Asp 404 Error Handling
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Spring 404 Error Handling
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 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 ajax 404 error handling 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 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
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
Php 404 Error Handling
you haven't read it yet, please do so). And looking around, the vast
Typo3 404 Error Handling
majority of information out there on it is not complete, misinformed, or flat-out wrong (but I greatly appreciate all efforts!). And struts2 404 error handling 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 http://stackoverflow.com/questions/667053/best-way-to-implement-a-404-in-asp-net way to handle 404 errors is to put something like the following in your Web.config:
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