使用文本框键向上键和向下键在datagridview中移动

private void dataGridView1_KeyPress(object sender, KeyPressEventArgs e)
{
    if (e.KeyChar == (char)Keys.Up)
    {
        int currentRow = dataGridView1.CurrentCell.RowIndex;
        int currentColumn = dataGridView1.CurrentCell.ColumnIndex;
        
        if (currentRow > 0)
        {
            dataGridView1.CurrentCell = dataGridView1.Rows[currentRow - 1].Cells[currentColumn];
        }
    }
    else if (e.KeyChar == (char)Keys.Down)
    {
        int currentRow = dataGridView1.CurrentCell.RowIndex;
        int currentColumn = dataGridView1.CurrentCell.ColumnIndex;
        
        if (currentRow < dataGridView1.Rows.Count - 1)
        {
            dataGridView1.CurrentCell = dataGridView1.Rows[currentRow + 1].Cells[currentColumn];
        }
    }
}