Asp.net Mvc Throw 404 Error
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Asp.net Mvc Return 404 From Controller
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. If this string results in no data being returned (maybe because it has been deleted), I want to return a 404 http 404 exception 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 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 5,06032962 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
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(), mvc httpnotfound or both? [Answered]RSS 9 replies Last post Apr 16, 2014 02:20 AM
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Threads Unresolved Threads Support Options Advanced Search Related Links GuidanceSamplesVideos Reply Eagle_f90 Member 224 Points 673 Posts Best way to throw 404 error? Use HttpNotFound, HttpException(), or both? Apr 14, http://stackoverflow.com/questions/2948484/how-to-get-mvc-action-to-return-404 2014 10:45 PM|Eagle_f90|LINK I was digging around on Google trying to find the best way to 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 http://forums.asp.net/t/1981646.aspx?Best+way+to+throw+404+error+Use+HttpNotFound+HttpException+or+both+ throw new HttpException(404, "File Not Found"); return View(); you will invoke the error handelers but it will not set the Status code. So 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
when the model you're passing is null 2011-02-17 11:44 Tugberk Ugurlu .Net ASP.Net C# ASP.NET MVC Tips How do you handle your actions inside a controller when the model you are passing to the view is null? Sometimes it is best to show ‘There is no product as http://www.tugberkugurlu.com/archive/asp-net-mvc---throwing-404-exceptions-manually-from-controller-when-model-is-null you requested’ kind of message but sometime it is getting dull. Especially on CRUD based actions. HttpException is becoming very handy here. We could throw this exception from our controllers and the application will render the status exception page we are defining. In https://msdn.microsoft.com/en-us/library/bb397417.aspx this post I would like to show how we handle this properly. Here is our scenario : we have an MVC app and in one of our edit page, we would like to throw 404 exception if the model we are passing is asp.net mvc null. [Authorize] public ActionResult Edit(Guid id) { var model = Repository.GetSingle(id); if (model == null) throw new HttpException(404, "not found"); return View(model); } This code is basically telling that try to get the item whose ID is id and check if it is null. If it is null, throw HttpException whose status code is 404. If not, return the View along with passing model into view page. When we hit a page which has null model, we will see the 404 page as expected; This mvc throw 404 is that easy ! Give it a try, it won’t hurt Tweet New Comment Name E-mail Website Comment Text Send Comment Tags mvcscaffolding (1) visual basic (1) excel (1) blogging (2) ecommerce (1) security (1) projects (1) dexter (1) sql injection (1) tugberkugurlu.com (1) time saviour (1) microsoft office (1) windows live writer (1) assignments (2) tourism business (1) tv series (1) tourismgeek (1) congress & convention tourism (1) tech guys (1) facts & figures (2) web.config (1) wcf web api (2) business (1) random (2) caching (1) xunit (1) code review (2) powershell (6) autofac (2) iis (4) github (4) mvp (1) ravendb (2) windows 8 (1) windows server appfabric (1) lucene.net (1) concurrency (1) hosting (4) microsoft (6) deployment (6) it stuff (4) owin (8) programming (1) web (1) azure storage (1) search (1) tips (14) gulp (2) azure search (2) software (1) roslyn (1) continious delivery (1) octopus deploy (1) azure web apps (1) javascript (5) visual studio (11) sql release (2) identity (1) elasticsearch (4) mongodb (5) neo4j (1) linux (2) dlm (6) blob storage (1) tourism (10) unwto (4) redis (2) windows azure
resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft Student Partners ISV Startups TechRewards Events Community Magazine Forums Blogs Channel 9 Documentation APIs and reference Dev centers Retired content Samples We’re sorry. The content you requested has been removed. You’ll be auto redirected in 1 second. MSDN Library MSDN Library MSDN Library MSDN Library Design Tools Development Tools and Languages Mobile and Embedded Development .NET Development Office development Online Services Open Specifications patterns & practices Servers and Enterprise Development Speech Technologies Web Development Windows Desktop App Development TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. Complete Example for Error Handlers Other Versions Visual Studio 2010 .NET Framework 4 Visual Studio 2008 This code example includes elements for both page-level and application-level exception handling. Code Example Files The example consists of the following files: Web.config Global.asax Default.aspx ExceptionUtility (to be put in the App_Code folder) GenericErrorPage.aspx HttpErrorPage.aspx Http404ErrorPage.aspx DefaultRedirectErrorPage.aspx Web.config The following example shows the Web.config file. The customErrors section specifies how to handle errors that occur with file types that are mapped to ASP.NET, such as .aspx, .asmx, and .ashx files. (In IIS 6.0 and in IIS 7.0 in classic mode, static content files such as .html and .jpg files are not mapped to ASP.NET.) The settings in the example customErrors section cause any unhandled HTTP 404 (file not found) errors to be directed to the Http404ErrorPage.aspx file. These HTTP 404 errors would occur if a request were made for an .aspx file, .asmx file, and so on and if the requested file did not exist. All other unhandled errors in ASP.NET files are directed to the DefaultRedirectErrorPage.aspx file. If static content files are not handled by ASP.NET, a request for a nonexistent .html or .jpg file does not cause a redirect to the Http404ErrorPage.aspx file. If you want ASP.NET to handle requests for all file types, you can configure IIS to map file-name extensions to ASP.NET. Note In the example, the mode attribute is set to "On" so that you can error messages when you run the example in Visual Studio. In a production environment, this setting would normally be "RemoteOnly". ASP.NET then renders error pages to external users