错误时数据合同构件指彼此

Question

我有一个简单的数据契约，其是具有相互引用的数据成员，这里是数据成员：

[DataContract(Namespace = "", Name = "ScaleTransactionHeaderMessage")] 
public class ScaleTransactionHeaderMessage 
{ 
    [DataMember] 
    public int ScaleTransactionHeaderMessageId { get; set; } 

    [DataMember] 
    public string OperatorName { get; set; } 

    [DataMember] 
    public string Shift { get; set; } 

    [DataMember] 
    public string Source { get; set; } 

    [DataMember] 
    public string Destination { get; set; } 

    **[DataMember] 
    public List<ScaleTransactionDetailMessage> ScaleTransactionDetailMessages { get; set; }** 

} 

[DataContract(Namespace = "", Name = "ScaleTransactionDetailMessage")] 
public class ScaleTransactionDetailMessage 
{ 

    [DataMember] 
    public int ScaleTransactionDetailMessageId { get; set; } 

    [DataMember] 
    public double Tonnage { get; set; } 

    [DataMember] 
    public DateTime TransactionDetailDate { get; set; } 

    **[DataMember] 
    public ScaleTransactionHeaderMessage scaleTransactionHeaderMessage { get; set; }** 

} 

这里是操作引起问题

 private static ScaleTransactionDetailMessage ConvertTransactionDetail(ScaleTransactionHeaderMessage headerMessage, ScaleTransactionDetail transactionDetail) 
    { 
     ScaleTransactionDetailMessage detailMessage = new ScaleTransactionDetailMessage 
     { 
      Tonnage = transactionDetail.Tonnage, 
      TransactionDetailDate = transactionDetail.TransactionDetailDate, 
      ScaleTransactionDetailMessageId = transactionDetail.TransactionDetailId, 
      //TODO: Check why this is not working 
      **scaleTransactionHeaderMessage = headerMessage** 
     }; 
     return detailMessage; 
    } 

的问题是每次我在ScaleTransactionDetailMessage数据合同，我总是得到一个错误提的连接超时加ScaleTransactionHeaderMessage时间，我敢肯定，这是不是配置问题，因为如果我没有价值添加到ScaleTransactionHeaderMessage我在运营合同中，服务可以正常运行。

我有单元测试操作，它工作正常，问题只在调用服务时出现。

数据合同设计中是否有错误？

Answer 1

您需要添加IsReference = true到DataContract：

[DataContract(IsReference=true] 

看看here。