Asp.net 404 Error Handling
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Mvc 404 Error Handling
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Ajax 404 Error Handling
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 php 404 error handling 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. typo3 404 error handling 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. If a request is made on the server com
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Struts2 404 Error Handling
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Exception Handling In Asp.net C#
programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Best way to implement a 404 in ASP.NET up vote 28 down vote favorite 12 I'm trying to determine the best https://msdn.microsoft.com/en-us/library/bb397417.aspx way to implement a 404 page in a standard ASP.NET web application. I currently catch 404 errors in the Application_Error event in the Global.asax file and redirect to a friendly 404.aspx page. The problem is that the request sees a 302 redirect followed by a 404 page missing. Is there a way to bypass the redirect and respond with an immediate 404 containing the friendly error message? Does a web crawler such as http://stackoverflow.com/questions/667053/best-way-to-implement-a-404-in-asp-net Googlebot care if the request for a non existing page returns a 302 followed by a 404? asp.net http-status-code-404 share|improve this question asked Mar 20 '09 at 17:01 Ben Mills 7,782112936 add a comment| 9 Answers 9 active oldest votes up vote 29 down vote accepted Handle this in your Global.asax's OnError event: protected void Application_Error(object sender, EventArgs e){ // An error has occured on a .Net page. var serverError = Server.GetLastError() as HttpException; if (null != serverError){ int errorCode = serverError.GetHttpCode(); if (404 == errorCode){ Server.ClearError(); Server.Transfer("/Errors/404.aspx"); } } } In you error page, you should ensure that you're setting the status code correctly: // If you're running under IIS 7 in Integrated mode set use this line to override // IIS errors: Response.TrySkipIisCustomErrors = true; // Set status code and message; you could also use the HttpStatusCode enum: // System.Net.HttpStatusCode.NotFound Response.StatusCode = 404; Response.StatusDescription = "Page not found"; You can also handle the various other error codes in here quite nicely. Google will generally follow the 302, and then honour the 404 status code - so you need to make sure that you return that on your error page. share|improve this answer edited Jun 8 '15 at 18:10 answered Mar 20 '09 at 20:36 Zhaph - Ben Duguid 21.5k44694 Perfect. I forgot about the Server.Transfer
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 company Business Learn http://stackoverflow.com/questions/619895/how-can-i-properly-handle-404-in-asp-net-mvc more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users http://www.codeproject.com/Articles/600466/ASP-NETplusApplicationplusErrorplusHandling Badges Ask 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 How can I properly handle 404 in ASP.NET MVC? up vote 369 down vote favorite 406 I am just getting started on ASP.NET MVC so bear with error handling me. I've searched around this site and various others and have seen a few implementations of this. EDIT: I forgot to mention I am using RC2 Using URL Routing: routes.MapRoute( "Error", "{*url}", new { controller = "Errors", action = "NotFound" } // 404s ); The above seems to take care of requests like this (assuming default route tables setup by initial MVC project): "/blah/blah/blah/blah" Overriding HandleUnknownAction() in the controller itself: // 404s - handle here (bad 404 error handling action requested protected override void HandleUnknownAction(string actionName) { ViewData["actionName"] = actionName; View("NotFound").ExecuteResult(this.ControllerContext); } However the previous strategies do not handle a request to a Bad/Unknown controller. For example, I do not have a "/IDoNotExist", if I request this I get the generic 404 page from the web server and not my 404 if I use routing + override. So finally, my question is: Is there any way to catch this type of request using a route or something else in the MVC framework itself? OR should I just default to using Web.Config customErrors as my 404 handler and forget all this? I assume if I go with customErrors I'll have to store the generic 404 page outside of /Views due to the Web.Config restrictions on direct access. Anyway any best practices or guidance is appreciated. asp.net-mvc http-status-code-404 share|improve this question edited Jun 20 '11 at 21:05 zvolkov 12.5k84970 asked Mar 6 '09 at 18:21 Brian 1,8643107 3 it's 404 error, i would just not bother about it. let it display 404. as definitely user mistyped something. or if it is something thats moved then your application should take that request and do redirect permanent. 404 belongs to webserver not application. you can always customize iis pages for error. –mamu Aug 1 '10 at 4:08 you can have a look at this solution as well blog.dantup
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