public async Task <IActionResult> ElGradebookTeacherAdd(int elGradebookId)
{
var elGradebook = await _elGradebookRepository.GetElGradebookAsync(elGradebookId);
if (elGradebook == null)
{
return(NotFound());
}
var elGradebookTeacher = new ElGradebookTeacher {
ElGradebookId = elGradebookId,
ElGradebook = elGradebook
};
ViewBag.Teachers = _selectListRepository.GetSelectListAppUsersTeachers();
return(View(elGradebookTeacher));
}