Asp.net Error Handling 404
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Exception Handling In Asp.net C#
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Asp.net Error Page
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 asp.net error logging 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 asp.net mvc error handling 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 ty
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Asp.net Application_error
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Page_error Event In Asp.net C#
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 Best way to implement https://msdn.microsoft.com/en-us/library/bb397417.aspx a 404 in ASP.NET up vote 28 down vote favorite 12 I'm trying to determine the best 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 http://stackoverflow.com/questions/667053/best-way-to-implement-a-404-in-asp-net there a way to bypass the redirect and respond with an immediate 404 containing the friendly error message? Does a web crawler such as 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, a
October 02, 2009 3:21 PM As mentioned at the end of my previous post on handling errors with ASP.NET, handling "404 Not Found" errors are particularly problematic (if you haven't http://www.andornot.com/blog/post/Handling-404-errors-with-ASPNET.aspx read it yet, please do so). And looking around, the vast majority of information out there on it is not complete, misinformed, or flat-out wrong (but I greatly appreciate all efforts!). And I would argue that this is because ASP.NET implementation of 404 error handling is flat-out-wrong. So with my super hero cape on, here I come to wobbly save the day! The typical ASP.NET way to handle 404 errors asp.net error is to put something like the following in your Web.config: