static void Main(string[] args) { PopulateDb(); while (true) { var choice = new UIServices(); var UserChoiseCategory = choice.UserChoiceCategory(); List <Item> products = new List <Item>(); User nikola = new User("Nikola"); Publisher publisher = new Publisher(); if (UserChoiseCategory == 1) { products.AddRange(Db.Parts); } else if (UserChoiseCategory == 2) { products.AddRange(Db.Modules); } else if (UserChoiseCategory == 3) { products.AddRange(Db.Configurations); } while (true) { var filterChoise = choice.UserChoiceFilter(); if (filterChoise == 1) { while (true) { choice.ShowProducts(products); var userContinue = choice.UserContinueShopingAction(); if (userContinue == 1) { continue; } else if (userContinue == 2) { break; } else if (userContinue == 3) { ShoppingCart.ShowUserProducts(); Console.ReadLine(); int choice1 = choice.UserShopingChartAction(); if (choice1 == 1) { string message = ShoppingCart.ShowProductPrices(); // Console.WriteLine(ShoppingCart.ShowProductPrices()); Console.ReadLine(); choice.SendEventMenu(message, nikola, publisher); Console.ReadLine(); } break; } } } else if (filterChoise == 2) { while (true) { choice.FilterByPrice(products); var userContinue = choice.UserContinueShopingAction(); if (userContinue == 1) { continue; } else if (userContinue == 2) { break; } else if (userContinue == 3) { ShoppingCart.ShowUserProducts(); Console.ReadLine(); Console.Clear(); int choice1 = choice.UserShopingChartAction(); if (choice1 == 1) { string message = ShoppingCart.ShowProductPrices(); //Console.WriteLine(ShoppingCart.ShowProductPrices()); Console.ReadLine(); choice.SendEventMenu(message, nikola, publisher); Console.ReadLine(); } break; } } } else if (filterChoise == 3) { while (true) { if (UserChoiseCategory == 1) { choice.FilterByType(Db.Parts); } else if (UserChoiseCategory == 2) { choice.filterByTypeModules(Db.Modules); } else if (UserChoiseCategory == 3) { choice.filterByTypeConfigurations(Db.Configurations); } var userContinue = choice.UserContinueShopingAction(); if (userContinue == 1) { continue; } else if (userContinue == 2) { break; } else if (userContinue == 3) { ShoppingCart.ShowUserProducts(); Console.ReadLine(); int choice1 = choice.UserShopingChartAction(); if (choice1 == 1) { string message = ShoppingCart.ShowProductPrices(); // Console.WriteLine(ShoppingCart.ShowProductPrices()); Console.ReadLine(); choice.SendEventMenu(message, nikola, publisher); Console.ReadLine(); } break; } } } break; } } }