static void Main(string[] args) { EmployeeController useControl = new EmployeeController(); useControl.AddData(); int choice = 0; do { Console.WriteLine(); Console.WriteLine("EMPLOYEE MANAGEMENT"); Console.WriteLine("========================================"); Console.WriteLine("1. Show all employees"); Console.WriteLine("2. Add new employee"); Console.WriteLine("3. Update employee"); Console.WriteLine("4. Find employee"); Console.WriteLine("5. Delete employee"); Console.WriteLine("6. Show best employees"); Console.WriteLine("7. Exit"); Console.WriteLine("--Please select the option--"); do { try { choice = Convert.ToInt32(Console.ReadLine()); break; } catch { } } while (true); switch (choice) { case 1: useControl.ShowAll(); break; case 2: useControl.AddEmployee(); break; case 3: useControl.EditEmployee(); break; case 4: useControl.FindEmployee(); break; case 5: useControl.removeEmployee(); break; case 6: useControl.ShowBestEmployees(); break; } } while (choice != 7); }