public void CheckLang()

in Getting Started/Concepts/samps/animateheight_samp.xaml.cs [15:169]
150 lines of code
20 McCabe index (conditional complexity)

        public void CheckLang(object sender, EventArgs e)
        {
            if (xcsharpCheck.Content == null) // grays out xaml + c# tab
            {
                xamlcsharp.Background = Brushes.Gainsboro;
                xamlcsharp.Foreground = Brushes.White;
                _ttp = new ToolTip();
                ToolTipService.SetShowOnDisabled(xamlcsharp, true);
                _ttp.Content = "This sample is not available in XAML + C#.";
                xamlcsharp.ToolTip = (_ttp);
                xamlcsharp.IsEnabled = false;
            }
            else if (xcsharpCheck.Content != null)
            {
                xamlcsharp.IsEnabled = true;
            }

            if (xvbCheck.Content == null) // grays out xaml + vb tab
            {
                xamlvb.Background = Brushes.Gainsboro;
                xamlvb.Foreground = Brushes.White;
                _ttp = new ToolTip();
                ToolTipService.SetShowOnDisabled(xamlvb, true);
                _ttp.Content = "This sample is not available in XAML + Visual Basic.NET";
                xamlvb.ToolTip = (_ttp);
                xamlvb.IsEnabled = false;
            }
            else if (xvbCheck.Content != null)
            {
                xamlvb.IsEnabled = true;
            }

            if (xaml.Content == null) // grays out xaml
            {
                xaml.IsEnabled = false;
                xaml.Background = Brushes.Gainsboro;
                xaml.Foreground = Brushes.White;
                _ttp = new ToolTip();
                ToolTipService.SetShowOnDisabled(xaml, true);
                _ttp.Content = "This sample is not available in XAML.";
                xaml.ToolTip = (_ttp);
            }
            else if (xaml.Content != null)
            {
                xaml.IsEnabled = true;
            }

            if (csharp.Content == null) // grays out c#
            {
                csharp.IsEnabled = false;
                csharp.Background = Brushes.Gainsboro;
                csharp.Foreground = Brushes.White;
                _ttp = new ToolTip();
                ToolTipService.SetShowOnDisabled(csharp, true);
                _ttp.Content = "This sample is not available in C#.";
                csharp.ToolTip = (_ttp);
            }
            else if (csharp.Content != null)
            {
                csharp.IsEnabled = true;
            }

            if (vb.Content == null) // grays out vb
            {
                vb.IsEnabled = false;
                vb.Background = Brushes.Gainsboro;
                vb.Foreground = Brushes.White;
                _ttp = new ToolTip();
                ToolTipService.SetShowOnDisabled(vb, true);
                _ttp.Content = "This sample is not available in Visual Basic.NET.";
                vb.ToolTip = (_ttp);
            }
            else if (vb.Content != null)
            {
                vb.IsEnabled = true;
            }

            if (managedcpp.Content == null) // grays out cpp
            {
                managedcpp.IsEnabled = false;
                managedcpp.Background = Brushes.Gainsboro;
                managedcpp.Foreground = Brushes.White;
                _ttp = new ToolTip();
                ToolTipService.SetShowOnDisabled(managedcpp, true);
                _ttp.Content = "This sample is not available in Managed C++.";
                managedcpp.ToolTip = (_ttp);
            }
            else if (managedcpp.Content != null)
            {
                managedcpp.IsEnabled = true;
            }
            if (Welcome.Page1.MyDouble == 1) // XAML only
            {
                xaml.Visibility = Visibility.Visible;
                csharp.Visibility = Visibility.Collapsed;
                vb.Visibility = Visibility.Collapsed;
                managedcpp.Visibility = Visibility.Collapsed;
                xamlcsharp.Visibility = Visibility.Collapsed;
                xamlvb.Visibility = Visibility.Collapsed;
            }
            else if (Welcome.Page1.MyDouble == 2) // CSharp
            {
                csharp.Visibility = Visibility.Visible;
                xaml.Visibility = Visibility.Collapsed;
                vb.Visibility = Visibility.Collapsed;
                managedcpp.Visibility = Visibility.Collapsed;
                xamlcsharp.Visibility = Visibility.Collapsed;
                xamlvb.Visibility = Visibility.Collapsed;
            }
            else if (Welcome.Page1.MyDouble == 3) // Visual Basic
            {
                vb.Visibility = Visibility.Visible;
                xaml.Visibility = Visibility.Collapsed;
                csharp.Visibility = Visibility.Collapsed;
                managedcpp.Visibility = Visibility.Collapsed;
                xamlcsharp.Visibility = Visibility.Collapsed;
                xamlvb.Visibility = Visibility.Collapsed;
            }
            else if (Welcome.Page1.MyDouble == 4) // Managed CPP
            {
                managedcpp.Visibility = Visibility.Visible;
                xaml.Visibility = Visibility.Collapsed;
                csharp.Visibility = Visibility.Collapsed;
                vb.Visibility = Visibility.Collapsed;
                xamlcsharp.Visibility = Visibility.Collapsed;
                xamlvb.Visibility = Visibility.Collapsed;
            }
            else if (Welcome.Page1.MyDouble == 5) // No Filter
            {
                xaml.Visibility = Visibility.Visible;
                csharp.Visibility = Visibility.Visible;
                vb.Visibility = Visibility.Visible;
                managedcpp.Visibility = Visibility.Visible;
                xamlcsharp.Visibility = Visibility.Visible;
                xamlvb.Visibility = Visibility.Visible;
            }
            else if (Welcome.Page1.MyDouble == 6) // XAML + CSharp
            {
                xaml.Visibility = Visibility.Collapsed;
                csharp.Visibility = Visibility.Collapsed;
                vb.Visibility = Visibility.Collapsed;
                managedcpp.Visibility = Visibility.Collapsed;
                xamlcsharp.Visibility = Visibility.Visible;
                xamlvb.Visibility = Visibility.Collapsed;
            }
            else if (Welcome.Page1.MyDouble == 7) // XAML + VB
            {
                xaml.Visibility = Visibility.Collapsed;
                csharp.Visibility = Visibility.Collapsed;
                vb.Visibility = Visibility.Collapsed;
                managedcpp.Visibility = Visibility.Collapsed;
                xamlcsharp.Visibility = Visibility.Collapsed;
                xamlvb.Visibility = Visibility.Visible;
            }
        }