using System;

public class Program

{

    public static void Main()

    {

            Customer[] Cust = new Customer[1];

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

            {

                Cust[i] = new Customer();

            }

​

            PopulateCustomers(ref Cust);

            DisplayAll(ref Cust);

    }

    public static void DisplayAll(ref Customer[] CST)

        {

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

            {

                Console.WriteLine("{0} {1}",CST[i].FirstName,CST[i].LastName);

                for (int j = 0; j < CST[i].CustomerOrders.Length ; j++)

                {

                    Console.Write("{0} - {1:C} - {2}, ", CST[i].CustomerOrders[j].Description, CST[i].CustomerOrders[j].Price, CST[i].CustomerOrders[j].Quantity);

                }

                Console.WriteLine("\n");

            }

        }

​

        public static void PopulateCustomers(ref Customer[] CST)

        {

            int i = 0;

            while (i>-1)

            {

                //Console.Write("Enter First Name  ");

                CST[i].FirstName = (i + 1).ToString() + "_" + "Salman"; //Console.ReadLine();

​

                //Console.Write("Enter Last Name  ");

                CST[i].LastName = (i + 1).ToString() + "_" + "Rastgou"; //Console.ReadLine();

​

                int j=0;

                while (j>-1)

                {

                    //Console.Write("Enter Order Description  ");

                    CST[i].CustomerOrders[j].Description = (j + 1).ToString() + "_" + "Cellphone"; //Console.ReadLine();

​

                    //Console.Write("Enter Order Price  ");

                    CST[i].CustomerOrders[j].Price = (j + 1) * (i + 1) * 200; //decimal.Parse(Console.ReadLine());

​

                    //Console.Write("Enter Order Quantity  ");

                    CST[i].CustomerOrders[j].Quantity = (j + 1) * (i + 1); //int.Parse(Console.ReadLine());

​

                    Console.WriteLine("Next Order? Y/N");

                    string Ans = Console.ReadLine();

                    if (Ans  == "Y" || Ans == "y")

                    {

                        j++;

                        Array.Resize(ref CST[i].CustomerOrders, j + 1);

                        CST[i].CustomerOrders[j] = new Order();

                    }

                    else

                    {

                        j = -1;

                    }

                }

                Console.WriteLine("Next Customer? Y/N");

                string Ans2 = Console.ReadLine();

                if (Ans2=="Y" || Ans2=="y")

                {

                    i++;

                    Array.Resize(ref CST, i + 1);

                    CST[i] = new Customer();

                }

                else

                {

                    i = -1;

                }

​

            }

        }

    class Customer

    {

        public string FirstName;

        public string LastName;

        public Order[] CustomerOrders = new Order[1];

        public Customer()

        {

            for (int i = 0; i < this.CustomerOrders.Length; i++)

                this.CustomerOrders[i] = new Order();

​

        }

    }

​

    class Order

    {

        public string Description;

        public decimal Price;

        public int Quantity;

    }

}