Levi Fleischman's Blog

Out of the box, ExtJS expects to send and receive data in a very specific format. Since our customer had an API intended to serve multiple different clients this wasn't practical. By writing custom LoadJson and SubmitJson actions, we were able to centralize this custom logic without the need to configure a redundant JsonReader, JsonWriter and Ajax.request() for each form.

A particularly overlooked and, for its simplicity, useful feature of ASP.NET AJAX is the WebMethod, which is a server-side method that can be called by client script. The .NET compiler automatically adds client-side methods that take care of the AJAX request, JSON encoding and, to a degree, data type conversion. Sure, you COULD do this using a web service and XmlHttpRequest - but this is a quick-and-easy way of AJAX-enabling standard web form pages.

Microsoft has a long history of misnamed and mis-marketed developer tools. My favorite example is .NET, a relatively simple concept complicated by an initial decision to attach the label to Microsoft's upcoming generation of servers (e.g., "Windows .NET Server 2003"). The latest blunder is ASP.NET AJAX, a useful suite of technologies only partially related to "AJAX" development. Unfortunately, as a result of this some of the more useful aspects of the technology have been overlooked.