private void dataGridView_CellParsing(object sender, DataGridViewCellParsingEventArgs e)
        {
                if (dataGridView.Columns[e.ColumnIndex].Name == "Colunm1")
                {
                    if (int.Parse(dataGridView.Rows[e.RowIndex].Cells["Column2"].Value.ToString()) < int.Parse(e.Value.ToString()))
                    {
                        MessageBox.Show("實施劑量不得超過醫囑劑量!", "注意!");
                        dataGridView.Rows[e.RowIndex].Cells["Column1"].Value = dataGridView.Rows[e.RowIndex].Cells["Column2"].Value.ToString();
                        dataGridView.Rows[e.RowIndex].Cells["Colunm1"].Selected = true;
                    }
                }
         }
为什么dataGridView.Rows[e.RowIndex].Cells["Column1"].Value = dataGridView.Rows[e.RowIndex].Cells["Column2"].Value.ToString();
执行后Cells["Column1"]没有获取到值呢,该如何修改