Silverlight 调用WebServices

参考别人的例子,加入跨域访问部分,留作参考.

WebServices 项目: Service1 类和 Person类 注意因为是独立的Service项目,所以需要加入2个xml文件,实现跨域访问,加在根目录下

clientaccesspolicy.xml和crossdomain.xml

public class Service1 : System.Web.Services.WebService
    {

        [WebMethod]
        public string HelloWorld()
        {
            return "Hello World";
        }

        [WebMethod]
        public Person[] GetPeople()
        {
            List<Person> People = new List<Person>()
　　　　　　　 {
　　　　　　　　　　 new Person{ Name="Jack",Age=12},
　　　　　　　　　　 new Person{ Name="Tom",Age=22},
　　　　　　　　　　 new Person{ Name="Simon",Age=32},
　　　　　　　　　　 new Person{ Name="Richard",Age=26}
　　　　　　　 };

            return People.ToArray();
        }

    }

    public class Person
    {
        public string Name { get; set; }
        public int Age { get; set; }
    }

clientaccesspolicy.xml

<?xml version="1.0" encoding="utf-8" ?>
<access-policy>
  <cross-domain-access>
    <policy>
      <allow-from http-request-headers="*">
        <domain uri="*" />
      </allow-from>
      <grant-to>
        <resource path="/" include-subpaths="true"/>
      </grant-to>
    </policy>
  </cross-domain-access>
</access-policy>

crossdomain.xml

<?xml version="1.0" encoding="utf-8"?>
<access-policy>
  <cross-domain-access>
    <policy>
      <allow-from http-request-headers="*">
        <domain uri="*" />
      </allow-from>
      <grant-to>
        <resource path="/" include-subpaths="true"/>
      </grant-to>
    </policy>
  </cross-domain-access>
</access-policy>

服务端项目: 添加WebService的引用

Xaml

<UserControl x:Class="SLWenServices.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

    <StackPanel Width="400" Height="300" Background="Wheat">
        <TextBlock Text="通过WebService取得的数据如下" TextAlignment="Center" Foreground="Red" FontSize="18"></TextBlock>
        <Button x:Name="btnGetWebService" Width="200" Height="30" Content="获取数据" Click="btnGetWebService_Click"></Button>
        <ListBox x:Name="People" Width="300" Height="200" Margin="20">
            　　　　　　　　　　　
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Vertical">
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="姓名" Width="100" Foreground="Blue" ></TextBlock>
                            <TextBlock Text="年龄" Width="100" Foreground="DarkBlue"></TextBlock>
                        </StackPanel>
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="{Binding Name}" Foreground="Red" Width="100" ></TextBlock>
                            <TextBlock Text="{Binding Age}" Foreground="Green" Width="100" ></TextBlock>
                        </StackPanel>
                    </StackPanel>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
    </StackPanel>

</UserControl>

C#

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 SLWenServices.MyWebServiceRef;

namespace SLWenServices
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
            
        }
        private void btnGetWebService_Click(object sender, RoutedEventArgs e)
        {
            //使用WebService从服务器端得到数据并在本地端进行处理
            
            Service1SoapClient client = new Service1SoapClient();
            client.GetPeopleCompleted += new EventHandler<GetPeopleCompletedEventArgs>(client_GetPeopleCompleted);

            client.GetPeopleAsync();
        }

        void client_GetPeopleCompleted(object sender, GetPeopleCompletedEventArgs e)
        {
            if (e.Error == null)
            {
                People.ItemsSource = e.Result;　//绑定结果到UI的List控件
            }
        }

        
    }
}