如何在 Windows Phone 8: 中的 Web 视图中根据月份的日期和时间显示不同的 html 页面

我的应用程序中有 366 个 html 页面，我想在我的应用程序中本地查看一年中的某一天每个 html 页面下面的代码只能查看单个 html 页面，但我想要的是 根据网页视图中的月份日期显示每天的不同 html 页面，即如果用户在 2016 年 2 月 3 日打开应用程序，该应用程序应打开 devotion62.html即一年中的第 62 天这是我下面的代码XAML

<!--ContentPanel - place additional content here-->
        <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
            <phone:WebBrowser HorizontalAlignment="Left" Margin="20,50,0,0" Name="webBrowser1" VerticalAlignment="Top" Height="500" Width="430" />
        </Grid>

XAML.CS

public partial class MainPage : PhoneApplicationPage
    {
        private List<string> htmls;
        private int CurrentIndex = 0;
        private int TotalCount = 0;
        // Constructor
        public MainPage()
        {
            InitializeComponent();
            // Sample code to localize the ApplicationBar
            //BuildLocalizedApplicationBar();
            this.Loaded += MainPage_Loaded;
        }
        private void MainPage_Loaded(object sender, RoutedEventArgs e)
        {
            htmls = new List<string>() { "/Bible/devotion60.html", "/Bible/devotion61.html", "/Bible/devotion62.html", "/Bible/devotion63.html" };//List of string will contain all the 366 html files path
            TotalCount = htmls.Count;
            if (TotalCount != 0)
            {
                webBrowser1.Navigate(new Uri(htmls[CurrentIndex], UriKind.Relative));
            }
        }
        private void Previous_Click(object sender, EventArgs e)
        {
            if (CurrentIndex != 0)
            {
                CurrentIndex--;
            }
            webBrowser1.Navigate(new Uri(htmls[CurrentIndex], UriKind.Relative));
        }
        private void Next_Click(object sender, EventArgs e)
        {
            if (CurrentIndex != TotalCount - 1)
            {
                CurrentIndex++;
            }
            webBrowser1.Navigate(new Uri(htmls[CurrentIndex], UriKind.Relative));
        }

CurrentIndex = DateTime.Now.DayOfYear;