public async Task <IActionResult> Edit(int id, [Bind("EnrollmentID,CourseID,StudentID,Grade")] Enrollment enrollment) { if (id != enrollment.EnrollmentID) { return(NotFound()); } if (ModelState.IsValid) { try { _context.Update(enrollment); await _context.SaveChangesAsync(); } catch (DbUpdateConcurrencyException) { if (!EnrollmentExists(enrollment.EnrollmentID)) { return(NotFound()); } else { throw; } } return(RedirectToAction(nameof(Index))); } ViewData["CourseID"] = new SelectList(_context.Course, "CourseID", "CourseID", enrollment.CourseID); ViewData["StudentID"] = new SelectList(_context.Student, "StudentID", "StudentID", enrollment.StudentID); return(View(enrollment)); }