Custom Error Page In Mvc3
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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 custom validation in mvc3 by IIS. Ideally (and I expect such is the case with some error handling in mvc3 other frameworks/servers) we would just configure our custom error pages in one place and it would just work, no
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matter how/where the error was raised. Something like:
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static or dynamic) we should return a 404 HTTP status code. Ideally we should return something a little friendlier to our site visitors than the error pages built in to ASP.NET/IIS, perhaps offering some advice on why the resource may not exist or providing an option to search the site. For the purposes of this blog post, my custom 404 page custom error page mvc is very simple, but you can see some really nice examples here.
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 insidehere for a quick overview of the site Help Center Detailed answers to any questions you might have
Mvc 5 Custom Error Page
Meta Discuss the workings and policies of this site About Us Learn mvc redirect to error page more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us set custom error page in web.config mvc 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 like http://benfoster.io/blog/aspnet-mvc-custom-error-pages you, helping each other. Join them; it only takes a minute: Sign up Custom error pages on asp.net MVC3 up vote 138 down vote favorite 116 I'm developing a MVC3 base website and I am looking for a solution for handling errors and Render custom Views for each kind of error. So imagine that I have http://stackoverflow.com/questions/5226791/custom-error-pages-on-asp-net-mvc3 a "Error" Controller where his main action is "Index" (generic error page) and this controller will have a couple more actions for the errors that may appear to the user like "Handle500" or "HandleActionNotFound". So every error that may happen on the website may be handled by this "Error" Controller (examples: "Controller" or "Action" not found, 500, 404, dbException, etc). I am using Sitemap file to define website paths (and not route). This question was already answered, this is a reply to Gweebz My final applicaiton_error method is the following: protected void Application_Error() { //while my project is running in debug mode if (HttpContext.Current.IsDebuggingEnabled && WebConfigurationManager.AppSettings["EnableCustomErrorPage"].Equals("false")) { Log.Logger.Error("unhandled exception: ", Server.GetLastError()); } else { try { var exception = Server.GetLastError(); Log.Logger.Error("unhandled exception: ", exception); Response.Clear(); Server.ClearError(); var routeData = new RouteData(); routeData.Values["controller"] = "Errors"; routeData.Values["action"] = "General"; routeData.Values["exception"] = exception; IController errorsController = new ErrorsController(); var rc = new RequestContext(new HttpContextWrapper(Context), routeData); errorsController.Execute(rc); } catch (Exception e) { //if Error controller failed for same reason, we will di
Jonas December 11th, 2011 Comments: 5 Categories: Howto, Programming In this blog post I will show how to set up custom error pages in ASP.NET MVC 3 http://blog.janjonas.net/2011-12-11/asp-net-mvc3-custom-error-pages-non-ajax-requests-jquery-ajax-requests applications to create user-friendly error messages instead of the (yellow) IIS default error pages for both "normal" (non-AJAX) requests and jQuery AJAX requests.In this showcase we will http://www.dotneat.net/2011/04/12/ErrorHandlingInASPNETMVC3.aspx implement custom error pages to handle the HTTP error codes 404 ("Not Found") and 500 ("Internal server error") which I think are the most common errors error page that could occur in web applications. In a first step we will set up the custom error pages to handle errors occurring in "normal" non-AJAX requests and in a second step we add a little JavaScript jQuery code that handles jQuery AJAX errors.We start with a new (empty) ASP.NET MVC 3 project and activate custom error page custom errors in the Web.config by adding the following lines under
allow us to handle errors in a very easy way. Just by decorating an action (or controller if we want to extend HandleError behaviour to all actions on that controller) with the HandleError attribute and enabling “CustomErrors” in web.config, we get a nice redirection to a friendly view in case an unhandled error raises. Internally, we could have a look at the implementation of OnException method inside HandleErrorusing Reflector to see how it works: As we can see, the unhandled exception will be handled if it hasn't been already marked as "handled" and if custom error handling is enabled . Web.config customErrors section The CustomErrors section allow us to define automatic error handling behaviour. If it doesn't exists, it must be created inside system.web section. as shown here: Posible values for mode are "Off | On | RemoteOnly". This will allow us to easy define behaviour for development and production scenarios : On: custom error handling enabled Off: custom error handling disabled. If an error is raised, we will see the yellow screen of death of ASP.NET RemoteOnly: if we launch the application in the local server (targeting http://localhost ), we won't see custom errors. If we access the applicationfrom other machine, we will see custom erros. This option is used by developers to debug applications. If there is an error, you can always (among other things) RD to your server and launch the application in a local browser so you see the exception in a first seat. Behaviour If we use the HandleError attribute and CustomErrors is enabled,w hen an unhandled error raises, the MVC runtimewill look for a “Errors.aspx” view in the context of the HttpRequest being processed (current view folder associated to controller or shared view folder), and will render it. In this case the "defaultredirect" and "redirect" CustomErrors attributes are ignored If we don't use the HandleError attribute and CustomErrors is enabled , we will get an HTTP redirection to the url defined on the "redirect" and "defaultredirect" attributes, within the CustomErrors section in web.config (in our case, /Error/General) Important: ASP.NET MVC3, registers the HandleError attribute globally (for all controllers) !! (see image). Take that into account so you don't think your MVC3 controlleris not using the HandleError attribute (by default it is). In previous versions of ASP.NET MVC, where we didn't have global filters, the HandleError attribute had to be defined manually for each action or controller. Also important: If you have enabled CustomErrors=On , also added the [HandleError ] and still get a yellow screen of death please make sure the Error