public static void MyOwnWindowClosing(object sender, CancelEventArgs e)
{
ICanCloseCheck q = GetCanCloseCheck((Window)sender);
ICanCloseResult p = GetCanCloseCheckParameter((Window)sender);
if (q == null || p == null)
{
return;
}
q.CheckCanClose(p);
e.Cancel = p.Cancel;
}
public void CheckCanClose(ICanCloseResult result)
{
CheckCanCloseAction?.Invoke(result);
}
public static void SetCanCloseCheckParameter(DependencyObject sender, ICanCloseResult value) => sender.SetValue(CanCloseCheckParameterProperty, value);