Asp.net Mvc 404 Error Handling
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404 Error In Mvc 4
Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with handleerrorattribute 404 us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just mvc custom 404 error like you, helping each other. Join them; it only takes a minute: Sign up ASP.NET MVC 404 Error Handling [duplicate] up vote 98 down vote favorite 94 Possible Duplicate: How can I properly handle 404 in ASP.NET MVC? I've made the changes outlined at 404 Http error handler in Asp.Net MVC (RC 5) and I'm still
Mvc 404 Handler
getting the standard 404 error page. Do I need to change something in IIS? asp.net-mvc error-handling share|improve this question edited Mar 9 '11 at 20:23 Dan Dumitru 3,6581838 asked Apr 4 '09 at 19:13 Clearly 6541614 marked as duplicate by casperOne May 8 '12 at 13:31 This question has been asked before 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).
it 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, Visual Studio httpnotfound vs httpexception integration, API and much more. Custom error pages and global error logging are spring mvc 404 error handling two elementary and yet very confusing topics in ASP.NET MVC 5. There are numerous ways of implementing error pages in
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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 consists of: Human http://stackoverflow.com/questions/717628/asp-net-mvc-404-error-handling 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 or a combination of these https://dusted.codes/demystifying-aspnet-mvc-5-error-pages-and-error-logging 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 responsible for producing a response/output for a request. IIS (Micros
the default HandleError Attribute in MVC. In this article, we will see how we can use the HandleError attribute to quickly put together an http://www.devcurry.com/2012/06/aspnet-mvc-handling-exceptions-and-404.html exception handling mechanism that helps hide the ‘dark' underbelly of your application but helps you debug with the same configuration. We will also look at a solution to handle 404 errors gracefully. http://www.mazsoft.com/blog/post/2014/07/16/Quick-and-easy-Custom-404-page-for-ASPnet-MVC-5 Overall we try to achieve the following on IIS 7+ Goal 1 - Use MVCs HandleError action filter to take care of Unhandled/Unexpected errors Goal 2- See only user friendly messages 404 error at Runtime Goal 3 - See exception stack traces at debug time Goal 4- Manage 404 error with a proper error message Goal 5 - Keep a 404 Response status The HandleError Attribute The HandleError attribute helps mark controller classes for ‘Unhandled Error' exceptions. The HandleErrorAttribute() attribute filter will pipe the Unhandled exceptions to this attribute filter enabling you to take appropriate exception. The mvc 404 error attribute filter is put in place by the default MVC template in the Global.asax (or for MVC4 in the App_Start\FilterConfig.cs) by adding the Action filter as follows: public static void RegisterGlobalFilters(GlobalFilterCollection filters) { filters.Add(new HandleErrorAttribute()); } By default, if you turn on CustomErrors, the behavior of the HandleErrorAttribute is to redirect you to the default Error page. Setting up the Custom Errors page Setup of the Custom Errors page is easy. We simply turn on the CustomErrors in the web.config. To Test the setting we throw an exception in the ‘About' action method of the Home Controller public ActionResult About() { ViewBag.Message = "Your app description page."; throw new ApplicationException("Testing default ErrorHandler attribute"); //return View(); } Now when we run the application and click on ‘About' we see the following This is the default output from Errors.cshtml in the Shared folder of a default MVC project. As we can see, it returns a correct 500 status message. At this stage, we have achieved the first and second goals we set out to achieve. However we have lost the stack trace. Let us fix
/ 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: