public async Task <IActionResult> Create(Staff staff) { if (ModelState.IsValid) { var user = new IdentityUser { UserName = staff.adEmail, Email = staff.adEmail }; var result = await _userManager.CreateAsync(user, staff.password); if (!result.Succeeded) { foreach (var error in result.Errors) { ModelState.AddModelError(string.Empty, error.Description); await ViewDataAddressesAndStores(); return(View(staff)); } } user = await _userManager.FindByNameAsync(staff.adEmail); await _userManager.AddToRoleAsync(user, staff.isAdmin? "Admin" : "Employee"); staff.idUser = user.Id; await staffBusiness.saveStaff(staff); return(RedirectToAction(nameof(Index))); } await ViewDataAddressesAndStores(); return(View(staff)); }