ASP.NET MVC5 Custom Errors hitting 500 instead of 400, 403 or 404

Question

I have setup Custom Errors for my site as my Web.config shows below:

<system.web>
    <customErrors mode="On" redirectMode="ResponseRewrite" defaultRedirect="~/Error/Error400">
      <error statusCode="400" redirect="~/Error/Error404"/>
      <error statusCode="404" redirect="~/Error/Error404" />
      <error statusCode="403" redirect="~/Error/Error403" />
      <error statusCode="500" redirect="~/Error/Error500" />
    </customErrors>   
</system.web>

And also

<system.webServer>  
    <httpErrors errorMode="Custom" existingResponse="Replace">
        <remove statusCode="400" />
        <error statusCode="400" path="/Error/Error400" responseMode="ExecuteURL" />
        <remove statusCode="403" />
        <error statusCode="403" path="/Error/Error403" responseMode="ExecuteURL" />
        <remove statusCode="404" />
        <error statusCode="404" path="/Error/Error404" responseMode="ExecuteURL" />      
        <remove statusCode="500" />
        <error statusCode="500" path="/Error/Error500" responseMode="ExecuteURL" />
    </httpErrors>
</system.webServer>

I am throwing errors like this from my controllers:

throw new HttpException((int)HttpStatusCode.BadRequest, "The checklist Id is not specified. EntityId: " + this.LoggedInEntity.EntityId + "; userId: " + this.LoggedInUser.UserId);

The Error controller that handles the custom error page requests is:

public class ErrorController : Controller
{
    public ActionResult Error400()
    {
        ErrorViewModel error = new ErrorViewModel();
        Response.StatusCode = (int)HttpStatusCode.BadRequest;
        return View(error);
    }

    public ActionResult Error403()
    {
        ErrorViewModel error = new ErrorViewModel();
        Response.StatusCode = (int)HttpStatusCode.Forbidden;
        return View(error);
    }

    public ActionResult Error404()
    {
        ErrorViewModel error = new ErrorViewModel();
        Response.StatusCode = (int)HttpStatusCode.NotFound;
        return View(error);
    }

    public ActionResult Error500()
    {
        ErrorViewModel error = new ErrorViewModel();
        Response.StatusCode = (int)HttpStatusCode.InternalServerError;
        return View(error);
    }
}

However, in the example thrown exception which is a 400 Error, the 400 action doesn't get called. Instead, the 500 action gets called. How can I make it call the correct 400 action instead for the thrown error?

I am using ELMAH for my error logging and it is showing the correct error code: Elmah log

**Never** redirect users to show error pages that have corresponding HTTP status codes. — Dai, Feb 20 '15 at 02:19
I'm not. They are custom error pages. They only see a nice message. — Rhys Stephens, Feb 20 '15 at 02:19
Yes, that's correct. I'm doing that as per: http://stackoverflow.com/questions/25685737/mvc5-custom-error-page and http://benfoster.io/blog/aspnet-mvc-custom-error-pages — Rhys Stephens, Feb 20 '15 at 02:27
Your answer hasn't helped answer my question at all. Can I please get some more help — Rhys Stephens, Feb 25 '15 at 23:08

score 1 · Accepted Answer · edited May 23 '17 at 12:28

1

According to the following answer, ResponseRewrite won't work with MVC routes:

https://stackoverflow.com/a/3770265/758765

If you read through Bens (awesome) blog post, he's using actual files to represent the 404 and 500 responses and not an MVC controller.

edited May 23 '17 at 12:28

Community

1
1

answered Feb 26 '15 at 19:17

ThomasArdal

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Thanks for this. It does seem rather silly, but Ben's method works. – Rhys Stephens Mar 04 '15 at 23:25

ASP.NET MVC5 Custom Errors hitting 500 instead of 400, 403 or 404

1 Answers1