using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        int opt = 0;

            while (opt != 5)

            {

                Console.WriteLine("=============================================");

                Console.WriteLine("\t+++  KD & MJ Shop (POS)  +++");

                Console.WriteLine("=============================================");

                Console.WriteLine("=============================================");

                Console.WriteLine("\t");

                Console.WriteLine("\t1. Add a Product");

                Console.WriteLine("\t2. View Product List");

                Console.WriteLine("\t3. Delete a Product");

                Console.WriteLine("\t4. Transact Sales");

                Console.WriteLine("\t5. Exit Program");

                Console.WriteLine("\t");

                Console.WriteLine("=============================================");

                Console.WriteLine("Make your choice: type 1, 2,... or 5 for exit");

                Console.WriteLine("=============================================");

                Console.WriteLine(" ");

​

                try

                {

​

​

​

                    opt = int.Parse(Console.ReadLine());

                    Dictionary<string, double> Inventory = new Dictionary<string, double>(StringComparer.OrdinalIgnoreCase);

                    switch (opt)

                    {

                    case 2:

                            {

​

                            Console.Clear();

                            Console.WriteLine("\t= = = = = = < Product List Vew > = = = = = =");

                            foreach (KeyValuePair <string, double> kvp in Inventory)

                            {

                            Console.WriteLine("Product Name: {0}\t\t Price: {1}", kvp.Key, string.Format("{0:N}", kvp.Value));

                            }

                            Console.ReadKey();

                            break;

​

                            }

​

                            }

​

​

​

​

​

                }catch (Exception err)

                {

                    Console.WriteLine(err.Message + "try again...!");

                }

            }

    }

}

​

​