public static int DeleteChiTietBan(string _MaHDB, string _STTMA)
 {
     try
     {
         Model.ChiTietBanMod ctb = new Model.ChiTietBanMod(_MaHDB, _STTMA);
         return(ctb.DeleteChiTietBan());
     }
     catch { return(0); }
 }
 public static DataSet SearchChiTietBanbyMaHDB(string _MaHDB)
 {
     try
     {
         Model.ChiTietBanMod ctb = new Model.ChiTietBanMod(_MaHDB);
         return(ctb.SearchChiTietBanbyMaHDB());
     }
     catch { return(null); }
 }
 public static int UpdateChiTietBan(string _MaHDB, string _STTMA, int _SoLuong, int _ThanhTien)
 {
     try
     {
         Model.ChiTietBanMod ctb = new Model.ChiTietBanMod(_MaHDB, _STTMA, _SoLuong, _ThanhTien);
         return(ctb.UpdateChiTietBan());
     }
     catch { return(0); }
 }