private void BtnPasswordTest_OnClick(object sender, RoutedEventArgs e)
        {
            var passwordWindow = new PasswordTestWindow {
                Owner = this
            };

            passwordWindow.Show();
        }
 private void BtnPasswordTest_OnClick(object sender, RoutedEventArgs e)
 {
     var passwordWindow = new PasswordTestWindow { Owner = this };
     passwordWindow.Show();
 }