将json字符反序列化为枚举

I have an enumeration defined with C#, where I'm storing it's values as characters, like this:

public enum CardType
{
    Artist = 'A',
    Contemporary = 'C',
    Historical = 'H',
    Musician = 'M',
    Sports = 'S',
    Writer = 'W'
}

我正在try 使用JSON.NET进行反序列化，但是传入的JSON是使用CHAR值(字符串)而不是枚举的INT值编写的，如下所示:

[{"CardType","A"},{"CardType", "C"}]

Is it possible to define some kind of converter that will allow me to manually parse the char to the enum value?

我try 创建一个JsonConverter，但不确定如何创建，同时只将其应用于这个属性，而不是整个解析的对象.以下是我try 过的:

public class EnumerationConverter : JsonConverter
{
    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
        serializer.Serialize(writer, value);
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
        if (reader.TokenType == JsonToken.Null)
        {
            return null;
        }

        int value = serializer.Deserialize<int>(reader);
        return (CardType)value;
    }

    public override bool CanConvert(Type objectType)
    {
        return objectType.IsSubclassOf(typeof(string));
    }
}

逻辑可能是错误的，我可以解决这个问题，但问题是根本没有调用ReadJson().

CanConvert is, but it appears to be called for every property, not just the one property I defined it for:

public class Card
{
            private CardType type;
        [JsonConverter(typeof(EnumerationConverter))]
        public CardType Type
        {
            get { return type; }
            set { type = value; }
        }
}

我肯定我做得不对，但我很难找到关于如何为单个字段执行此操作的文档...

What am I missing?