static void ShowSubMenuStudentManagement()
{
string userChoose = String.Empty;
Console.Clear();
do
{
// Sub menu Student Management
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("====STUDENT MANAGEMENT MENU====");
Console.WriteLine("===============================");
Console.WriteLine("1. Add new Student");
Console.WriteLine("2. View all Students");
Console.WriteLine("3. Search Student");
Console.WriteLine("4. Delete Student");
Console.WriteLine("5. Update Student");
Console.WriteLine("6. Back to main menu");
Console.WriteLine("===============================");
// User choose
Console.BackgroundColor = ConsoleColor.Red;
Console.Write("Please choose: ");
userChoose = Console.ReadLine();
Console.ResetColor();
// Initialize command
StudentReceiver studentReciever = new StudentReceiver(Program.ListStudents);
StudentInvoker studentInvoker = new StudentInvoker();
switch (userChoose)
{
case "1": // Add new Student menu
// Create new object Student
ExecuteStudent(studentInvoker, new StudentCommand(studentReciever, CommandAction.Add));
break;
case "2": // View all students menu
// Empty list -> show waring message
ExecuteStudent(studentInvoker, new StudentCommand(studentReciever, CommandAction.ViewAll));
break;
case "3": // Search student menu
// Empty list -> show waring message
ExecuteStudent(studentInvoker, new StudentCommand(studentReciever, CommandAction.Search));
break;
case "4": // Delete student menu
// Empty list -> show waring message
ExecuteStudent(studentInvoker, new StudentCommand(studentReciever, CommandAction.Delete));
break;
case "5": // Update student menu
// Empty list -> show waring message
ExecuteStudent(studentInvoker, new StudentCommand(studentReciever, CommandAction.Update));
break;
case "6": // Back to main menu
ShowMainMenu();
break;
default:
Console.WriteLine("Not correct command. Please input only number (1, 2, 3, 4, 5 or 6)");
ShowSubMenuStudentManagement();
break;
}
} while (userChoose != "6");
}
private static void ExecuteStudent(StudentInvoker invoker, ICommand command)
{
invoker.SetCommand(command);
invoker.Invoke();
}