Close() with MessageBoxResult isn't implemented

[Difegue]

Describe the bug

Overriding OnButtonClick() in the WPFUI MessageBox doesn't allow me to just call Close(), throwing an InvalidOperationException asking me to use the version with MessageBoxResult.

Which would be fine... if that method existed? MessageBox doesn't seem to have a Close(MessageBoxResult) method implemented, instead relying on the WPF Close() internally.

To Reproduce

Try subclassing MessageBox and overriding OnButtonClick()

Expected behavior

Being able to Close() the popup myself without having to downcast to Window

Screenshots

No response

OS version

Irrelevant

.NET version

Irrelevant

WPF-UI NuGet version

3.0.3

Additional context

wpfui/src/Wpf.Ui/Controls/MessageBox/MessageBox.cs

Line 302 in bf3c4a6

[Obsolete($"Use {nameof(Close)} with MessageBoxResult instead")]

https://github.com/lepoco/wpfui/blob/development/src/Wpf.Ui/Controls/MessageBox/MessageBox.cs#L302