Hi, first sorry for my bad english. I'm spanish and my english is very bad... Well, my question is:

I'm doing a logger in c# (for .NET Compact Framework) that not write a trace in file directly. The logger put the trace in a buffer, and when the buffer has at one particular size writes all traces in the file log.

The problem is when occurs a exception the buffer can have traces that
can not be write in the file because the buffer haven't the size appropiate.

How I know when an exception occurs if it's not controlled? Launch an event?
I try with a destructor in the class but not work.

Exists a class that can execute a method when a program exit?

Thanks

Esteban

Why not place a try-catch in the Main method of your application? The catch could just write out the exception details and then re-throw the exception.

Kep.

 I believe that my explication has been a little bad.

I want that the developer that uses the logger only call (for example) Logger.getLogger().entering("class","method",...) and he don't worry about nothing more. I don't want that the person at uses the logger have to catch the exception in his program for the correct operation of the logger.

I want that the logger knows when a exception has throw by any cause and then the logger write the rest of the buffer to the file.

I believe that when a exception throws, the garbage collector destroy the class but this not happen.

I'm looking for something like this:
In the constructor of the logger (the logger uses a singleton pattern for his creation), it registrates how listener of a event.
This event will be launch when a exception (anything exception) has throw in the source that uses the logger.
Then the looger at be registred like listener of this event can flush the buffer to the file.

I don't kwow if this can be possible or not.

Than you,

Esteban