using System;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

public class Program

{

    public static void Main()

    {

        string json = @"

            {

              ""name"": ""foo"",

              ""settings"": {

                ""setting1"": true,

                ""setting2"": 1

              }

            }";

​

        Console.WriteLine("--- deserialized from JSON ---");

        var root = JsonConvert.DeserializeObject<RootObject>(json);

        Console.WriteLine("name = " + root.Name);

        Console.WriteLine("settings = " + root.Settings);

        Console.WriteLine();

        Console.WriteLine("--- reserialized to JSON ---");

        Console.WriteLine(JsonConvert.SerializeObject(root, Formatting.Indented));

        Console.WriteLine();

        Console.WriteLine("--- reserialized with changed settings ---");

        root.Settings = @"{ ""setting3"": ""yes"" }";

        Console.WriteLine(JsonConvert.SerializeObject(root, Formatting.Indented));

    }

}

​

​

public class RootObject

{

    [JsonProperty("name")]

    public string Name { get; set; }

    [JsonIgnore]

    public string Settings

    {

        get { return SettingsToken != null ? SettingsToken.ToString(Formatting.None) : null; }

        set { SettingsToken = value != null ? JToken.Parse(value) : JValue.CreateNull(); }

    }

    [JsonProperty("settings")]

    private JToken SettingsToken { get; set; }

}

​