使用 Json.net 仅将接口属性序列化为 JSON

有了这样一个简单的类/接口

public interface IThing
{
    string Name { get; set; }
}

public class Thing : IThing
{
    public int Id { get; set; }
    public string Name { get; set; }
}

如何获取仅包含“Name”属性（仅底层接口的属性）的 JSON 字符串？

事实上，当我这样做时：

var serialized = JsonConvert.SerializeObject((IThing)theObjToSerialize, Formatting.Indented);
Console.WriteLine(serialized);

我得到 JSON 形式的完整对象（Id + Name）；

我使用的方法，

public class InterfaceContractResolver : DefaultContractResolver
{
    private readonly Type _InterfaceType;
    public InterfaceContractResolver (Type InterfaceType)
    {
        _InterfaceType = InterfaceType;
    }

    protected override IList<JsonProperty> CreateProperties(Type type, MemberSerialization memberSerialization)
    {
        //IList<JsonProperty> properties = base.CreateProperties(type, memberSerialization);
        IList<JsonProperty> properties = base.CreateProperties(_InterfaceType, memberSerialization);
        return properties;
    }
}

// To serialize do this:
var settings = new JsonSerializerSettings() {
     ContractResolver = new InterfaceContractResolver (typeof(IThing))
};
string json = JsonConvert.SerializeObject(theObjToSerialize, settings);