public async Task <IActionResult> OnPostAsync(int?id) { if (id == null) { return(NotFound()); } var 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 */) { //Log the error (uncomment ex variable name and write a log.) return(RedirectToAction("./Delete", new { id, saveChangesError = true })); } }
public async Task <IActionResult> OnPostAsync(int id) { try { if (await _context.Departments.AnyAsync( m => m.DepartmentID == id)) { // Department.rowVersion value is from when the entity // was fetched. If it doesn't match the DB, a // DbUpdateConcurrencyException exception is thrown. _context.Departments.Remove(Department); await _context.SaveChangesAsync(); } return(RedirectToPage("./Index")); } catch (DbUpdateConcurrencyException) { return(RedirectToPage("./Delete", new { concurrencyError = true, id = id })); } }