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我正在使用 WF 4.5 和 Devart dotConnect（用于持久性）。我在net.Tcp协议中使用WorkflowServiceHost. 我正在发送一些信息IncomingMessageHeaders。OperationContext.Current在我启用持久性之前，这一切都很好。一旦启用持久性，OperationContext.Current就会得到null. 我不知道为什么会发生这种情况，而且数据OperationContext和数据Persistence都是必要的。这是我的配置

行为.config：

<behaviors>
  <endpointBehaviors>
    <behavior name="ParametersInHeaderBehaviour">
      <HeaderExtension />
    </behavior>
  </endpointBehaviors>
  <serviceBehaviors>
    <behavior name="WorkflowService_Behavior">
      <!--<workflowServiceTrace />-->
      <!--<serviceMetadata httpGetEnabled="true" />-->
      <serviceDebug includeExceptionDetailInFaults="true" />
      <serviceAuthorization principalPermissionMode="Custom" serviceAuthorizationManagerType="Capita.Prism.Authorization.Foundation.Managers.UserAuthorizationManager, Capita.Prism.Authorization.Foundation, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null">
        <authorizationPolicies>
          <add policyType="Authorization.Foundation.ADMappingPolicy, Authorization.Foundation, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null" />
        </authorizationPolicies>
      </serviceAuthorization>
      <!--<oracleTracking connectionString="User Id=workflow;Password=oracle;Server=DEVDB;" profileName="Sample Tracking Profile"/>
      <oracleInstanceStore connectionString="User Id=workflow;Password=oracle;Server=DEVDB;" instanceEncodingOption="None" instanceCompletionAction="DeleteNothing" instanceLockedExceptionAction="NoRetry" hostLockRenewalPeriod="00:00:30" runnableInstancesDetectionPeriod="00:00:05"/>-->
      <workflowIdle timeToUnload="0"/>
      <workflowUnhandledException action="AbandonAndSuspend"/>
      <dataContractSerializer maxItemsInObjectGraph="2147483647"/>
    </behavior>
  </serviceBehaviors>
</behaviors>

可以使用此行为OperationContext.Current，但只要我取消注释oracleTracking并将设置为 null oracleInstanceStore。OperationContext.Current

请帮忙！！！

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