Error Handling .net 4.0
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 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 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 Controls OverviewASP.NET 4.5 Chart ControlRecommended Resources for ASP.NET Data AccessSecurity, Authentication, and Authori
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 https://www.asp.net/web-forms/overview/getting-started/getting-started-with-aspnet-45-web-forms/aspnet-error-handling 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 https://msdn.microsoft.com/en-us/library/24395wz3.aspx 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.Contains("NoCatch") || exc.Me
resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft Student Partners ISV Startups https://msdn.microsoft.com/en-us/library/ms229005(v=vs.100).aspx TechRewards Events Community Magazine Forums Blogs Channel 9 Documentation APIs http://www.codeproject.com/Articles/10593/Error-Handling-in-ASP-NET 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. General Reference for the .NET Framework Design Guidelines for Developing Class Libraries Design Guidelines for Exceptions Design Guidelines error handling for Exceptions Exception Handling Exception Handling Exception Handling Exception Throwing Exception Handling Catching and Throwing Standard Exception Types Designing Custom Exceptions Exceptions and Performance 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 error handling .net not being maintained. This documentation is archived and is not being maintained. Exception Handling Visual Studio 2010 Other Versions Visual Studio 2008 .NET Framework 3.5 .NET Framework 3.0 .NET Framework 2.0 The following guidelines help ensure that your library handles exceptions appropriately.Do not handle errors by catching non-specific exceptions, such as System.Exception, System.SystemException, and so on, in framework code.You can catch exceptions when the purpose of catching the exception is to re-throw or transfer the exception to a different thread. The following code example demonstrates incorrect exception handling. C#C++VB Copy public class BadExceptionHandlingExample1 { public void DoWork() { // Do some work that might throw exceptions. } public void MethodWithBadHandler() { try { DoWork(); } catch (Exception e) { // Handle the exception and // continue executing. } } } Avoid handling errors by catching non-specific exceptions, such as System.Exception, System.SystemException, and so on, in application code. There are ca
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