How do you perform a 302 redirect using MVC3 and ASP.Net?

Question

I'm using Razor, HTML5, MVC3 with C# in an application, where after a user clicks on a link, I open a new window, do some processing, then want to redirect that window with a 302 status code to a link.

Thanks.

Answer 1

The correct way to do this in ASP.NET MVC is by having a controller action that returns a redirect ActionResult. So inside the controller action you are invoking in this window and doing the processing simply perform a redirect by returning a proper ActionResult:

public ActionResult Foo()
{
    // ... some processing
    return RedirectToAction("SomeAction", "SomeController");
}

When the Foo action is invoked (presumably inside the new window) it will do the processing and return a 302 HTTP status code to the client with a new location of /SomeController/SomeAction.

If you wanted to redirect to some external url of your application you could do the following:

public ActionResult Foo()
{
    // ... some processing
    return Redirect("http://someotherdomain.com/somescript");
}

As far as creating a link that will open in a new window/tab is concerned you could append the target="_blank" attribute on the anchor:

@Html.ActionLink(
    "Some link",                 // linkText
    "Foo",                       // action
    "SomeController",            // controller
    null,                        // routeValues
    new { target = "_blank" }    // htmlAttributes
)