how can I detect if a request is an AJAX-request (from jQuery) on the server-side of a ASP.net application. I don´t want to do this: mypage.aspx?this_is_ajax=true...
ex.
$.get("mypage.aspx");
On the server side I want to do certain things when the request is a ajax request...
Thanks!
ASP.NET MVC had a great extension for this, that did work with JQuery. It checked it this way:
Check the core collection:
request["X-Requested-With"] == "XMLHttpRequest"
Check the headers collection (ensuring its not null):
request.Headers["X-Requested-With"] == "XMLHttpRequest"
It did it as an extension method, so you could recreate it, or use it if you are using ASP.NET MVC through Request.IsAjaxRequest().
来源：https://stackoverflow.com/questions/3441735/detect-ajax-call-asp-net