public void servicestart(OrderService neworder) { bool a = true; while (a == true) { Console.WriteLine("choose in the following:" + "\n" + " 1.addorder" + "\n" + " 2.deleteorder" + "\n" + " 3.changeorder" + "\n" + " 4.searchorder" + "\n" + " 5.look at all orders" + "\n" + " 6.Finish"); string option = Console.ReadLine(); switch (option) { case "1": neworder.creatorder(); break; case "2": neworder.Deletelist(); break; case "3": neworder.ChangeList(); break; case "4": neworder.Searchlist(); break; case "5": neworder.ShowList(); break; case "6": a = false; break; default: Console.WriteLine("error!please make a choice from 1-6"); break; } } }