从JsonConverter.ReadJson访问已反序列化的属性

public class CustomConverter : JsonConverter
{
    public override bool CanConvert(Type objectType)
    {
        // 判断是否可以转换为指定类型
        return objectType == typeof(MyClass);
    }

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
    {
        // 读取JSON中的属性值，并赋值给对象的属性
        JObject jsonObject = JObject.Load(reader);
        MyClass myObject = new MyClass();
        myObject.Property1 = (string)jsonObject["property1"];
        myObject.Property2 = (int)jsonObject["property2"];

        return myObject;
    }

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
    {
        // 序列化对象为JSON
        throw new NotImplementedException();
    }
}

public class MyClass
{
    public string Property1 { get; set; }
    public int Property2 { get; set; }
}

// 使用自定义的JsonConverter进行反序列化
string json = "{\"property1\":\"value1\",\"property2\":123}";
JsonSerializerSettings settings = new JsonSerializerSettings();
settings.Converters.Add(new CustomConverter());
MyClass myObject = JsonConvert.DeserializeObject<MyClass>(json, settings);

// 访问已反序列化的属性
Console.WriteLine(myObject.Property1);  // 输出：value1
Console.WriteLine(myObject.Property2);  // 输出：123