C#簡略化if/switchテーブル駆動法の最適化

    public partial class MainWindow : Window

    {

        Dictionary<string, Type> WindowList = new Dictionary<string, Type>();

        public MainWindow()

        {

            InitializeComponent();

            this.AddHandler(Button.ClickEvent, new RoutedEventHandler(Btn_Click));

            LoadDic();

        }



        void LoadDic()

        {

            Type decoratorType = typeof(DecoratorWindow);

            Type viewboxType = typeof(ViewboxWindow);

            Type valueType = typeof(ValueWindow);

            Type lineType = typeof(LineWindow);

            Type winStartType = typeof(WinStartWindow);

            Type mp3Type = typeof(Mp3Window);

            Type socketType = typeof(SocketWindow);

            Type tagType = typeof(TagWindow);

            Type txtType = typeof(TXTWindow);

            Type QQType = typeof(QQWindow);

            Type transformType = typeof(TransformWindow);

            Type image3DWallType = typeof(Image3DWallWindow);

            Type transType = typeof(TransWindow);

            Type weatherType = typeof(WeatherWindow);

            Type datagridType = typeof(DatagridWindow);

            Type versionType = typeof(VersionWindow);

            WindowList.Add("Decorator", decoratorType);

            WindowList.Add("Viewbox", viewboxType);

            WindowList.Add("Value", valueType);

            WindowList.Add("Line", lineType);

            WindowList.Add("WinStart", winStartType);

            WindowList.Add("Mp3", mp3Type);

            WindowList.Add("Socket", socketType);

            WindowList.Add("Tag", tagType);

            WindowList.Add("TXT", txtType);

            WindowList.Add("QQ", QQType);

            WindowList.Add("Transform", transformType);

            WindowList.Add("Image3DWall", image3DWallType);

            WindowList.Add("Trans", transType);

            WindowList.Add("Weather", weatherType);

            WindowList.Add("Datagrid", datagridType);

            WindowList.Add("Version", versionType);

        }

        private void Btn_Click(object sender, RoutedEventArgs e)

        {

            Window window = (Window) Activator.CreateInstance(WindowList[(e.OriginalSource as Button).Tag.ToString()]);

            window.ShowDialog();

        }

    }

}

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

            this.AddHandler(Button.ClickEvent,new RoutedEventHandler(Button_Click));

        }



        private void Button_Click(object sender, RoutedEventArgs e)

        {

            if ((e.OriginalSource as Button).Tag.ToString() == null) ;

            else

            {
　　　　　　　　　 Window window = WindowList[(e.OriginalSource as Button).Tag.ToString()];　　

                switch ((e.OriginalSource as Button).Tag.ToString())

                {

                    case "Decorator":

                        window = new DecoratorWindow();

                        break;

                    case "Viewbox":

                        window = new ViewboxWindow();

                        break;

                    case "Value":

                        window = new ValueWindow();

                        break;

                    case "Line":

                        window = new LineWindow();

                        break;

                    case "WinStart":

                        window = new WinStartWindow();

                        break;

                    case "Mp3":

                        window = new Mp3Window();

                        break;

                    case "Socket":

                        window = new SocketWindow();

                        break;

                    case "Tag":

                        window = new TagWindow();

                        break;

                    case "TXT":

                        window = new TXTWindow();

                        break;

                    case "QQ":

                        window = new QQWindow();

                        break;

                    case "Transform":

                        window = new TransformWindow();

                        break;

                    case "Image3DWall":

                        window = new Image3DWallWindow();

                        break;

                    case "Trans":

                        window Trans = new TransWindow();

                        break;

                    case "Weather":

                        window = new WeatherWindow();

                        break;

                    case "Datagrid":

                        window = new DatagridWindow();

                        break;

                    default:

                        break;

                }
　　　　　　　　　 window.ShowDialog();

            }

        }

    }

}