BKI_DichVuMatDat.f306_HT_USER_GROUP.delete_ht_user_group C# (CSharp) Method

        private void delete_ht_user_group()
        {
            if (!CGridUtils.IsThere_Any_NonFixed_Row(m_fg)) return;
            if (!CGridUtils.isValid_NonFixed_RowIndex(m_fg, m_fg.Row)) return;
            var dlg = DevExpress.XtraEditors.XtraMessageBox.Show("Bạn có chắc chắn muốn xóa dữ liệu?", "THÔNG BÁO", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
            if (dlg != System.Windows.Forms.DialogResult.Yes) return;

            US_HT_USER_GROUP v_us = new US_HT_USER_GROUP();
            grid2us_object(v_us, m_fg.Row);
            try
            {
                v_us.BeginTransaction();
                v_us.Delete();
                v_us.CommitTransaction();
                m_fg.Rows.Remove(m_fg.Row);
            }
            catch (Exception v_e)
            {
                v_us.Rollback();
                CDBExceptionHandler v_objErrHandler = new CDBExceptionHandler(v_e,
                    new CDBClientDBExceptionInterpret());
                v_objErrHandler.showErrorMessage();
            }
        }