using System;

using System.Collections.Generic;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        string form1 = "{\"Pricing\":[{\"total\":27,\"currency\":\"USD\",\"charges\":[{\"code\":\"C1\",\"currency\":\"USD\",\"rate\":15},{\"code\":\"C45\",\"currency\":\"USD\",\"rate\":12}]}]}";

        string form2 = "{\"Pricing\":[{\"total\":12,\"currency\":\"USD\",\"charges\":{\"code\":\"C1\",\"currency\":\"USD\",\"rate\":12}}]}";

        string json = form1;

        try

        {

            Form1.Root Object = JsonConvert.DeserializeObject<Form1.Root>(json);

            Console.WriteLine("Item 1's Pricing: " + Object.Pricing[0].total);

        }

        catch//If Form1's json is Form2 it will catch here

        {

            Form2.Root Object = JsonConvert.DeserializeObject<Form2.Root>(json);

            Console.WriteLine("Item 1's Pricing: " + Object.Pricing[0].total);

        }

    }

    public class Form1

    {

        public class Charge

    {

        public string code { get; set; }

        public string currency { get; set; }

        public int rate { get; set; }

    }

​

    public class Pricing

    {

        public int total { get; set; }

        public string currency { get; set; }

        public List<Charge> charges { get; set; }

    }

​

    public class Root

    {

        public List<Pricing> Pricing { get; set; }

    }

    }

    public class Form2

    {

    public class Charges

    {

        public string code { get; set; }

        public string currency { get; set; }

        public int rate { get; set; }

    }

​

    public class Pricing

    {

        public int total { get; set; }

        public string currency { get; set; }

        public Charges charges { get; set; }

    }

​

    public class Root

    {

        public List<Pricing> Pricing { get; set; }

    }

    }

}