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Editorial Team
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Asked: 2026-05-30T03:00:42+00:00

I have a WCF service with a CallbackContract. The service is exposed to a

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I have a WCF service with a CallbackContract. The service is exposed to a Silverlight client using “pollingDuplexHttpBinding”
When the Silverlight client is “dead” and the service calls a callback operation, it gets a timeout exception after one minute.
How can I set this timeout to be different?

Thanks,
Elad

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1 Answer

  1. Editorial Team

    So it seems that the “SendTimeout” attribute of PollingDuplexHttpBinding does the job:

    <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>
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