Asp.net Mvc Global.asax Error Handling
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Mvc 5 Error Handling
up ASP.NET MVC Custom Error Handling Application_Error Global.asax? up vote 82 down vote favorite 71 I have some basic code to determine errors in my MVC application. Currently in my project I have a controller called Error with action methods HTTPError404(), HTTPError500(), and General(). They all accept a string parameter error. Using or modifying the code below. What is the best/proper way mvc error handling best practice to pass the data to the Error controller for processing? I would like to have a robust solution as possible. protected void Application_Error(object sender, EventArgs e) { Exception exception = Server.GetLastError(); Response.Clear(); HttpException httpException = exception as HttpException; if (httpException != null) { RouteData routeData = new RouteData(); routeData.Values.Add("controller", "Error"); switch (httpException.GetHttpCode()) { case 404: // page not found routeData.Values.Add("action", "HttpError404"); break; case 500: // server error routeData.Values.Add("action", "HttpError500"); break; default: routeData.Values.Add("action", "General"); break; } routeData.Values.Add("error", exception); // clear error on server Server.ClearError(); // at this point how to properly pass route data to error controller? } } c# asp.net asp.net-mvc error-handling user-experience share|improve this question edited Sep 10 '14 at 17:54 Oualid KTATA 52138 asked Jul 23 '09 at 11:07 aherrick 7,6411770115 add a comment| 9 Answers 9 active oldest votes up vote 80 down vote accepted Instead of creating a new route for that, you could just redirect to your controller/action and pass the information via querystring. For instance: protected void Application_Error(object sender, EventArgs e) { Exception exception = Server.GetLastError(); Response.Clear(); HttpException httpException = exception as HttpException; if (httpException != null) { string a
Effectively in ASP.NET MVC 10 April 2014Handling Errors Effectively in ASP.NET MVCASP.NET MVC gives you more options in the way that you handle exceptions. Error handling isn't intrinsically exciting, but there are many ways of asp.net mvc handleerrorattribute avoiding the classic yellow page of death, even getting ELMAH to manage error handling for
Mvc Application_error Not Firing
you. 79 3 Dino Esposito Years ago, ASP.NET's error handling was one of the major things that made me wonder if ASP.NET
Application_error Mvc 5
MVC could give me something that ASP.NET Web Forms couldn't. Web Forms is based on pages; so if something goes wrong, all that you can do is to redirect the user to another page and explain what the http://stackoverflow.com/questions/1171035/asp-net-mvc-custom-error-handling-application-error-global-asax error was or just be generically sorry. ASP.NET Web Forms allow you to map an error page for each possible HTTP status code. You control the mapping through the
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 https://msdn.microsoft.com/en-us/library/24395wz3.aspx Documentation APIs and reference Dev centers Retired content Samples We’re sorry. http://www.wduffy.co.uk/blog/using-application_error-in-asp-net-mvcs-global-asax-to-handle-errors/ 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 error handling 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. How to: Handle Application-Level Errors Other Versions Visual Studio 2010 .NET Framework 4 Visual Studio 2008 .NET Framework 3.0 Visual Studio mvc global.asax error 2005 This code example shows how to create an error handler in the Global.asax file that will catch all unhandled ASP.NET errors while processing a request — in other words, all the errors that are not caught with a Try/Catch block or in a page-level error handler. In the example, the handler transfers control to a generic error page named GenericErrorPage.aspx, which interprets the error and displays an appropriate message. Example The following example is from a complete code sample in Complete Example for Error Handlers. Security Note Never set customErrors to Off in your Web.config file if you do not have an Application_Error handler in your Global.asax file. Potentially compromising information about your Web site can be exposed to anyone who can cause an error to occur on your site. C#VB Copy void Application_Error(object sender, EventArgs e) { // Code that runs when an unhandled error occurs // Get the exception object. Exception exc = Server.GetLastError(); // Handle HTTP errors if (exc.GetType() == typeof(HttpException)) { // The Complete Error Handling Ex
1, 2011 • (7) ASP.NET MVC's controllers have great error handling capabilities and can be easily extended to cater for application specific requirements. However, many developer don't want to manage errors at a controller level and would rather manage 99 percent of errors from a single location. This allows for a single point of error logging, notification and handling. The Application_Error event within the global.asax is the perfect place for this, but there are a few issues to consider when used in an MVC project. Server.Transfer is not available to serve an error message as it requires a physical file to serve. Your MVC project more than likely doesn't have one of theses as it uses routes, controllers and views. We need to find a workaround for this in order to return suitable response headers. Reponse.Redirect is not suitable as '500: Internal Server Error' and '404: Not Found' pages should serve a suitable response header, not a 301 redirect. Response.Clear() should be called to ensure that any content written to the response stream before the error occurred is removed. Server.ClearError() must be called to stop ASP.NET from serving the yellow screen of death. With these points in mind the following steps can be coded into the Application_Error event for error handling and logging. Get the last error raised. Get the error code to respond with. Log the error (I'm ignoring 404′s). Clear the response stream. Clear the server error. Render the error handling controller without a redirect. Here is the Application_Error code… void Application_Error(object sender, EventArgs e) { var error = Server.GetLastError(); var code = (error is HttpException) ? (error as HttpException).GetHttpCode() : 500; if (code != 404) { // Generate email with error details and send to administrator // I'm using RazorMail which can be downloaded from the Nuget Gallery // I also have an extension method on type Exception that creates a string representation var email = new RazorMailMessage("Website Error")