public async Task <IActionResult> OnPostAsync(int?id) { if (id == null) { return(NotFound()); } Student = await _context.Students.FindAsync(id); if (Student == null) { return(NotFound()); } try { _context.Students.Remove(Student); await _context.SaveChangesAsync(); return(RedirectToPage("./Index")); } catch (DbUpdateException /* ex */) { //To log the error uncomment the ex and write the log return(RedirectToAction("./Delete", new { id = id, saveChangesError = true })); } }
public async Task <IActionResult> OnPostAsync() { if (!ModelState.IsValid) { return(Page()); } _context.Attach(Student).State = EntityState.Modified; try { await _context.SaveChangesAsync(); } catch (DbUpdateConcurrencyException) { if (!StudentExists(Student.ID)) { return(NotFound()); } else { throw; } } return(RedirectToPage("./Index")); }
public async Task <IActionResult> OnPostAsync() { if (!ModelState.IsValid) { return(Page()); } _context.Enrollments.Add(Enrollment); await _context.SaveChangesAsync(); return(RedirectToPage("./Index")); }
public async Task <IActionResult> OnPostAsync(int?id) { if (id == null) { return(NotFound()); } Course = await _context.Courses.FindAsync(id); if (Course != null) { _context.Courses.Remove(Course); await _context.SaveChangesAsync(); } return(RedirectToPage("./Index")); }
public async Task <IActionResult> OnPostAsync(int?id) { if (id == null) { return(NotFound()); } Enrollment = await _context.Enrollments.FindAsync(id); if (Enrollment != null) { _context.Enrollments.Remove(Enrollment); await _context.SaveChangesAsync(); } return(RedirectToPage("./Index")); }
public async Task <IActionResult> OnPostAsync() { if (!ModelState.IsValid) { return(Page()); } var emptyStudent = new Student(); if (await TryUpdateModelAsync <Student>( emptyStudent, "student", //Prefix for form value s => s.FirstName, s => s.LastName, s => s.EnrollmentDate)) { _context.Students.Add(emptyStudent); await _context.SaveChangesAsync(); return(RedirectToPage("./Index")); } return(null); }