public class ContextMenu
{
    private bool LockDeactivated;

    public async Task ShowDialogAsync(CornerRadius Corners)
    {
        Show();
        while (!LockDeactivated){ await Task.Delay(100); }
    }


    private void StackPanel_MouseUp(object sender, MouseButtonEventArgs e)
    {
        LockDeactivated = true;
        Close();
    }

    private void Window_Deactivated(object sender, EventArgs e)
    {
        if (!LockDeactivated) { Close(); }
    }

}