public bool Update(PhieuThuTienSH phieuThuTienSH)
        {
            try
            {
                string         query       = "SELECT * FROM PhieuThuTienSH";
                SqlDataAdapter dataAdapter = new SqlDataAdapter(query, connection);
                table            = GetData();
                table.PrimaryKey = new DataColumn[] { table.Columns[0] };
                DataRow row = table.Rows.Find(phieuThuTienSH.PhieuThuTienSHId);

                if (row != null)
                {
                    row["tinhTrang"]   = phieuThuTienSH.TinhTrang;
                    row["PhongId"]     = phieuThuTienSH.PhongId1;
                    row["NhanVienId"]  = phieuThuTienSH.NhanVienId1;
                    row["NguoiDungId"] = phieuThuTienSH.NguoiDungId1;
                    row["ngayThu"]     = phieuThuTienSH.NgayThu;
                    row["soDienDau"]   = phieuThuTienSH.SoDienDau;
                    row["soDienCuoi"]  = phieuThuTienSH.SoDienCuoi;
                    row["soNuocDau"]   = phieuThuTienSH.SoNuocDau;
                    row["soNuocCuoi"]  = phieuThuTienSH.SoNuocCuoi;
                    row["soDienThuc"]  = phieuThuTienSH.SoDienThuc;
                    row["soNuocThuc"]  = phieuThuTienSH.SoNuocThuc;
                    row["donGiaDien"]  = phieuThuTienSH.DonGiaDien;
                    row["donGiaNuoc"]  = phieuThuTienSH.DonGiaNuoc;
                    row["tienThuDien"] = phieuThuTienSH.TienThuDien;
                    row["tienThuNuoc"] = phieuThuTienSH.TienThuNuoc;
                    row["phiDichVu"]   = phieuThuTienSH.PhiDichVu;
                    row["tong"]        = phieuThuTienSH.Tong;
                    row["tenNguoiThu"] = phieuThuTienSH.TenNguoiThu;
                    row["ghiChu"]      = phieuThuTienSH.GhiChu;
                }

                SqlCommandBuilder sqlCommandBuilder = new SqlCommandBuilder(dataAdapter);
                dataAdapter.Update(table);
                return(true);
            }
            catch
            {
                return(false);
            }
        }
        public bool Insert(PhieuThuTienSH phieuThuTienSH)
        {
            try
            {
                string         query       = "SELECT * FROM PhieuThuTienSH";
                SqlDataAdapter dataAdapter = new SqlDataAdapter(query, connection);
                table = GetData();
                DataRow row = table.NewRow();
                row["tinhTrang"]   = phieuThuTienSH.TinhTrang;
                row["PhongId"]     = phieuThuTienSH.PhongId1;
                row["NhanVienId"]  = phieuThuTienSH.NhanVienId1;
                row["NguoiDungId"] = phieuThuTienSH.NguoiDungId1;
                row["ngayThu"]     = phieuThuTienSH.NgayThu;
                row["soDienDau"]   = phieuThuTienSH.SoDienDau;
                row["soDienCuoi"]  = phieuThuTienSH.SoDienCuoi;
                row["soNuocDau"]   = phieuThuTienSH.SoNuocDau;
                row["soNuocCuoi"]  = phieuThuTienSH.SoNuocCuoi;
                row["soDienThuc"]  = phieuThuTienSH.SoDienThuc;
                row["soNuocThuc"]  = phieuThuTienSH.SoNuocThuc;
                row["donGiaDien"]  = phieuThuTienSH.DonGiaDien;
                row["donGiaNuoc"]  = phieuThuTienSH.DonGiaNuoc;
                row["tienThuDien"] = phieuThuTienSH.TienThuDien;
                row["tienThuNuoc"] = phieuThuTienSH.TienThuNuoc;
                row["phiDichVu"]   = phieuThuTienSH.PhiDichVu;
                row["tong"]        = phieuThuTienSH.Tong;
                row["tenNguoiThu"] = phieuThuTienSH.TenNguoiThu;
                row["ghiChu"]      = phieuThuTienSH.GhiChu;


                table.Rows.Add(row);

                SqlCommandBuilder sqlCommandBuilder = new SqlCommandBuilder(dataAdapter);
                dataAdapter.Update(table);

                return(true);
            }
            catch
            {
                return(false);
            }
        }