在輪詢雙工WCF服務中設置回調超時

Question

我有一個帶有CallbackContract的WCF服務。該服務使用「pollingDuplexHttpBinding」暴露給Silverlight客戶端 當Silverlight客戶端「死亡」並且服務調用回調操作時，它會在一分鐘後收到超時異常。 如何設置這個超時時間不同？

感謝， 埃拉德

Answer 1

如此看來，PollingDuplexHttpBinding的「的SendTimeout」屬性做這項工作：

<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

有一個在MSDN一個很好的文章與配置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' 有基於web.config的示例配置PollingDuplexHttpBinding。

希望，這會有所幫助。