In ASP.Net MVC is it possible to use either Redirect
or RedirectToAction
to call for example a 303开发者_JS百科 error?
I am working my way through a book titled "ASP.NET MVC 1.0 Website Programming" and the source is making calls such as return this.Redirect(303, FormsAuthentication.DefaultUrl);
but this call only functions with an external library, I would like to have the same functionality sans the add-on if possible.
You can create custom ActionResults that mimic any http response code you'd like. By returning those action results, you can easily perform a 303.
I found this quick write-up that you should be able to follow easily.
Here's what I came up with based on the advice given in the current answers and the decompiled System.Web.Mvc.RedirectResult
code:
public class SeeOtherRedirectResult : ActionResult
{
public string Url { get; private set; }
public HttpStatusCode StatusCode { get; private set; }
public SeeOtherRedirectResult(string url, HttpStatusCode statusCode)
{
if (String.IsNullOrEmpty(url))
{
throw new ArgumentException("URL can't be null or empty");
}
if ((int) statusCode < 300 || (int) statusCode > 399)
{
throw new ArgumentOutOfRangeException("statusCode",
"Redirection status code must be in the 3xx range");
}
Url = url;
StatusCode = statusCode;
}
public override void ExecuteResult(ControllerContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (context.IsChildAction)
{
throw new InvalidOperationException("Cannot redirect in child action");
}
context.Controller.TempData.Keep();
context.HttpContext.Response.StatusCode = (int) StatusCode;
context.HttpContext.Response.RedirectLocation =
UrlHelper.GenerateContentUrl(Url, context.HttpContext);
}
}
2 ways about this-
Response.Redirect(url, false); //status at this point is 302
Response.StatusCode = 303;
-or-
Response.RedirectLocation = url;
Response.StatusCode = 303;
Note that in the first redirect, that the false parameter avoids the threadAbort exception that the redirect(url) normally throws. This is one good reason to use one of these 2 methods.
You could also accomplish it with a custom ActionFilter like I mention here. I for one like the ActionFilter a bit more the the ActionResult.
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