HTTP Error 404.0 - Not Found in MVC 5

Question

My project in MVC 5.i wanted to handel 404. i did it but problem is that

When I access the view using the following URL, everything works fine and as expected:

http://localhost/Hotels/Index30701000000

But when I access the view using following URL, I get 404.0 error message (error shown below)

http://localhost/Hotels/Edit/09099999dfdfb http://localhost/Hotels/Edit/090/20130701000000

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

My code is

Controller

public class ErrorController : Controller { // GET: Error public ActionResult Unauthorized() { Response.StatusCode = 404; Response.TrySkipIisCustomErrors = true; return View(); } }

RouteConfig

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

Global.asax

 protected void Application_Error() { Exception exception = Server.GetLastError(); HttpException httpException = exception as HttpException; }

webconfig

 <system.web> <customErrors mode="On" defaultRedirect="Error"> <error statusCode="404" redirect="Unauthorized" /> </customErrors> </system.web>

View //Unauthorized.cshtml

@model System.Web.Mvc.HandleErrorInfo @{ ViewBag.Title = "Unauthorized"; } <h1>Page Not Found!</h1>

Reference Link

I don't know how to do that in C#, but why dont't you edit your server settings so it redirects every 404 to your custom page? — GuyT
– GuyT, Commented Nov 19, 2014 at 11:25

Eric · Accepted Answer · 2014-11-29 16:08:54Z

Another approach would be to define your error pages in an ErrorController, then use httpError section under system.WebServer in your web.config.

<httpErrors errorMode="Custom" existingResponse="Replace"> <remove statusCode="404" /> <error statusCode="404" responseMode="ExecuteURL" path="/Error/NotFound" /> <remove statusCode="500" /> <error statusCode="500" responseMode="ExecuteURL" path="/Error/Error" /> </httpErrors>

The code above is so you can test your custom page. But in your development environment, you could replace Custom with errorMode="DetailedLocalOnly" and existingResponse="Auto" so that you can still see the details errors.

I wrote a post about it recently, and it comes with a sample demo project available on GitHub you can play with. http://www.neptunecentury.com/Blogs/ASP-NET/MVC5/MVC-5-How-To-Show-Custom-Error-Pages

user3497034 · Accepted Answer · 2014-11-19 11:36:44Z

just Write these lines of code in global.asax file of your application.

protected void Application_EndRequest() { if (Context.Response.StatusCode == 404) { if ((!Request.RawUrl.Contains("style")) && (!Request.RawUrl.Contains("images"))) { Response.Clear(); if (Response.StatusCode == 404) { Response.Redirect("/ControllerName/ActionName"); } } } }

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