c# (ENUM)枚举组合类型的谷歌序列化Protobuf,必须在序列化/反序列化时加上下面：

RuntimeTypeModel.Default[typeof(Alarm)].EnumPassthru = true;

[ProtoContract]

    class LbsItem

    {

        [ProtoMember(1)]

        public Alarm alarm

        {

            get; set;

        }

    }

   

    public enum Alarm : byte

    {

        无报警,

        碰撞 = 1 << 0,

        振动 = 1 << 1,

        超速 = 1 << 2,

    }

 

    public class ProtobufHelper

    {

        static ProtobufHelper()

        {

            RuntimeTypeModel.Default[typeof(Alarm)].EnumPassthru = true;

        }

        /// <summary>

        /// 序列化

        /// </summary>

        /// <typeparam name="T">对象类型</typeparam>

        /// <param name="t">对象</param>

        /// <returns>序列化后的字符串</returns>

        public static string Serialize<T>(T t)

        {

            using (MemoryStream ms = new MemoryStream())

            {

                Serializer.Serialize<T>(ms, t);

                return Convert.ToBase64String(ms.ToArray());

            }

        }

        /// <summary>

        /// 反序列化

        /// </summary>

        /// <typeparam name="T">对象类型</typeparam>

        /// <param name="content">字符串</param>

        /// <returns>反序列化后的对象</returns>

        public static T DeSerialize<T>(string content)

        {

            using (MemoryStream ms = new MemoryStream(Convert.FromBase64String(content)))

            {

                T t = Serializer.Deserialize<T>(ms);

                return t;

            }

        }

    }

 

示例：

Alarm alarm = Alarm.振动 | Alarm.碰撞;

            LbsItem item = new Demo.LbsItem();

            item.alarm = alarm;

            var serValue= ProtobufHelper.Serialize<LbsItem>(item);

            var _item = ProtobufHelper.DeSerialize<LbsItem>(serValue);