// GET: Course
public async Task <ActionResult> Index(int?SelectedDepartment, int?studentId)
{
ViewBag.StudentId = studentId;
var departments = await departmentService.GetDepartmentsAsync();
ViewBag.SelectedDepartment = new SelectList(departments, "DepartmentID", "Name", SelectedDepartment);
int departmentID = SelectedDepartment.GetValueOrDefault();
IQueryable <Course> courses = db.Courses
.Where(c => !SelectedDepartment.HasValue || c.DepartmentID == departmentID)
.OrderBy(d => d.CourseID)
.Include(d => d.Department);
return(View(courses.ToList()));
}
// GET: Departments
public async Task <IActionResult> Index()
{
var departments = await departmentService.GetDepartmentsAsync();
return(View(departments));
}