I play about with VB.NET 2005 when I have a project to do. I wouldn't say I'm particularly experienced with threads and GUIs though, but that's never stopped me.
I have menu item that opens a window with "Start", "Pause", "Abort" buttons, and a text box.
On clicking "Start" the program does the following
AbortOperation = false
I = 1
Loop
I = I + 1
Display I into the text box
Until I > 10000 or AbortOperation = True
End
On clcking the "Abort" button
AbortOperation = true
Display "Aborted"" in the textbox
end
The idea being that Abort Button is to stop the processing.
If I click "Abort" nothing happens immediatley,
but the "Aborted" message is displayed when the loop finished.
It seems the Abort click is being queue somewhere and not imediataley interrupting the loop.
You need to make the application multithread compatible. Its gonna be kinda long if I explain it here so i would suggest you google on Multithreading for VB.NET or read any similar article like the following http://www.devx.com/DevX/10MinuteSolution/20365
You could also try a 'DoEvents' anywhere within your loop - this basically tells your loop to check whats going on with the rest of the PC before continuing on - sort of lets it 'take a breath'. VB loops always seem to hog the processor!!
