The user repository.
Inheritance: IUserRepository
 public AdminController(UserRepository userRepository)
 {
     this.userRepository = userRepository;
     this.employeeRepository = new EmployeeRepository(new DataBaseContext());
 }
 public AdminController(UserRepository userRepository, IEmployeeRepository employeeRepository)
 {
     this.userRepository = userRepository;
     this.employeeRepository = employeeRepository;
 }