Windows Phone 学习 直接用url打开web浏览器

 <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">            <StackPanel>                <Button Content="新浪" Click="OnClick"/>                <Button Content="网易" Click="OnClick"/>                <Button Content="搜狐" Click="OnClick"/>                <Button Content="优酷" Click="OnClick"/>                <Button Content="中国网" Click="OnClick"/>                <Button Content="中青网" Click="OnClick"/>            </StackPanel>        </Grid>

 // 构造函数        public MainPage()        {            InitializeComponent();        }        private void OnClick(object sender, RoutedEventArgs e)        {            Button btn = e.OriginalSource as Button;            if (btn != null)            {                string strContent = btn.Content.ToString();                string MyUri = string.Empty;                // 判断点击了哪个按钮                switch (strContent)                {                    case "新浪":                        MyUri = "http://www.sina.com.cn/";                        break;                    case "网易":                        MyUri = "http://www.163.com/";                        break;                    case "搜狐":                        MyUri = "http://www.sohu.com/";                        break;                    case "优酷":                        MyUri = "http://www.youku.com/";                        break;                    case "中国网":                        MyUri = "http://www.china.com.cn/";                        break;                    case "中青网":                        MyUri = "http://www.youth.cn/";                        break;                    default:                        break;                }                // 实例化WebBrowserTask启动器                Microsoft.Phone.Tasks.WebBrowserTask myWeb = new Microsoft.Phone.Tasks.WebBrowserTask();                // 要浏览的URI                myWeb.Uri = new Uri(MyUri);                // 显示启动器界面                myWeb.Show();            }        }