xaml中绑定单例属性

在项目中经常会遇到，同一个字典表绑定到多个ItemsControl上的情况，可以在单例中创建一个List，xaml上绑定即可。看代码：

1，XAML

 <Grid>
        <StackPanel Orientation="Horizontal"
                    VerticalAlignment="Center">
            <TextBlock Text="分类" />
            <ComboBox ItemsSource="{Binding TypeList, Source={x:Static local:Singleton.Instance}}" />
        </StackPanel>
    </Grid>

2，.CS

    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }
    }

    public class Singleton
    {
 
        private Singleton()
        {
            this.TypeList = new List<string>() { "分类1", "分类2", "分类3" };
        }

        private static Singleton instance;
        public static Singleton Instance
        {
            get
            {
                if (instance == null)
                {
                    instance = new Singleton();
                }
                return instance;
            }
        }

        /// <summary>
        /// 分类列表
        /// </summary>
        public List<string> TypeList { get; set; }
    }