Override ASP.NET forms authentication for a single page

Question

In our ASP.NET MVC application, we automatically redirect users to a log-on page via the section of when they

Answer 1

The following solution works, although I'm not at all sure it's optimal:

public class HttpAuthenticationRequiredResult : ActionResult
{
    public override void ExecuteResult(ControllerContext context)
    {
        var response = context.HttpContext.Response;
        response.StatusCode = 401;
        response.AddHeader("WWW-Authenticate", "Basic realm=\"whatever\"");
        response.Flush();
        response.Close();
    }
}

You can then return the above result instead of an HttpUnauthorizedResult to generate the required 401 code. This feels quite klugy to me, however.