5步教你在Silverlight中使用WCF服务

 

5步教你在Silverlight中使用WCF服务

在Silverlight中如何使用WCF服务呢？本文针对初学者：5步在Silverlight中使用WCF服务

1. 步骤一：创建WCF服务

using System; using System.Collections.Generic; using System.Linq; using System.Runtime.Serialization; using System.ServiceModel; using System.Text; namespace WcfService1 { // 注意: 如果更改此处的类名“Service1”，也必须更新 Web.config 和关联的 .svc 文件中对“Service1”的引用。 public class Service1 : IService1 { public string GetData(int value) { return string.Format("You entered: {0}", value); } public CompositeType GetDataUsingDataContract(CompositeType composite) { if (composite.BoolValue) { composite.StringValue += "Suffix"; } return composite; } } }

 

2.第二步：

在WCF服务中添加跨域策略文件：

lientaccesspolicy.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 include-subpaths="true" path="/"/> </grant-to> </policy> </cross-domain-access> </access-policy>

 

crossdomain.xml

<?xml version="1.0"?> <!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd"> <cross-domain-policy> <allow-http-request-headers-from domain="*" headers="*"/> </cross-domain-policy>

 

3.第三步：创建Silverlight项目

 

4.第四步：在刚才创建的Silverlight项目中添加WCF服务的引用

 

5.修改ServiceReferences.ClientConfig文件，如下：

<configuration> <system.serviceModel> <bindings> <basicHttpBinding> <binding name="BasicHttpBinding_IService1" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647"> <security mode="None" /> </binding> </basicHttpBinding> </bindings> <client> <endpoint address="http://localhost:1914/Service1.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IService1" contract="ServiceReference1.IService1" name="BasicHttpBinding_IService1" /> </client> </system.serviceModel> </configuration>

 

6.第六步：在xaml的后台代码中 调用WCF服务 ：

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 SilverLightWCFService.ServiceReference1; namespace SilverLightWCFService { public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); Service1Client obj = new Service1Client(); obj.GetDataCompleted += new EventHandler<GetDataCompletedEventArgs>(obj_GetDataCompleted); obj.GetDataAsync(980); } void obj_GetDataCompleted(object sender, GetDataCompletedEventArgs e) { //throw new NotImplementedException(); Mytext.Text = e.Result.ToString(); } } }

 

完成后运行程序，观察结果。