Detecting IsAjaxRequest() with ASP.NET MVC and JQuery Form Plugin / File Upload

Question

I\'m using the JQuery Form plugin to do a file upload on an ASP.NET MVC application. I\'ve learned that since an iframe is used for file uploads (rather than XMLHttpRequest

Answer 1

As of ASP.NET MVC 2 (and onwards) there is an extension method on the Request.

if (Request.IsAjaxRequest())
{
     // was an ajax request
}

Using a jQuery method such as .load() on a controller method will result in Request.IsAjaxRequest() returning true.