static void Main(string[] args) { // DISPLAY WELCOME PAGE AND RETURN USERS CHOICE FOR NEXT PAGE string NextPage = ConsoleControl.DisplayWelcomePage(); // DISPLAY PAGE USER CHOSE OR DISPLAY NOTHING IF USER CHOSE TO QUIT AND PASS CONTROL TO WHILE LOOP var items = ConsoleControl.DisplayLoginRegisterOrQuit(NextPage); // WHILE LOOP ALLOWS USER TO NAVIGATE BETWEEN PAGES AND GO BACK TO PREVIOUS PAGE OR LOGOUT OF ACCOUNT NextPage = items.Item1; String ThisPage; String PrevPage = "LOGOUT"; Customer CurrentCustomer = items.Item2; Location CurrentLocation = null; List <Product> ShoppingCart = new List <Product>(); List <int> Quantities = new List <int>(); Product ProductToBuy = null; while (NextPage != "QUIT") { if (NextPage == "LOG IN") { (NextPage, CurrentCustomer) = ConsoleControl.DisplayLoginRegisterOrQuit("LOG IN"); } else if (NextPage == "CUSTOMER HOMEPAGE") { ThisPage = NextPage; NextPage = ConsoleControl.DisplayCustomerHomePage(CurrentCustomer); if (NextPage == "GO BACK") { NextPage = PrevPage; } PrevPage = ThisPage; } else if (NextPage == "VIEW PRODUCTS") { ThisPage = NextPage; NextPage = ConsoleControl.DisplayProductsHome(); if (NextPage == "GO BACK") { NextPage = PrevPage; } PrevPage = ThisPage; } else if (NextPage == "VIEW STORE LOCATIONS") { ThisPage = NextPage; (NextPage, CurrentLocation) = ConsoleControl.DisplayStoreLocations(); if (NextPage == "CUSTOMER HOMEPAGE") { ShoppingCart = new List <Product>(); } PrevPage = ThisPage; } else if (NextPage == "GUITAR" || NextPage == "BASS" || NextPage == "DRUMS" || NextPage == "PIANO" || NextPage == "MIC" || NextPage == "ACC") { ThisPage = NextPage; PrevPage = "VIEW PRODUCTS"; (NextPage, ProductToBuy) = ConsoleControl.DisplayProductPage(NextPage); if (NextPage == "GO BACK") { NextPage = PrevPage; PrevPage = "CUSTOMER HOMEPAGE"; } else { PrevPage = ThisPage; } } else if (NextPage == "LOCATIONS WITH PRODUCT") { ThisPage = NextPage; (NextPage, CurrentLocation) = ConsoleControl.DisplayLocationsWithProduct(ProductToBuy); if (NextPage == "GO BACK") { NextPage = PrevPage; } else { int Quantity = ConsoleControl.DisplayQuantityPrompt(ProductToBuy, CurrentLocation); ShoppingCart.Add(ProductToBuy); Quantities.Add(Quantity); ProductToBuy = null; } PrevPage = ThisPage; } else if (NextPage == "STORE HOMEPAGE") { ThisPage = NextPage; NextPage = ConsoleControl.DisplayStoreHomePage(CurrentLocation); PrevPage = ThisPage; if (NextPage == "CUSTOMER HOMEPAGE") { CurrentLocation = null; ShoppingCart = new List <Product>(); } } else if (NextPage == "VIEW PRODUCTS AT STORE") { ThisPage = NextPage; NextPage = ConsoleControl.DisplayProductsAtStoreHome(CurrentLocation); if (NextPage == "GO BACK") { NextPage = "STORE HOMEPAGE"; } PrevPage = ThisPage; } else if (NextPage == "GUITAR FROM STORE" || NextPage == "BASS FROM STORE" || NextPage == "DRUMS FROM STORE" || NextPage == "PIANO FROM STORE" || NextPage == "MIC FROM STORE" || NextPage == "ACC FROM STORE") { ThisPage = NextPage; PrevPage = "VIEW PRODUCTS AT STORE"; (NextPage, ShoppingCart, Quantities) = ConsoleControl.DisplayProductAtStore(NextPage, CurrentLocation, ShoppingCart, Quantities); if (NextPage == "GO BACK") { NextPage = PrevPage; PrevPage = "STORE HOMEPAGE"; } else { PrevPage = ThisPage; } } else if (NextPage == "VIEW SHOPPING CART") { ThisPage = NextPage; NextPage = ConsoleControl.DisplayShoppingCart(true, ShoppingCart, Quantities); if (NextPage == "GO BACK") { NextPage = "VIEW PRODUCTS AT STORE"; } PrevPage = "STORE HOMEPAGE"; } else if (NextPage == "VIEW PAST ORDERS") { ThisPage = NextPage; ConsoleControl.DisplayPastOrders(CurrentCustomer); NextPage = "CUSTOMER HOMEPAGE"; PrevPage = "LOG OUT"; } else if (NextPage == "VIEW PAST ORDERS FROM LOCATION") { ThisPage = NextPage; ConsoleControl.DisplayPastOrdersFromLocation(CurrentLocation); NextPage = "STORE HOMEPAGE"; PrevPage = "CUSTOMER HOMEPAGE"; } else if (NextPage == "CHECKOUT") { NextPage = ConsoleControl.DisplayCheckoutHome(ShoppingCart, CurrentCustomer, CurrentLocation, Quantities); if (NextPage == "CUSTOMER HOMEPAGE") { ShoppingCart = new List <Product>(); Quantities = new List <int>(); } } else if (NextPage == "VIEW CUSTOMERS") { ThisPage = NextPage; ConsoleControl.DisplayCustomers(); NextPage = "CUSTOMER HOMEPAGE"; PrevPage = "LOG OUT"; } else if (NextPage == "LOGOUT") { ShoppingCart = new List <Product>(); Quantities = new List <int>(); CurrentLocation = null; CurrentCustomer = null; ProductToBuy = null; NextPage = ConsoleControl.DisplayWelcomePage(); ThisPage = NextPage; (NextPage, CurrentCustomer) = ConsoleControl.DisplayLoginRegisterOrQuit(NextPage); PrevPage = ThisPage; } } Console.WriteLine("\nCome back again soon!"); Console.WriteLine("\n----------------GOODBYE-----------------"); }