Custom Error Handling In Global.asax
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 Documentation APIs and reference Dev centers Retired content Samples We’re sorry. 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 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 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 Example generates // some errors using URLs with "NoCatch" in them; // ignore these here to simulate what would happen // if a global.asax handler were not implemented. if (exc.Message.Con
Websites Community Support ASP.NET Community Standup ForumsHelp Web Forms:Guidance Videos Samples Forum Books Open Source Getting Started Getting StartedGetting Started with ASP.NET 4.5 Web Forms and Visual Studio 20131. Getting Started with Web Forms and Visual Studio2. Create the Project3. Create the Data Access Layer4. UI and Navigation5. Display Data Items and Details6. Shopping Cart7. Checkout and Payment with PayPal8. Membership and https://msdn.microsoft.com/en-us/library/24395wz3.aspx Administration9. URL Routing10. ASP.NET Error HandlingIntroduction to ASP.NET Web FormsCreating a Basic Web Forms Page in Visual Studio 2013Creating ASP.NET Web Projects in Visual Studio 2013Code Editing ASP.NET Web Forms in Visual Studio 2013ASP.NET Scaffolding in Visual Studio 2013ASP.NET Web Forms (dotnetConf 2014)Using Page Inspector for Visual Studio 2012 https://www.asp.net/web-forms/overview/getting-started/getting-started-with-aspnet-45-web-forms/aspnet-error-handling in ASP.NET Web FormsVisual Studio 2012 Hands On LabsWhat's New in ASP.NET and Web Development in Visual Studio 2012What's New in Web Forms in ASP.NET 4.5Using Page Inspector in Visual Studio 2012Monitoring and TelemetryRoutingASP.NET 4 - RoutingASP.NET 4 - Defining RoutesASP.NET 4 - Constructing URLs from RoutesASP.NET 4 - Accessing URL Parameters in a PageJavaScript and Client FrameworksASP.NET 4 - Microsoft Ajax OverviewASP.NET AJAX Control Toolkit (maintained by DevExpress)Working with Data Getting Started with ASP.NET 4.5 Web FormsModel Binding and Web Forms in Visual Studio 20131. Retrieving and Displaying Data2. Updating, Deleting, and Creating Data3. Sorting, Paging, and Filtering Data4. Integrating JQuery UI Datepicker5. Using Query String Values to Filter Data6. Adding Business Logic LayerASP.NET 4 Web Forms - Validating User Input in a PageASP.NET 4 Web Forms - State ManagementASP.NET Data Access - Recommended ResourcesServer Data ControlsASP.NET 4 Data-Bound ControlsASP.NET 4 Data Source Control
Websites Community Support ASP.NET Community Standup ForumsHelp Web Forms:Guidance Videos Samples Forum Books http://www.asp.net/web-forms/overview/older-versions-getting-started/deploying-web-site-projects/processing-unhandled-exceptions-cs Open Source Older Versions - Getting Started Getting StartedGetting https://dusted.codes/demystifying-aspnet-mvc-5-error-pages-and-error-logging Started with ASP.NET 4.5 Web Forms and Visual Studio 20131. Getting Started with Web Forms and Visual Studio2. Create the Project3. Create the Data Access Layer4. UI and Navigation5. Display Data Items and Details6. Shopping Cart7. Checkout and Payment custom error with PayPal8. Membership and Administration9. URL Routing10. ASP.NET Error HandlingIntroduction to ASP.NET Web FormsCreating a Basic Web Forms Page in Visual Studio 2013Creating ASP.NET Web Projects in Visual Studio 2013Code Editing ASP.NET Web Forms in Visual Studio 2013ASP.NET Scaffolding in Visual Studio 2013ASP.NET Web Forms (dotnetConf 2014)Using Page custom error handling Inspector for Visual Studio 2012 in ASP.NET Web FormsVisual Studio 2012 Hands On LabsWhat's New in ASP.NET and Web Development in Visual Studio 2012What's New in Web Forms in ASP.NET 4.5Using Page Inspector in Visual Studio 2012Monitoring and TelemetryRoutingASP.NET 4 - RoutingASP.NET 4 - Defining RoutesASP.NET 4 - Constructing URLs from RoutesASP.NET 4 - Accessing URL Parameters in a PageJavaScript and Client FrameworksASP.NET 4 - Microsoft Ajax OverviewASP.NET AJAX Control Toolkit (maintained by DevExpress)Working with Data Getting Started with ASP.NET 4.5 Web FormsModel Binding and Web Forms in Visual Studio 20131. Retrieving and Displaying Data2. Updating, Deleting, and Creating Data3. Sorting, Paging, and Filtering Data4. Integrating JQuery UI Datepicker5. Using Query String Values to Filter Data6. Adding Business Logic LayerASP.NET 4 Web Forms - Validating User Input in a PageASP.NET 4 Web Forms - State ManagementASP.NET Data Access - Recommended ResourcesServer Dat
it as part of our official documentation for implementing custom error pages, we've decided to sponsor it. Visit elmah.io - Error Management for .NET web applications using ELMAH, powerful search, integrations with Slack and HipChat, Visual Studio integration, API and much more. Custom error pages and global error logging are two elementary and yet very confusing topics in ASP.NET MVC 5. There are numerous ways of implementing error pages in ASP.NET MVC 5 and when you search for advice you will find a dozen different StackOverflow threads, each suggesting a different implementation. Overview What is the goal? Typically good error handling consists of: Human friendly error pages Custom error page per error code (e.g.: 404, 403, 500, etc.) Preserving the HTTP error code in the response to avoid search engine indexing Global error logging for unhandled exceptions Error pages and logging in ASP.NET MVC 5 There are many ways of implementing error handling in ASP.NET MVC 5. Usually you will find solutions which involve at least one or a combination of these methods: HandleErrorAttribute Controller.OnException Method Application_Error event customErrors element in web.config httpErrors element in web.config Custom HttpModule All these methods have a historical reason and a justifyable use case. There is no golden solution which works for every application. It is good to know the differences in order to better understand which one is applied best. Before going through each method in more detail I would like to explain some basic fundamentals which will hopefully help in understanding the topic a lot easier. ASP.NET MVC Fundamentals The MVC framework is only a HttpHandler plugged into the ASP.NET pipeline. The easiest way to illustrate this is by opening the Global.asax.cs: public class MvcApplication : System.Web.HttpApplication Navigating to the implementation of HttpApplication will reveal the underlying IHttpHandler and IHtt