Application Error Handling Wpf
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Exception Handling In Wpf
up Globally catch exceptions in a WPF application? up vote 149 down vote favorite 37 We are having a WPF application where parts of it may throw exceptions at runtime. I'd like to globally catch any unhandled exception and log them, but otherwise continue program execution as if nothing happened (kinda like VB's On Error Resume Next). Is this possible in C#? And wpf application exception handler if so, where exactly would I need to put the exception handling code? Currently I can't see any single point where I could wrap a try/catch around and which would catch all exceptions that could occur. And even then I would have left whatever has been executed because of the catch. Or am I thinking in horribly wrong directions here? ETA: Because many people below pointed it out: The application is not for controlling nuclear power plants. If it crashes it's not that much a big deal but random exceptions that are mostly UI-related are a nuisance in the context where it would be used. There were (and probably still are) a few of those and since it uses a plugin architecture and may be extended by others (also students in that case; so no experienced developers that are able to write completely error-free code). As for the exceptions that get caught: I do log them to a log file, including the complete stack trace. That was the whole point of that exercise. Just to counter those people that were taking my analogy to VB's OER
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Wcf Error Handling
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Silverlight Error Handling
1 second. System.Windows Application Class Application Events Application Events DispatcherUnhandledException Event DispatcherUnhandledException Event DispatcherUnhandledException Event Activated Event Deactivated Event DispatcherUnhandledException Event Exit Event FragmentNavigation Event LoadCompleted Event http://stackoverflow.com/questions/793100/globally-catch-exceptions-in-a-wpf-application Navigated Event Navigating Event NavigationFailed Event NavigationProgress Event NavigationStopped Event SessionEnding Event Startup Event 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. Application.DispatcherUnhandledException Event .NET Framework (current version) Other Versions Visual Studio 2010 https://msdn.microsoft.com/en-us/library/system.windows.application.dispatcherunhandledexception(v=vs.110).aspx .NET Framework 4 Visual Studio 2008 .NET Framework 3.5 .NET Framework 3.0 Occurs when an exception is thrown by an application but not handled.Namespace: System.WindowsAssembly: PresentationFramework (in PresentationFramework.dll)Syntax C#C++F#VB Copy public event DispatcherUnhandledExceptionEventHandler DispatcherUnhandledException RemarksBy default, Windows Presentation Foundation (WPF) catches unhandled exceptions, notifies users of the exception from a dialog box (from which they can report the exception), and automatically shuts down an application.However, if an application needs to perform custom unhandled exception processing from a centralized location, you should handle DispatcherUnhandledException.DispatcherUnhandledException is raised by an Application for each exception that is unhandled by code running on the main UI thread.If an exception is not handled on either a background user interface (UI) thread (a thread with its own Dispatcher) or a background worker thread (a thread without a Dispatcher), the exception is not forwarded to the main UI thread. Consequently, DispatcherUnhandledException is not raised. In these circumstances, you will need to write code to do the following:Handle exce
Windows Presentation Foundation (WPF) Question 1 Sign in to vote Hi all, I am using Enterprise Library 4.0 in https://social.msdn.microsoft.com/Forums/vstudio/en-US/b28950d4-b1c8-4a78-9fdf-e147dac7927c/error-handling-in-wpf-application-level?forum=wpf my WPF application for logging and throwing errors (customized). For all this I have to using try.,catch in all the places. Is there any better idea, catch the all the exception using a function or setting attributes for a function like [CatchException] private void FunctionFoo() { // do something // do something which may throw exception } Thanks error handling in advanceCastle Rider In the jungle the mighty jungle The lion sleeps tonight... Monday, November 22, 2010 4:07 AM Reply | Quote Answers 0 Sign in to vote Thanks for asking. Actually, the above solutions given by others are standard but it is not helping for my business need. I found another workaround. First, I gathered application error handling the places where I am handling exception. Mostly they are DB Connectivity related. So I wrote a class ResultData with Data,Message and Status (enum Sucess/Failed ) as property. I wrote a function to execute DB request where I would catch all the exception. If exception occurs I set Status = Failed and Message = ex.Message . So, in the application I just check for Status. This solved my problem but in a different way.Castle Rider In the jungle the mighty jungle The lion sleeps tonight... Marked as answer by Sheldon _XiaoModerator Wednesday, December 01, 2010 5:02 AM Tuesday, November 30, 2010 3:35 AM Reply | Quote All replies 1 Sign in to vote Write this code in App.xaml.cs, it will catch your all exception of your application. protected override void OnStartup(StartupEventArgs e) {
System.Windows. Application.Current.DispatcherUnhandledException += new System.Windows.Threading.DispatcherUnhandledExceptionEventHandler(Current_DispatcherUnhandledException); } void Current_DispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e){ MessageBox.Show(e.Exception.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error); e.Handled = true; } Thanks Shrey Chouhan http://shreychouhan.blogspot.com/ Shrey Chouhan shreychouhan_1984@yahoo.co.in http://shreychouhan.blogspot.com/ Proposed as