public ActionResult PhucHoiMacDinh() { var oldData = _mailRepository.GetAll(); foreach (var item in oldData) { _mailRepository.Delete(item.ID); } _mailRepository.SaveChange(); var caiDat = new List <Mail>() { new Mail { TenMail = "XacNhanDaDangKy.html", ValueOfMail = 0 }, new Mail { TenMail = "fromAdmin.html", ValueOfMail = 1 }, new Mail { TenMail = "changeRoom.html", ValueOfMail = 2 }, new Mail { TenMail = "notAccept.html", ValueOfMail = 3 }, new Mail { TenMail = "requestToAdmin.html", ValueOfMail = 4 }, new Mail { TenMail = "toMembers.html", ValueOfMail = 5 }, new Mail { TenMail = "*****@*****.**", ValueOfMail = 6 }, new Mail { TenMail = "dung1997", ValueOfMail = 7 } }; foreach (var cd in caiDat) { _mailRepository.Add(cd); } _mailRepository.SaveChange(); return(View("CaiDatThanhCong")); }