private void OnSave()
        {
            var updatedEmployees =
                ManagedEmployees
                .Where(x => x.EditStatus == EditStatus.Modified)
                .Select(x => x.Commit())
                .ToList();
            var newEmployees =
                ManagedEmployees
                .Where(x => x.EditStatus == EditStatus.New)
                .Select(x => x.Commit())
                .ToList();

            _humanResourcesService.ModifyManagedEmployees(updatedEmployees, newEmployees);

            ManagedEmployees.Clear();
            LoadManagedEmployees();
            IsReadOnly = true;
        }
 public void ModifyManagedEmployees(IList <ManagedEmployee> updatedEmployees, IList <ManagedEmployee> newEmployees)
 => _humanResourcesService.ModifyManagedEmployees(updatedEmployees, newEmployees);