using System;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var manager = new SessionManager();

        manager.UserName = "stackoverflow";

        manager.Password = "password";

        manager.SetPermissions();

        var settings = new JsonSerializerSettings();

        settings.Converters.Add(new SessionPermissionConverter());

        settings.Formatting = Newtonsoft.Json.Formatting.Indented;

        string json = JsonConvert.SerializeObject(manager, settings);

        Console.WriteLine(json);

        SessionManager deserialized = JsonConvert.DeserializeObject<SessionManager>(json, settings);

        deserialized.Dump();

    }

}

​

public class SessionPermission

{

    public string Permission { get; set; }

    public bool IsAllowed { get; set; }

}

​

public class SessionPermissionConverter : JsonConverter

{

    public override object ReadJson(

        JsonReader reader,

        Type objectType,

        object existingValue,

        JsonSerializer serializer)

    {

        var obj = (JObject)JObject.ReadFrom(reader);

        JProperty property = obj.Properties().FirstOrDefault();

        return new SessionPermission

        {

            Permission = property.Name,

            IsAllowed = property.Value.Value<bool>()

        };

    }

    public override void WriteJson(

        JsonWriter writer,

        object value,

        JsonSerializer serializer)

    {

       SessionPermission permission = (SessionPermission)value;

       JObject obj = new JObject();

       obj[permission.Permission] = permission.IsAllowed;

       obj.WriteTo(writer);

    }

    public override bool CanConvert(Type t)

    {

        return typeof(SessionPermission).IsAssignableFrom(t);

    }

    public override bool CanRead

    {

        get { return true; }

    }

}

​

​

public class SessionManager

{

    public string UserName { get; set; }

    public string Password { get; set; }

    public List<SessionPermission> Permissions { get; set; }

​

    public void SetPermissions()

​

    {

        Permissions = new List<SessionPermission>

        {

            new SessionPermission {Permission = "CreateUsers", IsAllowed = false},

            new SessionPermission {Permission = "EditUsers", IsAllowed = false},

            new SessionPermission {Permission = "EditBlog", IsAllowed = true}

        };

    }

}