public static async Task <MessageBoxResult> Show(Window parent, string title, string text)
{
var messageBoxView = new MessageBoxView {
Title = title
};
messageBoxView.FindControl <TextBlock>("Text").Text = text;
var buttonPanel = messageBoxView.FindControl <StackPanel>("Buttons");
var result = MessageBoxResult.Cancel;
void AddButton(string caption, MessageBoxResult r)
{
var button = new Button {
Content = caption
};
button.Click += (_, __) =>
{
result = r;
messageBoxView.Close();
};
buttonPanel.Children.Add(button);
result = r;
}
AddButton("Ok", MessageBoxResult.Yes);
AddButton("Cancel", MessageBoxResult.Cancel);
await messageBoxView.ShowDialog(parent);
return(result);
}
private async void WhenClosing(object?o, CancelEventArgs args)
{
var vm = (MainWindowViewModel)DataContext;
if (vm.Score.ScorePagesVM.Count == 0)
{
return;
}
args.Cancel = true;
var result =
await MessageBoxView.Show(this, "Closing ?", "You may have unsaved work. Do you really want to exit ?");
if (result != MessageBoxView.MessageBoxResult.Yes)
{
return;
}
Closing -= WhenClosing;
Close();
}
