winform 中datagridview隐藏某个控件

public void disableDgGrid()
        {
            foreach (DataGridViewRow row in dg.Rows)
            {
                if (row.Cells[2].Value == null)
                {
                    var rdo = (DataGridViewRadioButtonCell)this.dg[0, row.Index];
                    rdo.Display = false;
                }
            }
            this.Activate();
        }