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How to Achive Error Handling in ASP.NET MVC

Anonymous User 1835 21-Nov-2014

How can I correctly handle exceptions thrown from controllers in ASP.NET MVC? The HandleErrorattribute seems to only process exceptions thrown by the MVC infrastructure and not exceptions thrown by my own code.

Using this web.config

<customErrors mode="On">
    <error statusCode="401" redirect="/Errors/Http401" />
</customErrors>
with the following code
namespace MvcApplication1.Controllers
{
    [HandleError]
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            // Force a 401 exception for testing
            throw new HttpException(401, "Unauthorized");
        }
    }
}

doesn't result in what I was hoping for. Instead I get the generic ASP.NET error page telling me to modify my web.config to see the actual error information. However, if instead of throwing an exception I return an invalid View, I get the /Shared/Views/Error.aspx page:

return View("DoesNotExist");

Throwing exceptions within a controller like I've done above seems to bypass all of the HandleErrorfunctionality, so what's the right way to create error pages and how do I play nice with the MVC infrastructure?


Updated on 22-Nov-2014
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