using System;

using System.Linq;

using Newtonsoft.Json.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        //FAKE DATA START

        Dictionary<string, string>[] data = new Dictionary<string, string>[2];

        for(int i = 0; i < data.Length; i++){

            data[i] = new Dictionary<string, string>();

            data[i].Add("TicketId", Guid.NewGuid().ToString("n").Substring(0, 8));

            data[i].Add("CreateTime", Guid.NewGuid().ToString("n").Substring(0, 8));

            data[i].Add("Quantity", Guid.NewGuid().ToString("n").Substring(0, 8));

            data[i].Add("IssueTime", Guid.NewGuid().ToString("n").Substring(0, 8));

            data[i].Add("TicketNo", "1089");

        }

        data[0].Add("MealName", "TomYam");

        data[1].Add("MealName", "Test");

        Dictionary<string, string>[] data2 = new Dictionary<string, string>[8];

        for(int i = 0; i < data2.Length; i++){

            data2[i] = new Dictionary<string, string>();

            data2[i].Add("AddonName", Guid.NewGuid().ToString("n").Substring(0, 2));

        }

        data2[0].Add("TicketNo", "1089");

        data2[0].Add("MealName", "TomYam");

        data2[1].Add("TicketNo", "1089");

        data2[1].Add("MealName", "Test");

        data2[2].Add("TicketNo", "1088");

        data2[2].Add("MealName", "TomYam");

        data2[3].Add("TicketNo", "1087");

        data2[3].Add("MealName", "TomYam");

        data2[4].Add("TicketNo", "1089");

        data2[4].Add("MealName", "Test");

        data2[5].Add("TicketNo", "1089");

        data2[5].Add("MealName", "Test");

        data2[6].Add("TicketNo", "1088");

        data2[6].Add("MealName", "TomYam");

        data2[7].Add("TicketNo", "1087");

        data2[7].Add("MealName", "Test");

        //FAKE DATA END

        JArray arrObj = new JArray();

        List<string> TicketNumber = data.Select(x => x["TicketNo"]).Distinct().ToList();

        foreach (string ticket in TicketNumber){

            JObject retObj = new JObject();

            List<JObject> mealNamesObj = new List<JObject>();

            List<string> mealNames = new List<string>();

            for (int i=0; i<data.ToArray().Count(); ++i){

                if(data.ToArray()[i]["TicketNo"] == ticket){

                    mealNames.Add(data.ToArray()[i]["MealName"].ToString());

                }

            }

            foreach (string meal in mealNames){

                JObject temp = new JObject();

                temp.Add("name", meal);

                List<string> AddonName = new List<string>();

                string TicketId = "";

                string CreateTime = "";

                string Quantity = "";

                string IssueTime = "";

                for (int i=0; i<data2.ToArray().Count(); ++i){

                    if(data2.ToArray()[i]["MealName"] == meal && data2.ToArray()[i]["TicketNo"] == ticket){

                        AddonName.Add(data2.ToArray()[i]["AddonName"].ToString());

                    }

                }

                for (int i=0; i<data.ToArray().Count(); ++i){

                    if(data.ToArray()[i]["MealName"] == meal && data.ToArray()[i]["TicketNo"] == ticket){

                        CreateTime = data.ToArray()[i]["CreateTime"].ToString();

                        Quantity = data.ToArray()[i]["Quantity"].ToString();

                        IssueTime = data.ToArray()[i]["IssueTime"].ToString();

                        TicketId = data.ToArray()[i]["TicketId"].ToString();

                        break;

                    }

                }

                temp.Add("AddonName", JArray.FromObject(AddonName));

                temp.Add("CreateTime", CreateTime);

                temp.Add("Quantity", Quantity);

                temp.Add("IssueTime", IssueTime);

                temp.Add("TicketId", TicketId);

                mealNamesObj.Add(temp);

            }

            var mealNamesJArray = JArray.FromObject(mealNamesObj);

            retObj.Add("MealNames", mealNamesJArray);

            retObj.Add("TicketNo", ticket);

            arrObj.Add(retObj);

        }

​

        Console.WriteLine(arrObj.ToString());

    }

}