using System;

using System.Collections.Generic;

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

​

namespace ConsoleApplication6

{

​

    public class Total

    {

        public double First { get; set; }

        public double Second { get; set; }

    }

​

    public class MyClass

    {

        public Dictionary<double, Total> Dict1 { get; set; }

        public Dictionary<double, Total> Dict2 { get; set; }

        public double CustomProperty1 { get; set; }

        public double CustomProperty2 { get; set; }

    }

​

    public class PredicateConverter<T> : JsonConverter

    {

        private readonly Func<T, bool> _strategy;

​

        public PredicateConverter(Func<T, bool> strategy)

        {

            _strategy = strategy;

        }

​

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

        {

            var result = _strategy((T)value);

            JToken.FromObject(new { First = result, Second = !result }).WriteTo(writer);

        }

​

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

        {

            throw new NotImplementedException();

        }

​

        public override bool CanConvert(Type objectType)

        {

            return typeof(T) == objectType;

        }

    }

​

    public class Program

    {

        public static void Main(string[] args)

        {

            var mc = new MyClass

            {

                Dict1 = new Dictionary<double, Total>

                {

                    {1, new Total { First = 0.3, Second = 0.7 }},

                    {2, new Total { First = 0.4, Second = 0.6 }},

                    {3, new Total { First = 0.9, Second = 0.1 }}

                },

                Dict2 = new Dictionary<double, Total>

                {

                    {1, new Total { First = 0.3, Second = 0.7 }},

                    {2, new Total { First = 0.4, Second = 0.6 }}

                }

            };

​

            var result = JsonConvert.SerializeObject(mc, new PredicateConverter<Total>(total => total.First > total.Second));

            Console.Write(result);

        }

    }

}

​