// GET: Instructors
public async Task <IActionResult> Index(int?id, int?courseID)
{
if (id != null)
{
var data = await _instructorService.GetCoursesByInstructor(id.Value);
ViewBag.Courses = data.Select(x => _mapper.Map <CourseDTO>(x)).ToList();
}
if (courseID != null)
{
var dataCourse = await _instructorService.GetStudentsByCourse(courseID.Value);
ViewBag.Students = dataCourse.Select(x => _mapper.Map <EnrollmentDTO>(x)).ToList();
}
var dataList = await _instructorService.GetAll();
var listInstructors = dataList.Select(x => _mapper.Map <InstructorDTO>(x)).ToList();
return(View(listInstructors));
}