ASP.NET MVC - What does IsAjaxRequest() actually mean?

Question

I had previously created a method on my base controller:

public bool IsJsonRequest()
{
    var acceptTypes = Request.AcceptTypes;
    return acceptTypes != n         


        

Answer 1

It checks for the X-Requested-With (HTTP_X_REQUESTED_WITH) header being set to XMLHttpRequest. This header is set by jQuery and a number of other javascript frameworks when making AJAX requests.