c# - “The creator of this fault did not specify a Reason”异常

我在WCF服务中具有以下代码，可以根据某些情况引发自定义错误。我收到“此错误的创建者未指定原因”异常。我究竟做错了什么？

//source code
if(!DidItPass)
{
    InvalidRoutingCodeFault fault = new InvalidRoutingCodeFault("Invalid Routing Code - No Approval Started");
    throw new FaultException<InvalidRoutingCodeFault>(fault);
}

//operation contract
[OperationContract]
[FaultContract(typeof(InvalidRoutingCodeFault))]
bool MyMethod();

//data contract
[DataContract(Namespace="http://myuri.org/Simple")]
public class InvalidRoutingCodeFault
{
    private string m_ErrorMessage = string.Empty;

    public InvalidRoutingCodeFault(string message)
    {
        this.m_ErrorMessage = message;
    }

    [DataMember]
    public string ErrorMessage
    {
        get { return this.m_ErrorMessage; }
        set { this.m_ErrorMessage = value; }
    }
}

最佳答案

经过一些额外的研究，以下修改的代码起作用了:

if(!DidItPass)
{
    InvalidRoutingCodeFault fault = new InvalidRoutingCodeFault("Invalid Routing Code - No Approval Started");
    throw new FaultException<InvalidRoutingCodeFault>(fault, new FaultReason("Invalid Routing Code - No Approval Started"));
}