program thread won't exit VB.NET

[seraieis]

I'm working on developing an application that has several BackgroundWorke rs. If I use any of the functions that use one of the workers, when I go to close the application, the process stays running in the background. I have to go into Task Manager to exit it, which I can't expect users to do.

Does anyone have any suggestions as to why this is happening? I've tried everything I can think of, including aborting the threads, and calling .Dispose() on them.

Any help would be greatly appreciate!

[Plater]

One of your background threads is still running. You should work to isolate which one it is, and go through and make sure you don't have any try/catch blocks that would ignore the ThreadAbortExce ption

[seraieis]

I went through the code and modified the try/catch blocks to display all exceptions, rather than handling them. That background worker is still going after I close the program.

What makes this even weirder, is that in the FormClosing event, when I checked the workers IsBusy property, they all return False.

Is there a way to access the thread behind the backgroundworke r and force it to abort?

[Plater]

I've never used them, I prefer threads and timer threads, so I am not sure.

Does .WorkerSupports Cancellation = true? I would think you could just .Dispose() of them. (Maybe call CancelAsync() first?)

[seraieis]

I tried that also and it doesn't cancel the thread.

I'll try rewriting it so that it uses threads, rather than BackgroundWorke rs. I'll let you know how it goes!

[Plater]

I think for backgroundworke rs you need to call Application.DoE vents() to get it to finalize