设置轮询双工WCF服务中回调的超时

Question

我有一个带有CallbackContract的WCF服务。该服务使用"pollingDuplexHttpBinding"公开给Silverlight客户端当Silverlight客户端"死"并且服务调用回调操作时，一分钟后会出现超时异常。如何将此超时设置为不同的？

谢谢，Elad

Answer 1

MSDN中有一篇关于配置PollingDuplexHttpBinding:的好文章

//Inactivity timeout
PollingDuplexHttpBinding binding = new PollingDuplexHttpBinding();    
//Get default inactivity timeout
TimeSpan defaultInactivityTimeOut = binding.InactivityTimeout;
//Returns default timeout in minutes: 10
string txtDefaultInactivityTimeOut = defaultInactivityTimeOut.Minutes.ToString();    
//Set new inactivity timeout
TimeSpan newInactivityTimeOut = new TimeSpan(0, 5, 0);
binding.InactivityTimeout = newInactivityTimeOut;

更新：在"如何：为Silverlight客户端构建双工服务"的"使用PollingDuplexHttpBinding"段落中，有一个基于web.config的配置PollingDuplexHttpBinding的示例。

希望，这会有所帮助。

Answer 2

所以PollingDuplexHttpBinding的"SendTimeout"属性似乎完成了任务：

<extensions>
  <bindingExtensions>
    <add name="pollingDuplexHttpBinding" type="System.ServiceModel.Configuration.PollingDuplexHttpBindingCollectionElement, System.ServiceModel.PollingDuplex, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/>
  </bindingExtensions>
</extensions>
<bindings>
  <pollingDuplexHttpBinding>
    <binding name="myPollingDuplex" sendTimeout="00:00:05"/>
  </pollingDuplexHttpBinding>
</bindings>

<services>
  <service name="Kodak.Pgy.Server.Event.WCFService.EventService" behaviorConfiguration="EventBehavior">
    <!--For duplex communication with the service from silverlight client-->
    <endpoint address="/for-silverlight" binding="pollingDuplexHttpBinding" bindingConfiguration="myPollingDuplex" contract="IEventService"/>
  </service>
</services>