Preventing a dialog from closing in the button's click event handler

Question

I have a dialog that I show with .ShowDialog(). It has an OK button and a Cancel button; the OK button also has an event handler.

I want to

Answer 1

You can catch FormClosing an there force the form to remain opened. use the Cancel property of the event argument object for that.

e.Cancel = true;

and it should stop your form from closing.