DataGridView中,用方向键移动单元格时,单元格获得光标后就进入编辑状态而不是选择状态?怎么实现

        private void dataGridView1_KeyUp(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Left || e.KeyCode == Keys.Right || e.KeyCode == Keys.Up || e.KeyCode == Keys.Down)
            {
                SendKeys.Send("{F2}");
            }
        }