public override void Deserialize(BinaryReader br)
 {
     InstanceId = br.ReadInt32();
     MemberName = br.ReadString();
     Value      = ValueMessageFactory.Deserialize(br);
 }
 public override void Serialize(BinaryWriter bw)
 {
     bw.Write(InstanceId);
     bw.Write(MemberName);
     ValueMessageFactory.Serialize(bw, Value);
 }