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c#wpfwinformsesc-key

How to close only single dialog on ESC key in WPF/WinForms?

I have a WPF form. It handles the KeyUp event and if the released key was Escape, it closes itself.

Also this form has a button to show some Windows Form as a dialog. It does handle the Escape key in the same way.

What happens is that when I press Escape when in the child dialog, both windows close. I expect only the child Windows Forms window to close in this case.

What's the proper way to handle this?

Solution

  • The easiest option for WPF is set the button property IsCancel to true. Then if you press ESC the form would be closed.