页面导航

UriMap        /// <summary>
        /// Constructor for the Application object.
        /// </summary>
        public App()
        {
            // Global handler for uncaught exceptions. 
            UnhandledException += Application_UnhandledException;

            // Show graphics profiling information while debugging.
            if (System.Diagnostics.Debugger.IsAttached)
            {
                // Display the current frame rate counters.
                Application.Current.Host.Settings.EnableFrameRateCounter = true;

                // Show the areas of the app that are being redrawn in each frame.
                //Application.Current.Host.Settings.EnableRedrawRegions = true;

                // Enable non-production analysis visualization mode, 
                // which shows areas of a page that are being GPU accelerated with a colored overlay.
                //Application.Current.Host.Settings.EnableCacheVisualization = true;
            }

            // Standard Silverlight initialization
            InitializeComponent();

            // Phone-specific initialization
            InitializePhoneApplication();
            this.RootFrame.UriMapper = Resources["UriMap"] as UriMapper; //将地址别名的key提取到UriMapper对象中
        }

WebBrowser    <Grid x:Name="LayoutRoot" Background="Transparent">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <!--ContentPanel - place additional content here-->
        <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
            <phone:WebBrowser HorizontalAlignment="Left" Name="wpBrowser" VerticalAlignment="Top" Height="529" Width="452" Margin="4,6,0,0" />
            <TextBlock Height="60" HorizontalAlignment="Left" Margin="12,541,0,0" Name="txtMsg" Text="TextBlock" VerticalAlignment="Top" Width="438" />
        </Grid>
    </Grid>

QueryStringusing System;
using System.Windows;
using System.Windows.Navigation;
using Microsoft.Phone.Controls;

namespace NavigationService_ch.View
{
    public partial class WebBrowser : PhoneApplicationPage
    {
        public WebBrowser()
        {
            InitializeComponent();
            this.Loaded += new RoutedEventHandler(WebBrowser_Loaded);
        }

        void WebBrowser_Loaded(object sender, RoutedEventArgs e)
        {
            var dict = NavigationContext.QueryString; //页面导航参数字典
            if (dict == null || dict.Count == 0)
            {
                return;
            }

            wpBrowser.Navigate(new Uri(dict["uri"], UriKind.RelativeOrAbsolute));
            this.txtMsg.Text = "正在打开：" + dict["uri"] + "...";
            wpBrowser.Navigated += new EventHandler<NavigationEventArgs>(wpBrowser_Navigated); //导航完成后事件
        }


        void wpBrowser_Navigated(object sender, NavigationEventArgs e)
        {
            this.txtMsg.Text = "页面打开已完成";
        }

    }
}

CancelGoBack         public WebBrowser()
        {
            InitializeComponent();
            //注消页面的回退事件
            this.BackKeyPress += new EventHandler<CancelEventArgs>(WebBrowser_BackKeyPress);
        }

        void WebBrowser_BackKeyPress(object sender, CancelEventArgs e)
        {
            e.Cancel = true;
        }