1 <Grid x:Name="LayoutRoot" Background="Transparent">
2
3 </Grid>

1     <Grid x:Name="LayoutRoot" Background="Transparent">
2         <Button Content="Do" Height="72" HorizontalAlignment="Left" Margin="157,169,0,0" Name="button1" VerticalAlignment="Top" Width="160" Click="button1_Click" />
3     </Grid>

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Net;
 5 using System.Windows;
 6 using System.Windows.Controls;
 7 using System.Windows.Documents;
 8 using System.Windows.Input;
 9 using System.Windows.Media;
10 using System.Windows.Media.Animation;
11 using System.Windows.Shapes;
12 using Microsoft.Phone.Controls;
13 using System.IO;
14
15 namespace PhoneApp1
16 {
17     public partial class MainPage : PhoneApplicationPage
18     {
19         // 构造函数
20         public MainPage()
21         {
22             InitializeComponent();
23
24         }
25
26         private void button1_Click(object sender, RoutedEventArgs e)
27         {
28             WebClient webClient = new WebClient();
29             webClient.OpenReadAsync(new Uri("http://www.baidu.com"));
30             webClient.OpenReadCompleted += new OpenReadCompletedEventHandler(webClient_OpenReadCompleted);
31         }
32
33         void webClient_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
34         {
35             using (StreamReader reader = new StreamReader(e.Result))
36             {
37                 MessageBox.Show(reader.ReadToEnd());
38             }
39         }
40     }
41 }