WCF 抛出FaultException<T>异常

1. DataContract   - new class FaultMessage
    [DataContract]
    public class FaultMessage
    {
        [DataMember]
        public string ErrorCode { get; set; }

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

2. WCF Service
    try
    {
        return XXX;
    }catch(Exception ex)
    {
        FaultMessage faultMessage = new FaultMessage();
        faultMessage.ErrorCode = "ErrorCode ";
        faultMessage.Message = ex.Message;
        throw new FaultException<FaultMessage>(faultMessage);
    }

3. ServiceContract    -- add [FaultContract(typeof(FaultMessage))]
    [ServiceContract]
    public interface IGameContract
    {
        [OperationContract]
        [FaultContract(typeof(FaultMessage))]
        IList<DungeonInfo> GetDungeonList();
        [OperationContract]
        [FaultContract(typeof(FaultMessage))]
         ...
    }

4.UI
    try
    {
        Service1.ServiceClient client = new Service1.ServiceClient()
        XXXX
    }
    catch (FaultException<Service1.FaultMessage> ex)
    {
        LabelMsg.Text = string.Format("ErrorCode:{0}\n Message:{1}", ex.Detail.ErrorCode, ex.Detail.Message);
    }