Asp Net Throw 404 Error
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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 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 asp net throw exception 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 work though! –Earlz Feb 11 '11 at 22:11 add a comment| up vote 11 down vote A much better way is: 'Throws a 404 Not found: Response.Clear() Response.StatusCode = 404 Response.End() There is no need to throw an exception and the above works much better when using custom error pages in the web.config share|improve this answer edited May 5 '14 at 11:59 answered May 4 '14 at 11:35 geo1701 7,09915063 You can also use the enums as well in System.Net.HttpStatusCode. –Martin Mazza Dawson Apr 30 at 20:53 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Go
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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 Correctly send user to http://stackoverflow.com/questions/4974562/possible-to-throw-a-404-error-within-an-asp-net-page 404 if dynamic content is not found (ASP.NET MVC) up vote 3 down vote favorite 2 I have implemented 404 handling for the general case in ASP.NET MVC 3, for when a controller/view is not found. But how should it be handled inside the controller if the user is trying to access something that can't be found? For example www.foo.bar/Games/Details/randomjunk will call this inside GamesController: public http://stackoverflow.com/questions/10163238/correctly-send-user-to-404-if-dynamic-content-is-not-found-asp-net-mvc ActionResult Details(string id) // id is 'randomjunk' { if(DoesGameExist(id) == false) // Now what? I could just do a return Redirect('/Errors/Http404'); but that doesn't seem like the correct way to do it. Should you throw an exception, or something else? We could have a special view in this case, but to start with we need a good way we can apply to several cases. Edit: I want to show my friendly 404 page I already have for the general case. c# asp.net-mvc asp.net-mvc-3 http-status-code-404 share|improve this question edited Apr 15 '12 at 15:17 asked Apr 15 '12 at 15:11 John-Philip 343419 add a comment| 3 Answers 3 active oldest votes up vote 7 down vote accepted You should throw HttpException 404 : throw new HttpException(404, "Page not Found"); share|improve this answer answered Apr 15 '12 at 15:21 Antonio Bakula 15.3k44467 This does exactly what I want! The user ends up at '/Errors/Http404?aspxerrorpath=/Games/Details/randomjunk', sees a nice page, and the error is logged on the server. –John-Philip Apr 15 '12 at 15:31 add a comment| up vote 4 down vote EDIT: Apparently per Darin Dimitrov, what I had before doesn't work even with customEr
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