基礎連接已經關閉：連接被關閉意外

Question

以下是我的web.config文件中的服務模型配置：

<system.serviceModel> 
    <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="true" /> 
     <dataContractSerializer maxItemsInObjectGraph="2147483647" /> 
     </behavior> 
    </serviceBehaviors> 
    </behaviors> 
    <bindings> 
    <basicHttpBinding> 
     <binding name="BasicHttpBinding_IDataPortal" closeTimeout="01:00:00" openTimeout="01:00:00" receiveTimeout="01:00:00" sendTimeout="01:00:00" 
     allowCookies="false" bypassProxyOnLocal="true" hostNameComparisonMode="StrongWildcard" 
     maxBufferPoolSize="524288" maxBufferSize="65536" maxReceivedMessageSize="65536" 
     textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true" messageEncoding="Text"> 
     <readerQuotas maxDepth="64" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="4096" 
         maxNameTableCharCount="2147483647"/> 
     <security mode="None"> 
      <transport clientCredentialType="None" proxyCredentialType="None" realm=""></transport> 
      <message clientCredentialType="UserName" algorithmSuite="Default"/> 
     </security> 
     </binding> 
    </basicHttpBinding> 
    </bindings> 
    <client> 
    <endpoint address="http://localhost:4481/MyDataService.svc" 
       binding="basicHttpBinding" 
       bindingConfiguration="BasicHttpBinding_IDataPortal" 
       name="BasicHttpBinding_IDataPortal" 
       contract="eBusiness_Core.Contracts.ServiceContracts.IBusinessData"> 
    </endpoint> 
    </client> 
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" /> 
</system.serviceModel> 

當我檢查的WCF測試客戶端WCF方法的執行，其執行調用，但最後它會返回一個異常，指出「底層連接已關閉：連接意外關閉」。 我在我的WCF服務中使用了自定義類型，並用「DataContract」和「Serializable」這兩個屬性來裝飾它們。 當我檢查返回字符串的簡單方法時，它工作正常。 可能是什麼原因？

Answer 1

這開始升級POCO生成器類使用EF 5.0