使用JsonConverter进行Json.NET自定义序列化 - 如何获取“默认”行为

I have a JsonConverter for my class DataType. I would like to do some special handling when plain string used in Json as the value of a property of type DataType. In the case where the value is a "full" object, I would like to do the "normal" deserialization. I have a JsonConverter for my class DataType. I