static void Main(string[] args) { { int a = 0; int b = 0; int c = 0; do { Console.WriteLine("========İsmetin Marketi========"); Console.WriteLine("1-Mehsullar uzerinde emeliyyat aparmaq"); Console.WriteLine("2-Satislar uzerinde emeliyyat aparmaq"); Console.WriteLine("3-Sistemden cixmaq"); Console.WriteLine("Hansi emeliyati etmek isteyirsen"); string stra = Console.ReadLine(); while (!int.TryParse(stra, out a)) { Console.WriteLine("Please enter the correct number"); stra = Console.ReadLine(); } if (a <= 0 || a >= 4) { throw new ArgumentOutOfRangeException("Bele emeliyat yoxdu"); } switch (a) { case 1: do { Console.WriteLine("1-Add products"); Console.WriteLine("2-Change products"); Console.WriteLine("3-Clear products"); Console.WriteLine("4-All products"); Console.WriteLine("5-Show category product"); Console.WriteLine("6-Price range show product"); Console.WriteLine("7-Search name for products"); Console.WriteLine("0-Exit"); Console.WriteLine("What surgery do you want to do"); string strb = Console.ReadLine(); while (!int.TryParse(strb, out b)) { Console.WriteLine("Please enter the number correct"); strb = Console.ReadLine(); } if (b <= -1 || b >= 8) { throw new ArgumentOutOfRangeException("Bele emeliyat yoxdu"); } switch (b) { case 1: MenuService.AddProduct(); break; case 2: MenuService.ChangeProducts(); break; case 3: MenuService.ClearProduct(); break; case 4: MenuService.AllProductsView(); break; case 5: MenuService.SerachforCategoryproduct(); break; case 6: MenuService.SearchforPricCeProduct(); break; case 7: MenuService.SearchforNameProduct(); break; default: break; } } while (b != 0); break; case 2: do { Console.WriteLine("1-Add new sales"); Console.WriteLine("2-Return of sale"); Console.WriteLine("3-Delete sale"); Console.WriteLine("4-Display all sale"); Console.WriteLine("5-Display range of date sale"); Console.WriteLine("6-Display range of price sale"); Console.WriteLine("7-Display o the one day sale"); Console.WriteLine("8-Display of No sale"); Console.WriteLine("0-Exit"); Console.WriteLine("================================="); Console.WriteLine("Which operation do you want to do"); string strc = Console.ReadLine(); while (!int.TryParse(strc, out c)) { Console.WriteLine("Ededi duzgun daxil edin"); strc = Console.ReadLine(); } if (c <= -1 || c >= 9) { throw new ArgumentOutOfRangeException("Bele emeliyat yoxdu"); } switch (c) { case 1: MenuService.AddSell(); break; case 2: MenuService.ReturnOfProduct(); break; case 3: MenuService.DeleteSale(); break; case 4: MenuService.AllSaleView(); break; case 5: MenuService.DisplayRangeOfDateSale(); break; case 6: MenuService.Displayrangeofpricesale(); break; case 7: MenuService.DisplayTheOneDaySale(); break; case 8: MenuService.DisplayTheNoSale(); break; default: break; } break; } while (b != 0); break; } } while (a != 3); } }