How to hook up cancel query event

Meidi

I want to do some clean up work after I hit the cancel query button. How do I call a function after this red button clicked?

nescafe

Do you specifically want to catch the red button? I'm not sure how to do that..

If you want to clean up after query run, both cancelled and failed:

// If you hit cancel within two seconds, a message box will be shown.

bool completed = false;
Util.Cleanup += (o, e) => { if (!completed) MessageBox.Show("Query cancelled."); };
Thread.Sleep(2000);
completed = true;

Source: http://forum.linqpad.net/discussion/906/kill-a-process-on-hitting-stop-button

Or:

bool completed = false;
try
{
  Thread.Sleep(2000);
  completed = true;
}
finally
{
  if (!completed)
  {
    MessageBox.Show("Query cancelled.");
  }
}