http://snipplr.com/users/bryanlyman/tags/thread Recent snippets posted on Snipplr.com en-us Sun, 26 May 2013 12:22:43 GMT http://snipplr.com/view/28142/asynchronous-aspnet-pages-ajax-helper-webrequest-passthrough/ .net 3.0+, Ajax calls allow for true asynchronous communication through a browser. You may not notice it until you have a server call that takes awhile, but just because AJAX is allowing it, that doesn't mean the server is acting in a truly asynchronous manner. By default aspx pages will asynchronously allow multiple calls to the same session, however, a thread-lock is placed on each subsequent call so that each incoming request must wait for the previous to finish before the response stream can be accessed. This is a nice protection measure to keep a page programmer from ripping their hair out because of multi-threading data access issues and dead-lock scenarios; but it is inversely annoying to one trying to allow asynchronicity. The solution to allow true multi-threaded asynchronous behavior isn't an easy one, but the following code is a step in the right direction. The first thing you should know is that to make a page act asynchronously is to set the "Async" attribute in the page directive of the aspx page being called

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