/// <summary>
&nbsp;       /// 实现DataGridView控件中CheckBox列的使用
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        PRivate void dgvTradList_CellContentClick(object sender, DataGridViewCellEventargs e)
        {
            if (e.ColumnIndex == 0 && e.RowIndex != -1)
            {
                if ((bool)dgvTradList.Rows[e.RowIndex].Cells[0].EdITeDFormattedValue == true)
                {
                    dgvTradList.Rows[e.RowIndex].Cells[0].Value = false;
                }
                else
                {
                    dgvTradList.Rows[e.RowIndex].Cells[0].Value = true;
                }
            }