在讀取了SQL Server數據之后，并通過控件Teechart顯示出數據曲線，在這里貼出這種方式的源碼，大家一起探討一下：

源碼如下：

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Diagnostics;

namespace tchart_SQL
{
    public partial class Form1 : Form
    {
        private string connString = @"server = localhost;integrated security = true; database = student";
        string s = "select studentID,[英語],[數學],[語文],[總分] from score order by studentID Desc";//[英語],[數學],[語文],[總分]
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            Stopwatch sw = new Stopwatch();//測試性能
            sw.Start();
            tChart1.Aspect.View3D = false;
            SqlConnection conn = new SqlConnection(connString);
            conn.Open();
            SqlCommand cmd2 = new SqlCommand(s, conn);
            SqlDataReader aReader = cmd2.ExecuteReader();
            line1.Title = "英語";
            line2.Title = "數學";
            line3.Title = "語文";
            line4.Title = "總分";

            while (aReader.Read())
            {
                line1.Add(Convert.ToInt32(aReader[1]),aReader[0].ToString(),Color.Red);
                line2.Add(Convert.ToInt32(aReader[2]),aReader[0].ToString(),Color.Black);
                line3.Add(Convert.ToInt32(aReader[3]),aReader[0].ToString(),Color.Blue);
                line4.Add(Convert.ToInt32(aReader[4]),aReader[0].ToString(),Color.DarkRed);
            }
            aReader.Close();
            conn.Close();
            sw.Stop();
            MessageBox.Show(sw.ElapsedMilliseconds.ToString());
        }
    }
}<DIV> <IMG alt="" src="//hi.csdn.net/attachment/201108/4/0_1312421740B1HB.gif"></DIV>