在轮询双工WCF服务中设置回调超时

Question

我有一个带有CallbackContract的WCF服务。该服务使用“pollingDuplexHttpBinding”暴露给Silverlight客户端 当Silverlight客户端“死亡”并且服务调用回调操作时，它会在一分钟后收到超时异常。 如何设置这个超时时间不同？

感谢， 埃拉德

Answer 1

如此看来，PollingDuplexHttpBinding的“的SendTimeout”属性做这项工作：

<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> 

Answer 2

有一个在MSDN一个很好的文章与配置PollingDuplexHttpBinding：

//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; 

UPDATE：在'要使用PollingDuplexHttpBinding'款 'How to: Build a Duplex Service for a Silverlight Client' 有基于web.config的示例配置PollingDuplexHttpBinding。

希望，这会有所帮助。