Asp Throw Error 404
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within an ASP.Net page? up vote 13 down vote favorite 3 I was wondering if it's possible to throw a 404 error from within a page(code behind)? Or possibly even throw any other type of error page such as 408(timeout) or 401(authentication required)? Note: I don't just want to have the page return a status code of 404, I want it to use the ASP.Net(or my asp catch error CustomErrors) 404 error page. Something like this in the code behind: if(id>10){ //if id is greater than 10, then it doesn't exist here throw 404Error(); } asp.net http exception share|improve this question asked Feb 11 '11 at 22:05 Earlz 25.6k55206400 add a comment| 2 Answers 2 active oldest votes up vote 23 down vote accepted You could throw an HttpException and set the corresponding status code: throw new HttpException(404, "Not found"); It will also work with other status codes. Just a remark about the 401: as you probably know when ASP.NET MVC detects this code it automatically redirects you to the login page and getting a custom error page for the 401 status code could be a real PITA to implement. share|improve this answer answered Feb 11 '11 at 22:07 Darin Dimitrov 688k15924972374 Hmm. If this exception was thrown when CustomErrors is off, will it show the standard ASP.Net exception page with a stacktrace? –Earlz Feb 11 '11 at 22:08 2 @Earlz, if customErrors="Off" you will probably get an YSOD. –Darin Dimitrov Feb 11 '11 at 22:09 I was just curious for when in a development environment. That seems to wor
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 this site About Us Learn more about Stack Overflow the asp raise error company Business Learn more about hiring developers or posting ads with us Stack Overflow catch 404 error javascript Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 rails raise 404 error million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up respond with 404 error from asp.net page codebehind up vote 6 down vote favorite 1 I have a scenario http://stackoverflow.com/questions/4974562/possible-to-throw-a-404-error-within-an-asp-net-page in which I'm serving a file from codebehind. which file, depends on request. in some cases there will be no file to serve and I want to return 404 to the browser. how can I do that from codebehind? is this the correct course of action to show user there's no file available? asp.net share|improve this question asked Jul 7 '09 at 21:40 Sumrak 1,60752332 add a comment| 3 Answers 3 active oldest http://stackoverflow.com/questions/1095030/respond-with-404-error-from-asp-net-page-codebehind votes up vote 10 down vote accepted you can use the Response.StatusCode property to return a 404: Page.Response.StatusCode = 404 As for the question of whether it's the "correct thing to do" I'd say it depends how the Page is going to be accessed. If you're going to access it programmatically then yes I'd go with the 404. If however it is going to be a user facing system, then I'd go with a custom page of some sort. Programs like codes and humans like more understandable things :-) share|improve this answer answered Jul 7 '09 at 21:47 Doctor Jones 14.6k105185 add a comment| up vote 5 down vote throw new HttpException(404, "File not found"); share|improve this answer answered Jul 7 '09 at 22:08 SLaks 538k9313381510 add a comment| up vote 0 down vote I'd be more inclined to redirect them to a custom error page that clearly indicates that the file cannot be found, in the style of the rest of your web application. You can specify how to handle certain errors in web.config
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 you requested’ kind of message but sometime it is getting http://www.tugberkugurlu.com/archive/asp-net-mvc---throwing-404-exceptions-manually-from-controller-when-model-is-null dull. Especially on CRUD based actions. HttpException is becoming very handy here. We could throw this exception from our https://msdn.microsoft.com/en-us/library/bb397417.aspx controllers and the application will render the status exception page we are defining. In 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 null. [Authorize] public ActionResult Edit(Guid id) { var model = Repository.GetSingle(id); if (model == null) throw new HttpException(404, "not 404 error 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 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) php throw 404 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 (10) oauth (2) katana (7) nginx (1) docker compose (1) signalr (15) asp.net web api (49) asp.net vnext (8) async (11) tpl (9) ms sql (6) razor (5) jquery (7) nuget (6) dbcontext (5) entity framework (5) unit testing (5) c# (36) asp.n
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