404 Error In Asp.net Mvc
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Mvc 404 Not Found
and already has an answer. If those answers do not fully address your question, please ask a new question. 1 Here is a good read on this topic @ How to handle 404 Not Found errors effectively with ASP.NET MVC 4 –Yasser Nov 3 '12 at 12:03 add a comment| 6 Answers 6 active oldest votes up vote 111 down vote accepted Yet another solution. Add ErrorControllers or static page to with 404 error information. Modify you web.config (in case of controller).
you're not alone. It's surprisingly difficult to do this correctly, not helped by the fact that some errors are handled by ASP.NET and others by IIS. Ideally
Throw Httpexception 404
(and I expect such is the case with some other frameworks/servers) we handle 404 in mvc would just configure our custom error pages in one place and it would just work, no matter how/where the error mvc 404 redirect was raised. Something like:
404 Page Not Found
I created a new ASP.NET MVC 5 application using the standard template in Visual Studio. If I run the site and try to navigate to a resource that does not exist e.g. /foo/bar, I'll get the standard ASP.NET 404 page with the following information: Server Error in '/' Application. The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly. Requested URL: /foo/bar Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.33440 Not exactly friendly, is it? In this case the error was raised by ASP.NET MVC because it could not find a matching controller and/or action that matched the specified URL. In order to set up a custom 404 error page add the following to web.config insideit as part of our official documentation for implementing custom error pages, we've decided to sponsor it. Visit elmah.io - Error Management for .NET web applications using ELMAH, powerful search, integrations with Slack and HipChat, https://dusted.codes/demystifying-aspnet-mvc-5-error-pages-and-error-logging Visual Studio integration, API and much more. Custom error pages and global error logging are two elementary and yet very confusing topics in ASP.NET MVC 5. There are numerous ways of implementing error http://www.mazsoft.com/blog/post/2014/07/16/Quick-and-easy-Custom-404-page-for-ASPnet-MVC-5 pages in ASP.NET MVC 5 and when you search for advice you will find a dozen different StackOverflow threads, each suggesting a different implementation. Overview What is the goal? Typically good error handling 404 error consists of: Human friendly error pages Custom error page per error code (e.g.: 404, 403, 500, etc.) Preserving the HTTP error code in the response to avoid search engine indexing Global error logging for unhandled exceptions Error pages and logging in ASP.NET MVC 5 There are many ways of implementing error handling in ASP.NET MVC 5. Usually you will find solutions which involve at least one 404 error in or a combination of these methods: HandleErrorAttribute Controller.OnException Method Application_Error event customErrors element in web.config httpErrors element in web.config Custom HttpModule All these methods have a historical reason and a justifyable use case. There is no golden solution which works for every application. It is good to know the differences in order to better understand which one is applied best. Before going through each method in more detail I would like to explain some basic fundamentals which will hopefully help in understanding the topic a lot easier. ASP.NET MVC Fundamentals The MVC framework is only a HttpHandler plugged into the ASP.NET pipeline. The easiest way to illustrate this is by opening the Global.asax.cs: public class MvcApplication : System.Web.HttpApplication Navigating to the implementation of HttpApplication will reveal the underlying IHttpHandler and IHttpAsyncHandler interfaces: public class HttpApplication : IComponent, IDisposable, IHttpAsyncHandler, IHttpHandler ASP.NET itself is a larger framework to process incoming requests. Even though it could handle incoming requests from different sources, it is almost exclusively used with IIS. It can be extended with HttpModules and HttpHandlers. HttpModules are plugged into the pipeline to process a request at any point of the ASP.NET life cycle. A HttpHandler is respons
/ Comments (1) While ASP.net MVC makes it easy and clean to create a professional looking website, it seems to be a little harder to incorporate custome error pages (e.g. 404 page) which are part of general look and feel of your site. There are many good write-ups on how to do this (for example http://benfoster.io/blog/aspnet-mvc-custom-error-pages), but I was looking for an easy way to point to one of my views as the 404 page. What I ended up doing was to create a controller for my error views and use the httpErrors section of web.config to point to it: