1创建silverlight应用程序

2 在解决方案右击属性添加新项 添加 linq to sql

3 把数据库中的表复制到linq  to sql类中（注意：以下截图中红色方框需要自己修改）

4 为项目添加 wcf服务

5为wcf服务类文件中添加显示数据的函数其代码如下：

using System;using System.Linq;using System.Runtime.Serialization;using System.ServiceModel;using System.ServiceModel.Activation;using StuEntity;using StuContent;using System.Collections.Generic;using System.Text;namespace SilverlightApplicationTest.Web{    [ServiceContract(Namespace = "")]    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]    public class ServiceStuInfo    {        [OperationContract]        public void DoWork()        {            // 在此处添加操作实现            return;        }        [OperationContract]        public List
      
        GetAllMsg()        {            StuTestDataContext stuTest = new StuTestDataContext();            var result = from info in stuTest.StuMsg select info;            return result.ToList
       
        ();        }        // 在此处添加更多操作并使用 [OperationContract] 标记它们    }}
       
      

6 为mainpage.xaml布局datagrid控件 button按钮

7 项目添加服务引用和添加System.Data.Services.Client

8  mainpage.xaml后台代码如下：

using System;using System.Collections.Generic;using System.Linq;using System.Net;using System.Windows;using System.Windows.Controls;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Animation;using System.Windows.Shapes;using System.Data.Services.Client;using SilverlightApplicationTest.StuServiceReference;namespace SilverlightApplicationTest{    public partial class MainPage : UserControl    {        public MainPage()        {            InitializeComponent();            this.btnGet.Click += new RoutedEventHandler(btnGet_Click);        }        private void btnGet_Click(object sender, RoutedEventArgs e)        {                        ServiceStuInfoClient stu = new ServiceStuInfoClient();            stu.GetAllMsgAsync();            stu.GetAllMsgCompleted += new EventHandler
      
       (stu_GetAllMsgCompleted);        }          private void stu_GetAllMsgCompleted(object sender, GetAllMsgCompletedEventArgs e)        {            dgrid.ItemsSource = e.Result;        }            }}
      

9 按F5调试运行