CODEWITHSUNDEEP
c#asp.net-mvcasp.net-mvc-5
Coder
Coder

Reputation: 81

How to display a custom 404-error page

I have created one demo for show our custom error page in MVC 5. I am having success when entering two slashes, but when I am entering more than two slashes, I am not getting my custom error page, but rather a MVC error as shown below.

HTTP Error 404.0 - Not Found The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.

This is how my Web.config file looks like.

<customErrors mode="On" defaultRedirect="~/Error">
    <error redirect="~/Error/NotFound" statusCode="404" />
    <error redirect="~/Error/Forbidden" statusCode="403" />
</customErrors>

This is my ErrorController.

public ViewResult NotFound()
{
    return View();
}

My current setup works fine when I enter the URL below.

http://localhost:14360/search/fdsfdf

But when enter one of the URLs below, my custom error page is not displayed.

http://localhost:14360/search/fdsfdf/sdsdsd/asdsadasd/dasdsad
http://localhost:14360/search/fdsfdf/dsads/fe

Upvotes: 3

Views: 2563

Answers (2)

lex.xu
lex.xu

Reputation: 199

Default /App_Start/RouteConfig.cs have

routes.MapRoute(
    name: "Default",
    url: "{controller}/{action}/{id}",
    defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
);

so you enter http://localhost:14360/search/fdsfdf or http://localhost:14360/search/fdsfdf/1234 will get httpStatusCode 200,but http://localhost:14360/search/fdsfdf/dsads/fe is undefine url, asp.net will return 404 to browser if you need custom error page, try add httpErrors and customErrors handle httpStatusCode 404

<system.webServer>
    <httpErrors existingResponse="Auto" errorMode="Custom" defaultResponseMode="File">
        <remove statusCode="404" subStatusCode="-1"/>
        <error statusCode="404" path="/Error/404" responseMode="Redirect" />
    </httpErrors>
</system.webServer>

<system.web>
    <customErrors mode="RemoteOnly" defaultRedirect="~/Error/Index">
        <error redirect="~/Error/404" statusCode="404" />
    </customErrors>
</system.web>

Upvotes: 1

user7744592
user7744592

Reputation:

The problem you are facing comes down to the fact that some errors are handled by ASP.NET and others by IIS. You can read more on that topic here.

I would suggest you create an ErrorsController, which handles the most common application errors and returns the respective views. Additionally, you have to configure your Web.config (or Web.Release.config) file to use the newly created controller and you also might have to replace the default error pages of your IIS (for me, they are located within the InetPub\custerr\en-US\ directory).

Controller (ErrorsController.cs)

public class ErrorsController : Controller
{
    // GET: Errors/Unauthorized
    public ActionResult Unauthorized()
    {
        return new HttpStatusCodeResult(401);
    }

    // GET: Errors/Forbidden
    public ActionResult Forbidden()
    {
        return new HttpStatusCodeResult(403);
    }

    // Additional Errors
}

Configuration File (Web.Release.config)

<customErrors defaultRedirect="~/" mode="RemoteOnly" xdt:Transform="Replace">
  <error statusCode="401" redirect="~/Errors/Unauthorized"/>
  <error statusCode="403" redirect="~/Errors/Forbidden"/>
  <!-- Additional Errors -->
</customErrors>

Upvotes: 1

Related Questions