public async Task <IActionResult> Index(int?id, int?courseId)
{
var allInstructors = await _instructorRepository.InstructorsAsync();
var model = new InstructorViewModel()
{
Instructors = allInstructors
};
if (id != null)
{
ViewData["InstructorId"] = id.Value;
var instructor = model.Instructors.FirstOrDefault(x => x.InstructorId == id);
if (instructor != null)
{
model.Courses = instructor.CourseAssignments.Select(s => s.Course); //LinqPad kullanıldı.
}
}
if (courseId != null)
{
ViewData["CourseId"] = courseId.Value;
model.Enrollments = model.Courses.FirstOrDefault(x => x.Id == courseId)?.Enrollments;
}
return(View(model));
}