服务引用配置中无法识别的元素'pollingDuplexHttpBinding‘

Question

我正在使用WCF和两个端点basicHttpBinding和pollingDuplexHttpBinding。在Silverlight中使用WCF 4.如果我只有basic..和轮询..它运行良好。但是如果我在一个服务和一个silverlight项目中同时使用，我会收到客户端的消息：

“服务引用配置中无法识别的元素'pollingDuplexHttpBinding‘。请注意，Silverlight中仅提供Windows Communication Foundation配置功能的子集。”

WFC被正确引用到silverlight项目，但不起作用。以下是WCF的web.config：

 <services>
      <service behaviorConfiguration="Service1Behavior" name="Service1">
        <endpoint
          address=""
          binding="basicHttpBinding"
          bindingConfiguration="LargeBuffer"
          contract="IService1"
          listenUri="http://localhost:7007/Service1.svc">
          <identity>
            <dns value="localhost"/>
          </identity>
        </endpoint>
        <endpoint
          address=""
          binding="pollingDuplexHttpBinding"
          bindingConfiguration="multipleMessagesPerPollPollingDuplexHttpBinding"
          contract="ILongService1"
          listenUri="http://localhost:7007/Service1.svc/LongService">
          <identity>
            <dns value="localhost"/>
          </identity>
        </endpoint>

        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
      </service>
    </services>

下面是客户端的配置：

<endpoint address="http://localhost:7007/ServiceWebTDM.svc/LongService"
      binding="pollingDuplexHttpBinding" bindingConfiguration="multipleMessagesPerPollPollingDuplexHttpBinding"
      contract="GXWebTDM.Web.ILongServiceWebTDM" name="LongServiceWebTDMDev" />

          <endpoint address="http://localhost:7007/ServiceWebTDM.svc" binding="basicHttpBinding"
                bindingConfiguration="BasicHttpBinding_IServiceWebTDM1" contract="GXWebTDMService.IServiceWebTDM"
                name="ServiceWebTDMDev" />

Answer 1

查看this article

您需要在客户端配置中添加以下代码片段：

<!-- Register the binding extension from the SDK. -->
<extensions>
  <bindingExtensions>
    <add name=
        "pollingDuplexHttpBinding"
        type="System.ServiceModel.Configuration.PollingDuplexHttpBindingCollectionElement,System.ServiceModel.PollingDuplex, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
  </bindingExtensions>

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