static void Main(string[] args)
        {
            var CCustomer = new Customer();

            for (int i = 0; i <= 100; i++)
            {
                Console.WriteLine("\nSelect From List");
                Console.WriteLine("\n Options: ('c') CustomerList, ('n') New Customer, ('r') Registered Customer, ('u') Update Customer Name ");
                Console.Write("Select Options: ");
                var option1 = Console.ReadLine();
                if (option1 == "r")
                {
                    string name = "";
                    int    ID;

                    while (string.IsNullOrEmpty(name))
                    {
                        Console.WriteLine();
                        Console.Write("Enter your ID number: ");

                        var inputId = Console.ReadLine();

                        while (!int.TryParse(inputId, out ID))
                        {
                            Console.WriteLine("This is not a Valid ID number!");
                            inputId = Console.ReadLine();
                        }

                        name = CustomerController.FindCustomerName(ID);

                        if (!string.IsNullOrEmpty(name))
                        {
                            CCustomer.CustomerId = ID;
                            break;
                        }

                        Console.WriteLine($"Customer with ID #{ID} does not exist");
                    }

                    var date = DateTime.Now;
                    Console.WriteLine($"\nHello, {name}, on {date:d} at {date:t}!");
                    Console.WriteLine("Enter any key to Continue: ");
                    Console.ReadKey(true);
                    Console.Clear();
                    Console.WriteLine("\nSelect a destination: ");
                    LocationController.DisplayLocations();
                    Console.Write("Select Destination by ID, ex: '1': ");
                    break;
                }
                else if (option1 == "n")
                {
                    CustomerController.AddCustomerToDB();
                    Console.Clear();
                    Console.WriteLine("Customer has been Registered");
                }
                else if (option1 == "c")
                {
                    Console.Clear();
                    CustomerController.DisplayCustomers();
                }
                else if (option1 == "u")
                {
                    Console.WriteLine("");
                    Console.Write("Enter your ID number: ");

                    var idnumber = Console.ReadLine();
                    int ID;
                    while (!int.TryParse(idnumber, out ID))
                    {
                        Console.WriteLine("This is not a ID number!");
                        idnumber = Console.ReadLine();
                    }
                    //requires a second input validation check to make certain that the ID given exists

                    CustomerController.ChangeCustomerName(ID);
                    Console.Clear();
                    Console.WriteLine("Customer Name has been Updated");
                }
                else
                {
                    Console.Clear();
                    Console.WriteLine($"\n ({i}) incorrect input, Please: 'Select a letter from Options'");
                }
            }

            var idnumber2 = Console.ReadLine();
            int ID2;

            while (!int.TryParse(idnumber2, out ID2))
            {
                Console.WriteLine("This is not a ID number!");
                idnumber2 = Console.ReadLine();
            }
            //requires a second input validation check to make certain that the ID given exists


            for (int i = 0; i <= 100; i++)
            {
                Console.WriteLine("");
                string name = CustomerController.FindCustomerName(CCustomer.CustomerId);
                Console.Write($"Welcome {name}, ");
                Console.WriteLine(LocationController.FindLocationName(ID2));
                InventoryController.DisplayInventory(ID2);
                Console.Write("options: 'p' Place Order, 'x' Exit, 'v' view location Order History, 'y' view your own Order History: ");
                string        options2 = Console.ReadLine();
                List <Orders> orders   = new List <Orders>();
                if (options2 == "p")
                {
                    OrderHistoryController.AddToOrderHistory(CCustomer.CustomerId, ID2);
                    int oID = OrderHistoryController.NewOrderID();
                    Console.Clear();

                    for (int z = 0; z <= 100; z++)
                    {
                        InventoryController.DisplayInventory(ID2);
                        OrdersController.DisplayCurrentOrder(orders);


                        Console.WriteLine("options: 'a' Add to order, 'c' complete order: ");
                        string option3 = Console.ReadLine();
                        if (option3 == "a")
                        {
                            Console.WriteLine("");
                            Console.Write("Select Product ID: ");

                            var idnumber3 = Console.ReadLine();
                            int PID;
                            while (!int.TryParse(idnumber3, out PID))
                            {
                                Console.WriteLine("This is not a ID number!");
                                idnumber3 = Console.ReadLine();
                            }
                            //requires a second input validation check to make certain that the ID given exists

                            Console.WriteLine("");
                            Console.Write("Select Amount: ");

                            var idnumber4 = Console.ReadLine();
                            int a;
                            while (!int.TryParse(idnumber4, out a))
                            {
                                Console.WriteLine("This is not a number!");
                                idnumber4 = Console.ReadLine();
                            }

                            var O = new Orders {
                                ProductId = PID, OrderId = oID, Amount = a
                            };
                            orders.Add(O);
                            Console.Clear();
                        }
                        else if (option3 == "c")
                        {
                            foreach (var order in orders)
                            {
                                int a = InventoryController.RemoveFromInventory(ID2, order.ProductId, order.Amount);
                                if (a == 0)
                                {
                                }
                                else
                                {
                                    OrdersController.AddToOrders(order.OrderId, order.ProductId, a);
                                }
                            }
                            Console.WriteLine("your order has been completed, check your order history for more details");
                            z = 200;
                            Console.WriteLine("Enter any key to Continue: ");
                            Console.ReadKey(true);
                            Console.Clear();
                        }
                        else
                        {
                            Console.Clear();
                            Console.WriteLine($"\n ({z}) incorrect input, Please: 'Select a letter from Options'");
                        }
                    }
                    //break;
                }
                else if (options2 == "x")
                {
                    //DeleteUnusedOrderHistory(oID);
                    //This requires that a sql script is run on DataBase:
                    //DBCC CHECKIDENT (OrderHistory, RESEED, 1);
                    //DBCC CHECKIDENT (OrderHistory, RESEED);

                    break;
                }
                else if (options2 == "v")
                {
                    Console.WriteLine("");
                    OrderHistoryController.DisplayOrderHistoryLocation(ID2);
                    Console.WriteLine("Enter any key to Continue: ");
                    Console.ReadKey(true);
                    Console.Clear();
                }
                else if (options2 == "y")
                {
                    Console.WriteLine("");
                    OrderHistoryController.DisplayOrderHistoryCustomer(CCustomer.CustomerId);
                    Console.WriteLine("Enter any key to Continue: ");
                    Console.ReadKey(true);
                    Console.Clear();
                }
                else
                {
                    Console.Clear();
                    Console.WriteLine($"\n ({i}) incorrect input, Please: 'Select a letter from Options'");
                }
                //Console.ReadKey(true);
            }
        }