[ServiceContract(CallbackContract = typeof(IDuplicateDemoCallback))]
 2     public interface IService1
 3     {
 4         // 在函数中,我们让线程暂停,模拟耗时的操作.
 5         // 参数:interval为暂停的毫秒数,由调用该method的client端设定.
 6         [OperationContract]
 7         void RequestReply(int interval);
 8 
 9         [OperationContract]
10         void DuplicateCommunicate(int interval);
11 
12     }

[ServiceContract(CallbackContract = typeof(IDuplicateDemoCallback))]
 2     public interface IService1
 3     {
 4         // 在函数中,我们让线程暂停,模拟耗时的操作.
 5         // 参数:interval为暂停的毫秒数,由调用该method的client端设定.
 6         [OperationContract(IsOneWay = true)]
 7         void RequestReply(int interval);
 8 
 9         [OperationContract(IsOneWay = true)]
10         void DuplicateCommunicate(int interval);
11 
12     }

// NOTE: You can use the "Rename" command on the "Refactor" menu to 
change the interface name "IService1" in both code and config file together.
 2     [ServiceContract(CallbackContract = typeof(IDuplicateDemoCallback))]
 3     public interface IService1
 4     {
 5         // 在函数中,我们让线程暂停,模拟耗时的操作.
 6         // 参数:interval为暂停的毫秒数,由调用该method的client端设定.
 7         [OperationContract(IsOneWay=true)]
 8         void RequestReply(int interval);
 9        
10         [OperationContract(IsOneWay=true)]
11         void DuplicateCommunicate(int interval);
12 
13 
14     }
15 
16     public interface IDuplicateDemoCallback
17     {
18         [OperationContract(IsOneWay=true)]
19         void DuplicateCommunicateCallback(string callbackMessage);
20     }

<?xml version="1.0"?>
 2 <configuration>
 3 
 4   <system.web>
 5     <compilation debug="false" targetFramework="4.0" />
 6   </system.web>
 7   <system.serviceModel>
 8     <behaviors>
 9       <serviceBehaviors>
10         <behavior>
11           <!-- To avoid disclosing metadata information, 
set the value below to false and remove the metadata endpoint above before deployment -->
12           <serviceMetadata httpGetEnabled="true"/>
13           <!-- To receive exception details in faults for debugging purposes,
 set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
14           <serviceDebug includeExceptionDetailInFaults="false"/>
15         </behavior>
16       </serviceBehaviors>
17     </behaviors>
18     <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
19 
20     <services>
21       <service name="WcfMessagePatternLib.Service1" behaviorConfiguration="">
22         <!-- Service Endpoints -->
23         <endpoint address="" binding="wsDualHttpBinding" contract="WcfMessagePatternLib.IService1">     
24           <identity>
25             <dns value="localhost"/>
26           </identity>
27         </endpoint>
28         <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
29       </service>
30     </services>
31     
32     
33     </system.serviceModel>
34   <system.webServer>
35     <modules runAllManagedModulesForAllRequests="true"/>
36   </system.webServer>
37   
38 </configuration>

class Callback:ServiceReference1.IService1Callback
2     {
3         public void DuplicateCommunicateCallback(string callbackMessage)
4         {
5             MessageBox.Show(callbackMessage);
6         }
7     }
复制代码
1         private void Form1_Load(object sender, EventArgs e)
2         {
3             var context = new InstanceContext(new Callback());
4             proxy = new Service1Client(context);
5         }

<?xml version="1.0" encoding="utf-8" ?>
 2 <configuration>
 3     <system.serviceModel>
 4         <bindings>
 5             <wsDualHttpBinding>
 6                 <binding name="WSDualHttpBinding_IService1" closeTimeout="00:01:00"
 7                     openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
 8                     bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
 9                     maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
10                     messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true">
11                     <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
12                         maxBytesPerRead="4096" maxNameTableCharCount="16384" />
13                     <reliableSession ordered="true" inactivityTimeout="00:10:00" />
14                     <security mode="Message">
15                         <message clientCredentialType="Windows" negotiateServiceCredential="true"
16                             algorithmSuite="Default" />
17                     </security>
18                 </binding>
19             </wsDualHttpBinding>
20         </bindings>
21         <client>
22             <endpoint address="http://localhost:8167/WebHost/Service.svc"
23                 binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_IService1"
24                 contract="ServiceReference1.IService1" name="WSDualHttpBinding_IService1">
25                 <identity>
26                     <dns value="localhost" />
27                 </identity>
28             </endpoint>
29         </client>
30     </system.serviceModel>
31 </configuration>

<?xml version="1.0" encoding="utf-8" ?>
 2 <configuration>
 3 
 4   <system.web>
 5     <compilation debug="true" />
 6   </system.web> 
 7   <system.serviceModel>
 8     <services>
 9       <service name="WcfServiceLibrary4.Service1">
10         <host>
11           <baseAddresses>
12             <add baseAddress = "http://localhost:8732/Design_Time_Addresses/WcfServiceLibrary4/Service1/" />
13           </baseAddresses>
14         </host> 
15         <endpoint address ="" binding="wsHttpBinding" contract="WcfServiceLibrary4.IService1">
16           <identity>
17             <dns value="localhost"/>
18           </identity>
19         </endpoint>    
20         <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
21       </service>
22     </services>
23     <behaviors>
24       <serviceBehaviors>
25         <behavior>
26           <serviceMetadata httpGetEnabled="True"/>       
27           <serviceDebug includeExceptionDetailInFaults="False" />
28         </behavior>
29       </serviceBehaviors>
30     </behaviors>
31   </system.serviceModel>
32 
33 </configuration>