C# Validate before leaving accept_button event
问题 Excuse me if this is a silly question but i'm a beginer here. I have a simply custom dialog with two buttons: Accept and Cancel. The Accept button is the acceptButton of the form. I want to do some validations on the Accept_Click event and decide if i can close the dialog or not, but everytime it leaves this method, the dialog automatically closes itself and returns Ok. What can I do to stop the dialog from closing itself? or i have to do things in some other way? thanks 回答1: I would have a