public void AddOrder()
        {
            OrderOperations orderOps = new OrderOperations();

            CustomerInput custIn      = new CustomerInput();
            bool          isValidName = false;

            Console.Clear();
            Console.WriteLine("Add Order");
            Console.WriteLine("***************************\n");

            while (!isValidName)
            {
                Console.Write("Please enter the customer name: ");
                custIn.CustName = Console.ReadLine();
                isValidName     = !string.IsNullOrEmpty(custIn.CustName);
            }

            bool isValidState = false;

            while (!isValidState)
            {
                Console.Write("\nPlease enter a state: ");
                custIn.State = Console.ReadLine().ToUpper();

                TaxRateOperations taxOps = new TaxRateOperations();
                if (taxOps.IsAllowedState(custIn.State))
                {
                    Console.WriteLine("\nThat is a valid state");
                    TaxRate rate = taxOps.GetTaxRateFor(custIn.State);
                    isValidState = true;
                    Console.WriteLine("\nThe tax rate for {0} is {1:p}", rate.State, rate.TaxPercent);
                }
                else
                {
                    Console.WriteLine("\nThat is not a valid state");
                }
            }

            bool isValidProduct = false;

            while (!isValidProduct)
            {
                Console.Write("\nPlease enter a product type: ");
                custIn.ProductType = Console.ReadLine();

                ProductOperations prodOps = new ProductOperations();
                if (prodOps.IsExistingProduct(custIn.ProductType))
                {
                    Console.WriteLine("\nThat is a valid product.");
                    Product prod = prodOps.GetProductFor(custIn.ProductType);
                    isValidProduct = true;
                }
                else
                {
                    Console.WriteLine("\nThat is not one of our products.");
                }
            }

            bool isValidArea = false;

            while (!isValidArea)
            {
                Console.Write("\nPlease enter flooring area in square feet: ");
                decimal floorArea;
                bool    isDecimal = decimal.TryParse(Console.ReadLine(), out floorArea);
                if (isDecimal)
                {
                    isValidArea = true;
                    custIn.Area = floorArea;
                }
            }

            Console.Write("\nReady to create new order? Y/N ");

            if (Console.ReadLine().ToUpper() == "N")
            {
                MenuDisplay();
            }
            custIn.OrderNumber = 0;
            DateTime orderDate = default(DateTime);

            orderOps.CreateNewOrder(custIn, orderDate);
            Console.WriteLine("\nOk, your order has been created!");
            Console.ReadLine();
        }