How to get MVC action to return 404

Question

I have an action that takes in a string that is used to retrieve some data. If this string results in no data being returned (maybe because it has been deleted), I want to r

Answer 1

None of the above examples worked for me until I added the middle line below:

public ActionResult FourOhFour()
{
    Response.StatusCode = 404;
    Response.TrySkipIisCustomErrors = true; // this line made it work
    return View();
}