This is a follow up to my initial question and I would like to present my findings and ask for corrections, ideas and insights. My findings (or rather interpretations) come from people's answers to my previous question, reading MSDN .NET 3.5 documentation and debugging .NET 3.5 code. I hope this will be of value to someone who was wondering like me how to detect when an application terminates.
Events:
System.AppDomain.CurrentDomain.ProcessExit
: raised when process exits, e.g. after the defaultAppDomain
and everything else was unloaded [Total execution time is limited to just 3 seconds!]. For WPF, useSystem.Windows.Application.Exit
instead. For Windows Forms, run code afterApplication.Run(...)
in main method.System.AppDomain.CurrentDomain.DomainUnload
: raised when anAppDomain
other than defaultAppDomain
unloads, e.g. when running classes with unit testing frameworks (MbUnit with TestDriven.NET).System.AppDomain.CurrentDomain.UnhandledException
: (if handled in defaultAppDomain
:) raised for any unhandled exception in any thread, no matter whatAppDomain
the thread started in. This means, this can be used as the catch-all for all unhandled exceptions.System.Windows.Application.Exit
: raised when WPF application (i.e. the defaultAppDomain
) exits gracefully. OverrideSystem.Windows.Application.OnExit
to take advantage of it.Finalizers (destructors in C#): run when garbage collector frees unmanaged resources. [Total execution time is limited!].
Order of events:
WPF application: graceful exit
System.Windows.Application.Exit
System.AppDomain.CurrentDomain.ProcessExit
- Finalizers
WPF application: unhandled exception
System.AppDomain.CurrentDomain.UnhandledException
MbUnit running inside TestDriven.NET: passed test (graceful exit)
System.AppDomain.CurrentDomain.DomainUnload
- Finalizers
MbUnit running inside TestDriven.NET: failed test (unhandled exceptions are handled by MbUnit)
AppDomain.CurrentDomain.DomainUnload
- Finalizers
Questions:
- Are my interpretations/findings correct?
- Do you know of more details that I have left out? E.g. what is the total execution time for finalizers?
- Do you know of any other events / ideas that I be aware of?
- What events are there and what order do they get raised in other applications, e.g. Windows Forms, Web Service, ASP.NET web site, etc?