DomainService1：

namespace SilverlightApplication3.Web{    using System;    using System.Collections.Generic;    using System.ComponentModel;    using System.ComponentModel.DataAnnotations;    using System.Linq;    using System.ServiceModel.DomainServices.Hosting;    using System.ServiceModel.DomainServices.Server;    // TODO: 创建包含应用程序逻辑的方法。    [EnableClientAccess()]    public class DomainService1 : DomainService    {        [Invoke]        public string getName()        {            return " Jack";        }        [Invoke]        public Person getPerson()        {            Person p = new Person();            p.Name = "jack";            p.Sex = "male";            return p;        }        [Invoke]        public List
     
       getPersonList()        {            List
      
        list = new List
       
        ();            for (int i = 0; i < 10; i++)            {                Person p = new Person();                p.Name = "jack" + i;                p.Sex = "male" + i;                list.Add(p);            }            return list;        }    }    public class Person    {        public string Name { get; set; }        public string Sex { get; set; }    }}
       
      
     

MainPage：

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 SilverlightApplication3.Web;namespace SilverlightApplication3{    public partial class MainPage : UserControl    {        public MainPage()        {            InitializeComponent();            gert();        }        public void gert()        {            DomainService1 ds = new DomainService1();            ds.getName(o => gethhh(o.Value), null);            ds.getPerson(o => gethhu(o.Value), null);            ds.getPersonList(o => getlist(o.Value), null);        }        void gethhh(object v)        {            //MessageBox.Show((string)v);        }        void gethhu(object v)        {            //Person mm = (Person) v;            //MessageBox.Show(mm.Name);        }        void getlist(object l)        {            List
     
       kl = (List
      
       )l;            MessageBox.Show(kl.FirstOrDefault().Name);        }    }}
      
     

附上源码：