/// <summary>
        /// 获取当前页面勾选情况所代表的合订列表
        /// </summary>
        private string GetBindList()
        {
            List <string> ls = new List <string>();

            if (dataGridView_Periodical.Rows.Count <= 0)
            {
                throw new Exception("error");
            }
            foreach (DataGridViewRow i in dataGridView_Periodical.Rows)
            {
                var dgvCheck = (DataGridViewCheckBoxCell)i.Cells[0];
                if (Convert.ToBoolean(dgvCheck.EditedFormattedValue))
                {
                    ls.Add(i.Cells[1].Value.ToString());
                }
            }
            return(PeriodicalBinding.GetBindingListString(ls));
        }