Asp.net mvc Bad Request

Question

When using the class HttpStatusCodeResult as a return to a Action, how do I redirect the user to a custom page according to the error?

Answer 1

There are several ways to do this, you can in the action itself identify the error and redirect, you can also use global.asx but I recommend you use web.config to do this.

<configuration>
    <system.web>
        <customErrors mode="On">
          <error statusCode="400" redirect="~/400"/>
        </customErrors>
    </system.web>
</configuration>

Create the route, controller and view for the error page you want to display.

routes.MapRoute(
    "404", 
    "404", 
    new { controller = "Commons", action = "HttpStatus404" }
);

Controller

public ActionResult HttpStatus404()
{
    return View();
}

Source: https://stackoverflow.com/questions/5635114/returning-404-error-asp-net-mvc-3

Answer 2

Set in your file web.config the pages to be returned for each error code.

<configuration>
  <system.web>
    <customErrors mode="On" redirectMode="ResponseRewrite">
        <error code="404" path="404.html" />
        <error code="500" path="500.html" />
    </customErrors>
  </system.web>
</configuration>

Entries do not need to be static. They can even be returned by Views of Controllers specific.

The redirectMode makes the answer really the desired code. The problem with default redirecting is that redirecting makes the redirect page return with code 200 (OK), which is wrong.