public static int InsertHoaDonNhap(string _MaHDN, DateTime _NgayNhap, int _TongTien, string _GhiChu, string _MaNV) { try { Model.HoaDonNhapMod hdn = new Model.HoaDonNhapMod(_MaHDN, _NgayNhap, _TongTien, _GhiChu, _MaNV); return(hdn.InsertHoaDonNhap()); } catch { return(0); } }