private void OnHelpNavLeft()

in Games/TwoZeroFourEight/MainPage.xaml.cs [1071:1116]
44 lines of code
7 McCabe index (conditional complexity)

        private void OnHelpNavLeft(object sender, RoutedEventArgs e)
        {
            if (HelpScreen1.Visibility == Visibility.Visible)
            {
                HelpNavLeftButton.IsEnabled = false;
                HelpNavRightButton.IsEnabled = true;
            }
            else if (HelpScreen2.Visibility == Visibility.Visible)
            {
                HelpScreen2.Visibility = Visibility.Collapsed;
                HelpScreen1.Visibility = Visibility.Visible;
                HelpNavLeftButton.IsEnabled = false;
                HelpNavRightButton.IsEnabled = true;
            }
            else if (HelpScreen3.Visibility == Visibility.Visible)
            {
                HelpScreen3.Visibility = Visibility.Collapsed;
                HelpScreen2.Visibility = Visibility.Visible;
                HelpNavLeftButton.IsEnabled = true;
                HelpNavRightButton.IsEnabled = true;
            }

            else if (HelpScreen4.Visibility == Visibility.Visible)
            {
                HelpScreen4.Visibility = Visibility.Collapsed;
                HelpScreen3.Visibility = Visibility.Visible;
                HelpNavLeftButton.IsEnabled = true;
                HelpNavRightButton.IsEnabled = true;
            }

            else if (HelpScreen5.Visibility == Visibility.Visible)
            {
                HelpScreen5.Visibility = Visibility.Collapsed;
                HelpScreen4.Visibility = Visibility.Visible;
                HelpNavLeftButton.IsEnabled = true;
                HelpNavRightButton.IsEnabled = true;
            }
            else if (HelpScreen6.Visibility == Visibility.Visible)
            {
                HelpScreen6.Visibility = Visibility.Collapsed;
                HelpScreen5.Visibility = Visibility.Visible;
                HelpNavLeftButton.IsEnabled = true;
                HelpNavRightButton.IsEnabled = true;
            }
            FixHelp();
        }