public DonHang LayMaHD(string iduser) { DonHang dh = new DonHang(); dh = ((from p in db.DonHangs where p.IDUser.StartsWith(iduser) orderby p.MaDonHang descending select p).Take(1)).Single(); return dh; }
public bool insertHD(string IDUser, DateTime Ngay, decimal TriGiaDH, string matrangthai) { try { DonHang dh = new DonHang(); dh.IDUser = IDUser; dh.Ngay = Ngay; dh.TriGiaDH = TriGiaDH; dh.MaTrangThai = matrangthai; db.DonHangs.Add(dh); db.SaveChanges(); return true; } catch { return false; } }