interface whose responsiveness rivals that of desktop applications. Popular web applications like the social networking news site Digg and GMail are prime examples of AJAX techniques in action.
Since AJAX involves many disparate technologies at different layers in the networking stack, implementing AJAX without the use of an AJAX framework is difficult and error-prone. Fortunately, Microsoft has released a free AJAX framework for ASP.NET developers: Microsoft ASP.NET AJAX. This article is the first in a series of articles that examines the ASP.NET AJAX framework. This installment provides an overview of AJAX technologies and looks at getting started with Microsoft's framework. Future installments will focus on specific controls and scenarios. Read on to learn more!
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