如何手动创建wcf服务故障异常？

using System;
using System.ServiceModel;

namespace MyWcfService
{
    public class MyService : IMyService
    {
        public string GetData(int value)
        {
            if (value == 42)
            {
                // 创建故障异常
                throw new FaultException<MyFaultContract>(new MyFaultContract
                {
                    ErrorCode = 1001,
                    ErrorMessage = "故障异常：值为42"
                });
            }

            return $"你输入的值是：{value}";
        }
    }

    [DataContract]
    public class MyFaultContract
    {
        [DataMember]
        public int ErrorCode { get; set; }

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

    [ServiceContract]
    public interface IMyService
    {
        [OperationContract]
        [FaultContract(typeof(MyFaultContract))]
        string GetData(int value);
    }
}