public DataTable SaveBankChequeBook()
        {
            BankChequeBookDAL bankChequeBook = new BankChequeBookDAL();

            try
            {
                LumexDBPlayer db = LumexDBPlayer.Start(true);
                DataTable dt = bankChequeBook.SaveBankChequeBook(this, db);
                db.Stop();

                return dt;
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                bankChequeBook = null;
            }
        }