using Newtonsoft.Json;

using System;

using System.Linq;

using System.Runtime.Serialization;

​

// https://stackoverflow.com/a/44454181/4295017

​

public class Program

{

    public static void Main()

    {

        var obj = new Organization { Address = new Address(), Subsidiary = new Organization() };

        var json = JsonConvert.SerializeObject(obj, Formatting.Indented);

        Console.WriteLine(json);

        var addr = new Address();

        json = JsonConvert.SerializeObject(addr, Formatting.Indented);

        Console.WriteLine(json);

    }

}

​

public class NoContextConverter : JsonConverter

{

    public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)

    {

        var props = value.GetType().GetProperties()

            //.Where(p => Attribute.IsDefined(p, typeof(DataMemberAttribute)))

            .ToList();

        if (writer.Path != "")

            props.RemoveAll(p => p.Name == "Context");

​

        writer.WriteStartObject();

        foreach (var prop in props)

        {

            //writer.WritePropertyName(prop.GetCustomAttribute<DataMemberAttribute>().Name);

            writer.WritePropertyName(prop.Name);

            serializer.Serialize(writer, prop.GetValue(value, null));

        }

        writer.WriteEndObject();

    }

​

    public override bool CanConvert(Type objectType)

    {

        return typeof(Thing).IsAssignableFrom(objectType);

    }

​

    public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)

    {

        throw new NotImplementedException();

    }

}

​

//[DataContract]

[JsonConverter(typeof(NoContextConverter))]

public class Thing

{

    //[DataMember(Name = "@context")]

    public string Context { get { return "http://schema.org"; } }

}

​

//[DataContract]

public class Organization : Thing

{

    //[DataMember(Name = "address")]

    public Address Address { get; set; }

    //[DataMember(Name = "subsidiary")]

    public Organization Subsidiary { get; set; }

}

​

//[DataContract]

public class Address : Thing

{

}

​