Win (Windows App) เราจะทำให้เลื่อนขึ้นเลื่อนลงของข้อมูลใน DataGridView ยังไงครับ

private void buttonUp_Click(object sender, EventArgs e)
{
   int currentRowIndex = dataGridView1.CurrentRow.Index;

   if (currentRowIndex > 0)
   {
      string tempValue = (string)dataGridView1.Rows[currentRowIndex - 1].Cells[0].Value;
      dataGridView1.Rows[currentRowIndex - 1].Cells[0].Value = dataGridView1.Rows[currentRowIndex ].Cells[0].Value
      dataGridView1.Rows[currentRowIndex ].Cells[0].Value = tempValue;
   }
}

private void buttonDown_Click(object sender, EventArgs e)
{
   int currentRowIndex = dataGridView1.CurrentRow.Index;

   if (currentRowIndex < dataGridView1.Rows.Count)
   {
      string tempValue = (string)dataGridView1.Rows[currentRowIndex + 1].Cells[0].Value;
      dataGridView1.Rows[currentRowIndex + 1].Cells[0].Value = dataGridView1.Rows[currentRowIndex ].Cells[0].Value
      dataGridView1.Rows[currentRowIndex ].Cells[0].Value = tempValue;
   }
}

DataSet ds = new DataSet();
                ds.Tables.Add();
                ds.Tables[0].Columns.Add("โรงเรียน");
                ds.Tables[0].Columns.Add("ระดับชั้น");
                ds.Tables[0].Columns.Add("ชื่อหมวดหมู่");
                ds.Tables[0].Columns.Add("เพศ");
                ds.Tables[0].Columns.Add("ID");
                for (int i = 0; i < this._categories.Count; i++)
                {
                    string gender = "";
                    switch (this._categories[i].Gender)
                    {
                        case Gender.NONE:
                            gender = "ไม่มี";
                            break;
                        case Gender.MALE:
                            gender = "ชาย";
                            break;
                        case Gender.FEMALE:
                            gender = "หญิง";
                            break;
                    }
                    ds.Tables[0].Rows.Add(this._categories[i].School.Name, this._categories[i].School.Grade.Name, this._categories[i].Name, gender, this._categories[i].Id);
                }
                dataGridView1.DataSource = ds.Tables[0];
                dataGridView1.Columns["ID"].Visible = false;