Application.exit() vs Environment.exit(-1) vs Application.exitthread()

[Brendan Miller]

I am trying to close my application using Application.exit() in the
frmMain_Closing event. When the form closes the process does not. My
application only has one form (no other classes either). The form has
a really long loop which generates approx. 700 .csv files. I do not create
any threads myself (Application.exitthread() doesn't work either).
To counteract this I have decided to use the Environment.exit(-1)
method instead.

What is the difference between the three methods?

Using environment.exit() seems a strange way to do things considering there
is a Application.exit method which claims to do what the Environment.exit()
method does.

 

[Jon Skeet [C# MVP]]

I am trying to close my application using Application.exit() in the
frmMain_Closing event. When the form closes the process does not. My
application only has one form (no other classes either). The form has
a really long loop which generates approx. 700 .csv files. I do not create
any threads myself (Application.exitthread() doesn't work either).

Well that's the first problem - you *should* me creating a separate
thread to do your main processing. You should test a flag in that
thread every so often to see whether or not you should exit, and set
that flag in your closing event.

To counteract this I have decided to use the Environment.exit(-1)
method instead.

What is the difference between the three methods?

Application.Exit is to do with message pumps - it effectively means
that Application.Run(...) will return at that point.

Application.ExitThread is similar to Application.Exit, but only for the
message pump on the current thread.

Using environment.exit() seems a strange way to do things considering there
is a Application.exit method which claims to do what the Environment.exit()
method does.

No it doesn't. How is:

<quote>
This method stops all running message loops on all threads and closes
all windows of the application. This method does not force the
application to exit.
</quote>

the same as

<quote>
Terminates this process and gives the underlying operating system the
specified exit code.
</quote>

? Where is the claim you were talking about?