显示来自datagridview和sql语句的数据，什么是正确的或更有效的

Question

所以我根据点击的图像来显示访问数据库中的数据。我已经提出了两种不同的方法来做到这一点，我很好奇哪种方式更有效率。

以下是我目前正在做的两种不同方式。如果你能推荐一个更好的解决方案，我很乐意听到它。

解决方案1使用绑定到访问数据库的datagridview。

private void risk1_Click(object sender, EventArgs e)
{
    pointid.Text = "7";
    int numval = Convert.ToInt32(pointid.Text);
    //To get the correct row
    int id = numval - 1;
    //Point Id of the clicked point
    textBox1.Text = id.ToString();
    pointlbl.Text = dataGridView1.Rows[id].Cells[2].Value.ToString();
    //Cat ID of the clicked point
    catId.Text = dataGridView1.Rows[id].Cells[5].Value.ToString();

    webBrowser1.DocumentText = dataGridView1.Rows[id].Cells[4].Value.ToString();
    webBrowser1.Document.ExecCommand("SelectAll", false, null);
    webBrowser1.Document.ExecCommand("Copy", false, null);
    using (RichTextBox box = new RichTextBox())
    {
        box.Paste();
        box.Rtf = box.Rtf.Replace("<>", "");
        this.htmlRichTextBox1.Rtf = box.Rtf;
    }

    pointPanel.Visible = true;
    homePanel.Visible = false;
}

解决方案2使用select语句

private void risk2_Click(object sender, EventArgs e)
{
    pointid.Text = "2";
    int numval = Convert.ToInt32(pointid.Text);

    //Setup Connection to access db
    string cnString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\Adam\\Desktop\\braithwaite.mdb";

    //declare Connection, command and other related objects
    OleDbConnection conGet = new OleDbConnection(cnString);
    OleDbCommand cmdGet = new OleDbCommand();

    //try
    //{
    //open connection
    conGet.Open();
    //String correctAnswer;

    cmdGet.CommandType = CommandType.Text;
    cmdGet.Connection = conGet;

    cmdGet.CommandText = "SELECT * FROM Points WHERE point_id = "+numval+"";

    OleDbDataReader reader = cmdGet.ExecuteReader();

    reader.Read();
    pointlbl.Text = reader["point"].ToString();
    webBrowser1.DocumentText = reader["Description"].ToString();
    conGet.Close();
    pointPanel.Visible = true;
    homePanel.Visible = false;
}