C# Fatal Error Handling
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow php fatal error handling the company Business Learn more about hiring developers or posting ads with us Stack
System Halted Fatal Error Handling
Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community fatal error catch of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to descern fatal from non fatal .NET Exceptions up vote 3 down vote favorite 1 I'm c# fatal error encountered during command execution writing a general discrete event system simulation library in C#. I'm going to write another library on top of that which will implement a specific kind of discrete event sim. Here is an integral version of the code. static class Engine { [ThreadStatic] internal static uint time; //... public static void Run(OnException onException = OnException.PauseAndRethrow, IList
Php Catch Fatal Error And Continue
break; try { e.Activate(); } catch (EngineException ex) { // An engine method that shouldn't have been called // was called, and Activate didn't handle that // handle this situation... } catch (/* fatal exception type*/ ex) { throw; } catch (Exception ex) { // code to decides whether to dismiss exception // pause, stop, reset based on parameters to this method } } } } The question is: Should I specifically catch Exception types that are known to be unrecoverable (that I shouldn't try to handle in any way). What are those Exceptions (I can think of OutOfMemoryException and StackOverflowException). Is there a list of fatal Exceptions? As I remember some of them are uncatchable. So I am interested in a list of fatal Exceptions that can be caught. I just want to rethrow them, and not do anything. On the other hand I want to handle any other type of Exception. Or maybe I need another angle on this. EDIT: OK, I've made a huge oversight when writing the question. Activate() is abstract. I am writing a general purpose discrete event system simulation library. The engine is working with totally unknown subclasses of Event. So it is calling an absolutely unknown method Activate(), that could throw any kind of exception. I
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 exception handling c# Samples We’re sorry. The content you requested has been removed. You’ll be auto .net exception handling best practices redirected in 1 second. General Reference for the .NET Framework Design Guidelines for Developing Class Libraries Design Guidelines for Exceptions
Exception Handling Definition
Design Guidelines 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 http://stackoverflow.com/questions/14201705/how-to-descern-fatal-from-non-fatal-net-exceptions Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is 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 https://msdn.microsoft.com/en-us/library/ms229005(v=vs.100).aspx 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 cases when handling errors in applications is acceptable, but such cases are rare.An application should not handle exceptions that can result in an unexpected or exploitable state. If you cannot predict all possible causes of an exception and ensure that malicious code cannot exploit the resulting application state, you should allow the application to terminate instead of handling the exception.Do not exclude any special exceptions when catching for the purpose of transferring exceptions.Instead of creating lists of special exceptions in your catch clauses, you should catch only those exceptions that you can le
.NET Framework > Visual C# Question 0 Sign in to vote I have a top-level exception https://social.msdn.microsoft.com/Forums/vstudio/en-US/21ee268e-ff59-4831-901a-0d42c44ac71e/simulating-a-fatal-exception?forum=csharpgeneral handler for my WinForms app that I'd like to test, but https://msdn.microsoft.com/en-us/library/system.exception(v=vs.110).aspx in order to do so (fully), I need generate/simulate a fatal exception (i.e. an exception which is caught but can't be ignored and causes the application to crash.) Thread.CurrentThread.Abort() doesn't seem to be the right choice, does it? I'm only working with fatal error the main and UI threads. Any thoughts? Here's my code inside program.cs: [STAThread] static void Main() { CustomExceptionHandler exHandler = new CustomExceptionHandler(); Application.ThreadException += new ThreadExceptionEventHandler(exHandler.OnThreadException); Application.Run(new frmController()); } internal class CustomExceptionHandler { public void OnThreadException(object sender, ThreadExceptionEventArgs t) { // Log the exception ExceptionLogger.LogException(t.Exception); try { // Exit the program if the fatal error handling user clicks Abort. DialogResult result = ShowThreadExceptionDialog(t.Exception); if (result == DialogResult.Abort) { Application.Exit(); } // Otherwise try to continue program execution } catch { // Fatal error, terminate program try { MessageBox.Show("Fatal Error", "Fatal Error", MessageBoxButtons.OK, MessageBoxIcon.Stop); } finally { Application.Exit(); } } } private DialogResult ShowThreadExceptionDialog(Exception ex) { string errorMessage = "Unhandled Exception: " + Environment.NewLine + Environment.NewLine + ex.Message + Environment.NewLine + Environment.NewLine + ex.GetType() + Environment.NewLine + Environment.NewLine + "Stack Trace" + Environment.NewLine + ex.StackTrace; return MessageBox.Show(errorMessage, "Application Error", MessageBoxButtons.AbortRetryIgnore, MessageBoxIcon.Stop); } } // End inner class Tuesday, December 05, 2006 8:02 PM Reply | Quote Answers 0 Sign in to vote Do you want to simulate the circumstances behind certain fatal exceptions? Or just test if the exceptions are handled by your handler? If it's the later, just use "throw": "throw new AccessViolationException("some message");" or "throw new OutOfMemoryException("some message");" or "throw new StackOverflowException("some other message");". Wednesday, December 06, 2006 1:03 AM Reply | Qu
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. .NET Framework 4.6 and 4.5 .NET Framework Class Library System System Exception Class Exception Class Exception Class _AppDomain Interface AccessViolationException Class Action Delegate Action(T) Delegate Action(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10) Delegate Action(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11) Delegate Action(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12) Delegate Action(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13) Delegate Action(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14) Delegate Action(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15) Delegate Action(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16) Delegate Action(T1, T2) Delegate Action(T1, T2, T3) Delegate Action(T1, T2, T3, T4) Delegate Action(T1, T2, T3, T4, T5) Delegate Action(T1, T2, T3, T4, T5, T6) Delegate Action(T1, T2, T3, T4, T5, T6, T7) Delegate Action(T1, T2, T3, T4, T5, T6, T7, T8) Delegate Action(T1, T2, T3, T4, T5, T6, T7, T8, T9) Delegate ActivationContext Class ActivationContext.ContextForm Enumeration Activator Class AggregateException Class AppContext Class AppDomain Class AppDomainInitializer Delegate AppDomainManager Class AppDomainManagerInitializationOptions Enumeration AppDomainSetup Class AppDomainUnloadedException Class ApplicationException Class ApplicationId Class ApplicationIdentity Class ArgIterator Structure ArgumentException Class ArgumentNullException Class ArgumentOutOfRangeException Class ArithmeticException Class Array Class ArraySegment(T) Structure ArrayTypeMismatchException Class AssemblyLoadEventArgs Class AssemblyLoadEventHandler Delegate AsyncCallback Delegate Attribute Class AttributeTargets Enumeration AttributeUsageAttribute Class BadImageFormatException Class Base64FormattingOptions Enumeration BitConverter Class Boolean Structure Buffer Class Byte Structure CannotUnloadAppDomainException Class Char Structure CharEnumerator Class CLSCompliantAttribute Class Comparison(T) Delegate Console Class ConsoleCancelEventArgs Class ConsoleCancelEventHandler Delegate ConsoleColo