fjfjfsd

public class UserManagementView {

        private void Edit()
        {
            UserRepository userRepo = new UserRepository("users.txt");
            Console.Clear();

            Console.WriteLine("Edit user id : ");
            int userId = Convert.ToInt32(Console.ReadLine());


            User user = userRepo.GetById(userId);
            if (user == null)
            {
                Console.WriteLine("User not found!");
            }
            else
            {
                Console.WriteLine("old username : " + user.username);

                Console.WriteLine("old password : " + user.password);

                Console.Write("Enter new username : ");
                user.username = Console.ReadLine();


                Console.Write("Enter new password : ");
                user.password = Console.ReadLine();


                Console.WriteLine("God power ? ");
                    user.isAdmin = Convert.ToBoolean(Console.ReadLine());

                userRepo.Save(user);
                Console.WriteLine("User edited successfully");
                Console.ReadKey(true);
                UserManagementView asd = new UserManagementView();
                asd.Show();
            }
        }
        private void Delete()
        {
            UserRepository userRepo = new UserRepository("users.txt");
            Console.Clear();

            Console.WriteLine("Delete user id : ");
            int userId = Convert.ToInt32(Console.ReadLine());

            User user = userRepo.GetById(userId);
            if (user == null)
            {
                Console.WriteLine("User not found!");
            }

            else
            {
                userRepo.Delete(user);
                Console.WriteLine("User deleted!");
            }
            Console.ReadKey(true);
            UserManagementView asd = new UserManagementView();
            asd.Show();


        }


        private void GetAll()
        {
            Console.Clear();

            UserRepository UserRepo = new UserRepository("users.txt");
            List<User> users = UserRepo.GetAll();

            foreach (User user in users)
            {

                Console.WriteLine("User id : " + user.id);
                Console.WriteLine("name : " + user.firstName);
                Console.WriteLine("Password : " + user.password);
                Console.WriteLine("#############");

            }

            Console.ReadKey(true);
            UserManagementView asd = new UserManagementView();
            asd.Show();

        }
        private void Add()
        {

            Console.Clear();

            User user = new User();

            Console.WriteLine("Add User : ");
            user.username = Console.ReadLine();

            Console.WriteLine("password : ");
            user.password = Console.ReadLine();

            Console.WriteLine("First Name : ");
            user.firstName = Console.ReadLine();

            Console.WriteLine("Last Name : ");
            user.lastName = Console.ReadLine();


            Console.WriteLine("Give admin power?(true or false)");
            user.isAdmin = Convert.ToBoolean(Console.ReadLine());

            UserRepository userRepo = new UserRepository("users.txt");
            userRepo.Save(user);
            Console.WriteLine("User saved successfully");
            Console.ReadKey(true);
            UserManagementView asd = new UserManagementView();

            asd.Show();
        }

        public void Show()
        {
            while (true)
            {
                UserManagement choice = RenderMenu();
                while (true)
                {

                    try
                    {
                        switch (choice)
                        {

                            case UserManagement.Insert:
                                {
                                    Add();
                                    break;
                                }
                            case UserManagement.Delete:
                                {
                                    Delete();
                                    break;
                                }

                            case UserManagement.Select:
                                {
                                    GetAll();
                                    break;
                                }
                            case UserManagement.Exit:
                                {
                                    Environment.Exit(0);
                                    break;
                                }
                            case UserManagement.Update:
                                {
                                    Edit();
                                    break;
                                }
                        }
                    }
                    catch (Exception ex)
                    {
                        Console.Clear();
                        Console.WriteLine(ex.Message);
                        Console.ReadKey(true);
                    }
                }
            }
        }

          private UserManagement RenderMenu()
        {
            while (true)
            {
                Console.Clear();
                Console.WriteLine("User management:");
                Console.WriteLine("[G]et all Users");
                Console.WriteLine("[A]dd User");
                Console.WriteLine("[E]dit User");
                Console.WriteLine("[D]elete User");
                Console.WriteLine("E[x]it");

                string choice = Console.ReadLine();
                switch (choice.ToUpper())
                {
                    case "G":
                        {
                            return UserManagement.Select;
                        }

                    case "A":
                        {
                            return UserManagement.Insert;
                        }
                    case "E":
                        {
                            return UserManagement.Update;
                        }
                    case "D":
                        {
                            return UserManagement.Delete;
                        }
                    case "X":
                        {
                            return UserManagement.Exit;
                        }
                    default:
                        {
                            Console.WriteLine("Invalid choice.");
                            Console.ReadKey(true);
                            break;
                        }
                }
            }
        }


    }