Custom Error Page Asp.net Example
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Custom Error Page Template
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Asp.net Mvc Error Handling
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. 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
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Asp.net Error Handling Best Practices
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Questions JavaScript Tutorials MSDN Communities Hub Official Docs Security Stump the SQL Guru! Web Hosts XML Information: Advertise Feedback Author an Article Published: Wednesday, September 6, 2006 Gracefully Responding to Unhandled Exceptions - http://www.4guysfromrolla.com/articles/090606-1.aspx Displaying User-Friendly Error Pages By Scott Mitchell Introduction In .NET applications, an illegal operation - an invalid cast, attempting to reference a null value, trying to connect to a database that's been taken offline, and so on - raises an exception. Exceptions can be caught and handled directly in code through the use of Try / Catch blocks. For ASP.NET applications, if the exception is custom error not handled in code, it bubbles up to the ASP.NET runtime, which raises an HttpUnhandledException. By default, unhandled exceptions result in a page that displays the text, "Runtime Error" with instructions for developers on how to display exception details (see the screen shot to the right). This "Runtime Error" error page is what is seen by external visitors; if you visit your site through localhost and custom error page an unhandled exception occurs, the default error page includes the type and details of the exception thrown. [View a screenshot] End users will no doubt find the "Runtime Error" page to be intimidating and confusing - do you think the average computer user knows what "Runtime" means? All the user knows is that something went horribly wrong. They might fear that their data or progress has been lost and that they are responsible for the error. Ironically, the person who does care that an unhandled exception has occurred - the developer - is left out of the loop unless the end user takes the time to email the developer the details of the error (what page it happened on, the steps the user had performed that caused the error, and so on). Fortunately, ASP.NET provides solutions to these two problems. An ASP.NET application can be configured to automatically redirect the user to a less-intimidating page that explains that there has been a problem. This custom, user-friendly error page can omit such lingo like "Runtime" and have its look and feel match the website's. Additionally, there are techniques available to log and alert the d