Visual Studio 2010 で .NET 4 と Silverlight 4 を使用して、MSDN ガイドに従って Silverlight クライアント用の二重サービスを構築しようとしています ( http://msdn.microsoft.com/en-us/library/cc645027(v= vs.96).aspx )。
Web.config で警告が表示されます:
警告 26 要素 'bindings' に無効な子要素 'pollingDuplexHttpBinding' があります。List of possible elements expected: 'basicHttpBinding, customBinding, msmqIntegrationBinding, netPeerTcpBinding, netMsmqBinding, netNamedPipeBinding, netTcpBinding, wsFederationHttpBinding, ws2007FederationHttpBinding, wsHttpBinding, ws2007HttpBinding, wsDualHttpBinding, netTcpContextBinding, wsHttpContextBinding, basicHttpContextBinding, mexHttpBinding, mexHttpsBinding, mexNamedPipeBinding, mexTcpBinding, webHttpBinding'. C:\DuplexService\DuplexService\Web.config
サービス参照をクライアントに追加できません。WCF テスト クライアントでサービスを読み込めません。私は多くの場所で答えを探しました。問題が何であるかわかりません。
現在、web.config は次のようになっています。
<!-- 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>
</extensions>
<bindings>
<!-- Create the polling duplex binding. -->
<pollingDuplexHttpBinding>
<binding name="multipleMessagesPerPollPollingDuplexHttpBinding"
duplexMode="MultipleMessagesPerPoll"
maxOutputDelay="00:00:07"/>
</pollingDuplexHttpBinding>
</bindings>
<services>
<service name="DuplexService.OrderService"
behaviorConfiguration="DuplexService.OrderServiceBehavior">
<!-- Service Endpoints -->
<endpoint
address=""
binding="pollingDuplexHttpBinding"
bindingConfiguration="multipleMessagesPerPollPollingDuplexHttpBinding"
contract="DuplexService.IDuplexService">
</endpoint>
<endpoint
address="mex"
binding="mexHttpBinding"
contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior>
<!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
<serviceMetadata httpGetEnabled="true"/>
<!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment multipleSiteBindingsEnabled="true" />