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(int?id) { if (id == null) { return(NotFound()); } var student = await _context.Student .AsNoTracking() .FirstOrDefaultAsync(m => m.ID == id); if (student == null) { return(NotFound()); } try { _context.Student.Remove(student); await _context.SaveChangesAsync(); return(RedirectToPage("./Index")); } catch (DbUpdateException /* ex */) { //Log the error (uncomment ex variable name and write a log.) return(RedirectToAction("./Delete", new { id, saveChangesError = true })); } }
public async Task <IActionResult> OnPostAsync() { if (!ModelState.IsValid) { return(Page()); } _context.Student.Add(Student); await _context.SaveChangesAsync(); return(RedirectToPage("./Index")); }
public async Task <IActionResult> OnPostAsync(int?id) { if (id == null) { return(NotFound()); } Student = await _context.Student.FindAsync(id); if (Student != null) { _context.Student.Remove(Student); 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.FirstMidName, s => s.LastName, s => s.EnrollmentDate)) { _context.Student.Add(emptyStudent); await _context.SaveChangesAsync(); return(RedirectToPage("./Index")); } return(null); }