private void btnOK_Click(object sender, EventArgs e)
        {
            try
            {
                this.periodPriceList = bsList.DataSource as List <PeriodPrices>;

                dataManager.SetPeriodPrice(this.periodPriceList);

                this.Hide();

                this.DialogResult = DialogResult.OK;
            }
            catch (Exception error)
            {
                MessageBox.Show(error.Message, "信息提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }