MessagePack从Dictionary<,>中继承类中的异常反序列化异常

时间:2018-04-30 11:54:56

标签: c# msgpack

您好我有一个类:

 public class Event : Dictionary<AttributeType, object>

AttributeType是枚举

反序列化将引发异常

var @event = new Event { { AttributeType.EventId, Guid.NewGuid() } };
MessagePackSerializer.Deserialize<Event(MessagePackSerializer.Serialize(@event));

异常消息是:

System.ArgumentException: 'The value "21" is not of type "BRCo.Core.Common.Enums.AttributeType" and cannot be used in this generic collection.'

但是当我使用这段代码时,它还可以

var @event = new Event { { AttributeType.EventId, Guid.NewGuid() } };
MessagePackSerializer.Deserialize<Dictionary<AttributeType, object>>(MessagePackSerializer.Serialize(@event));

任何帮助?

由于

1 个答案:

答案 0 :(得分:1)

感谢neuecc,这是答案

// create custom dictionary inherited formatter.
public class EventFormatter :DictionaryFormatterBase<AttributeType,object, Event>
{
   protected override Event Create(int count)
   {
       return new Event();
   }

   protected override void Add(Event collection, int index, AttributeType key, object value)
   {
       collection.Add(key, value);
   }
}

// and register it.
MessagePack.Resolvers.CompositeResolver.RegisterAndSetAsDefault(
new[] { new EventFormatter() },
new[] { StandardResolver.Instance });