Asp.net Mvc Raise 404 Error
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Asp.net Mvc Return 404 From Controller
them; it only takes a minute: Sign up How to get MVC action to return 404 up vote 94 down vote favorite 12 I have an action that takes in a string that is used to retrieve some data.
Mvc Httpnotfound
If this string results in no data being returned (maybe because it has been deleted), I want to return a 404 and display an error page. I currently just use return a special view that display a friendly error message specific to this action saying that the item was not found. This works fine, but would ideally like to return a 404 status code so search engines know that this content no longer exists and can remove it from mvc 5 return 404 the search results. What is the best way to go about this? Is it as simple as setting Response.StatusCode = 404? asp.net-mvc error-handling http-status-code-404 share|improve this question asked Jun 1 '10 at 9:14 Paul Hiles 5,05032962 you also have to keep Response.TrySkipIisCustomErrors = true; The answer by @ganders was a life saver... –Thunder Jan 10 '15 at 11:28 add a comment| 11 Answers 11 active oldest votes up vote 73 down vote accepted There are multiple ways to do it, You are right in common aspx code it can be assigned in your specified way throw new HttpException(404, "Some description"); share|improve this answer edited Jul 29 '15 at 20:33 Christian Gollhardt 4,18172245 answered Jun 1 '10 at 9:18 Dewfy 14.8k74492 1 One thing to watch out for is that if you have a customError page set up to handle 404 then this error page will return 200 (the not found page was found... :-( ). I tend to throw the exception from say BlogController and have the NotFound action set the proper response code. –Nigel Sampson Jun 1 '10 at 22:26 13 I ended up doing: Response.StatusCode = 404; Response.TrySkipIisCustomErrors = true; return View("MyCustomView"); This works perfectly in my situation. –Paul Hiles Jun 2 '10 at 13:42 @PaulHiles: This is the answer for me in MVC3. Wish I could upvote it as an answer rather than a comment. –Va
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of httpnotfoundresult mvc this site About Us Learn more about Stack Overflow the company Business http 404 exception Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask mvc httpstatuscoderesult Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up http://stackoverflow.com/questions/2948484/how-to-get-mvc-action-to-return-404 How to return 404 with asp.net mvc view up vote 11 down vote favorite 2 How do I achieve the below functionality? My controler: if (something == null) { //return the view with 404 http header return View(); } //return the view with 200 http header return View(); c# .net asp.net-mvc share|improve this question edited Dec 7 '12 at 14:12 lifetimes 39.9k108499 asked http://stackoverflow.com/questions/13764685/how-to-return-404-with-asp-net-mvc-view Dec 7 '12 at 14:07 user1615362 88641537 add a comment| 6 Answers 6 active oldest votes up vote 11 down vote accepted Just write Response.StatusCode = 404; before returning the view. share|improve this answer answered Dec 7 '12 at 14:18 fero 3,5961544 3 This is exactly what return HttpNotFound(); does under the covers. It adds a 404 StatusCode and StatusDescription to the current HttpContext Response. –levelnis Dec 7 '12 at 14:36 @levelnis The difference is that this command does not end the function like return. By the way: Alan Low's answer is exactly the same as mine, and there might be a reason for it being upvoted... –fero Dec 7 '12 at 16:57 1 Thanks for the answer! For this to actually suit my needs, I had to add the following to my web config:
ASP.NET Community Standup Forums Help Home/ASP.NET Forums/General ASP.NET/MVC/Best way to throw 404 error? Use HttpNotFound, HttpException(), or bo... Best way to throw 404 error? Use HttpNotFound, HttpException(), or both? [Answered]RSS 9 replies Last post http://forums.asp.net/t/1981646.aspx?Best+way+to+throw+404+error+Use+HttpNotFound+HttpException+or+both+ Apr 16, 2014 02:20 AM by Starain chen - MSFT ‹ Previous Thread|Next Thread › Print Share Twitter Facebook Email Shortcuts Active Threads Unanswered Threads Unresolved Threads Support Options Advanced Search Related Links GuidanceSamplesVideos Reply https://dusted.codes/demystifying-aspnet-mvc-5-error-pages-and-error-logging eagle_f90 Member 224 Points 673 Posts Best way to throw 404 error? Use HttpNotFound, HttpException(), or both? Apr 14, 2014 10:45 PM|eagle_f90|LINK I was digging around on Google trying to find the best way to asp.net mvc throw a 404 error and ran across this post. If you scroll a bit of the way down there is an answer that if you just return HttpNotFound(); will just return a 404 Status code only and not invoke any error handelers. If you actually call throw new HttpException(404, "File Not Found"); return View(); you will invoke the error handelers but it will not set the Status code. So asp.net mvc raise I am thinking if you wanted to set the 404 Status Code so the system logsit as such AND you want to invoke the error handeling it would be best to use throw new HttpException(404, "File Not Found"); return HttpNotFound(); I have tried this but nothing seems to happen. The log does not get any error status codes and my error page is not called (hell I can't even get the error page to get called under normal cercumstances but that is for another post). Is this the proper way to invoke an error handeler AND set the the status code? Reply ignatandrei All-Star 118974 Points 27448 Posts ModeratorMVP Re: Best way to throw 404 error? Use HttpNotFound, HttpException(), or both? Apr 15, 2014 02:08 AM|ignatandrei|LINK If you have this code : throw any exception statement The statement code is not executed. .NET Teacher | .NET Videos 5 minutes Reply pprasannak Star 9410 Points 2375 Posts Re: Best way to throw 404 error? Use HttpNotFound, HttpException(), or both? Apr 15, 2014 02:21 AM|pprasannak|LINK You can the HttpNotFound overload method to return the status description return HttpNotFound("File Not Found"); MSDN Link: http://msdn.microsoft.com/en-us/library/gg402084(v=vs.118).aspx My blog: SPA Programmer Available for consulting Reply eagle_f90 Member 224 Points 673 Pos
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 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 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 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 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 responsible for producing a response/output for a request. IIS (Microsoft's web server technology) will create an incoming request for ASP.NET, which subsequently will start processing the request and eventually initialize the HttpApplication (which is the default handler