C# 将json.net属性反序列化为大写

鉴于以下POCO：

public class AggV2
{
    [JsonProperty("T")]
    public string Ticker { get; set; }
    [JsonProperty("v")]
    public decimal Volume { get; set; }
    [JsonProperty("o")]
    public decimal Open { get; set; }
    [JsonProperty("c")]
    public decimal Close { get; set; }
    [JsonProperty("h")]
    public decimal High { get; set; }
    [JsonProperty("l")]
    public decimal Low { get; set; }
    [JsonProperty("t")]
    [JsonConverter(typeof(UnixMillisecondsConverter))]
    public DateTimeOffset Timestamp { get; set; }
}

我已经看到第三方数据提供商对同一个股票代码（即MsFT和MsFT）发送了混合案例-这导致了MSSQL密钥约束的噩梦

第一步是过滤到一个常见的情况，这样对于上面的示例，

Ticker

属性值将始终是MSFT

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如何确保

股票代码

始终以大写字母序列化？我编写了以下转换器，这是最佳实践方式还是我重新发明了方向盘

public class AggV2
{
    [JsonProperty("T")]
    [JsonConverter(typeof(UppercaseStringConverter))]
    public string Ticker { get; set; }
    [JsonProperty("v")]
    public decimal Volume { get; set; }
    [JsonProperty("o")]
    public decimal Open { get; set; }
    [JsonProperty("c")]
    public decimal Close { get; set; }
    [JsonProperty("h")]
    public decimal High { get; set; }
    [JsonProperty("l")]
    public decimal Low { get; set; }
    [JsonProperty("t")]
    [JsonConverter(typeof(UnixMillisecondsConverter))]
    public DateTimeOffset Timestamp { get; set; }
    [JsonProperty("n")]
    public int Samples { get; set; }
}

public class UppercaseStringConverter : JsonConverter
{
    public override bool CanConvert(Type objectType)
    {
        return objectType == typeof(string);
    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
        if (value is string str)
            writer.WriteValue(str.ToUpper());
        else
            throw new JsonSerializationException("Expected date object value.");
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
        bool nullable = Nullable.GetUnderlyingType(objectType) != null;

        if (reader.TokenType == JsonToken.Null)
        {
            if (!nullable)
            {
                throw new JsonSerializationException($"Cannot convert null value to {objectType}.");
            }
            return null;
        }

        if (reader.TokenType == JsonToken.String)
            return ((string)reader.Value).ToUpper();
        else
            throw new JsonSerializationException($"Unexpected token parsing date. Expected String, got {reader.TokenType}.");
    }
}

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默认情况下，JSON.NET不区分大小写。您可以在属性中使用目标大小写。