实现动态数据图表

创建步骤

创建用户控件窗体
添加一个 System.Windows.Forms.DataVisualization.Charting.Chart 以呈现图表
添加一个 System.Windows.Forms.Timer 以构造随时间变化的随机数据（动态演示，数据刷新频率取决于此timer控件通知频率）

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;

namespace DynamicChart
{
    public partial class DChart : UserControl
    {
        static readonly int xPointNum = 25;
        Queue<int> dataQueue = new Queue<int>();
        List<int> chartXList = new List<int>();
        public DChart()
        {
            InitializeComponent();

            this.Location = new Point(0, 0);

            dataQueue.Clear();
            for (int i = 0; i < xPointNum; i++)
            {
                dataQueue.Enqueue(0);
                chartXList.Add(i+1);
            }

            chart1.Legends[0].Enabled = false;
            chart1.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Spline;
        }

        private void DChart_Resize(object sender, EventArgs e)
        {
           chart1.Size = this.Size;
        }

        private void timerClock_Tick(object sender, EventArgs e)
        {
            if (DesignMode) return;

            int number = new Random().Next(0,50);

            if (dataQueue.Count >= xPointNum) dataQueue.Dequeue();

            dataQueue.Enqueue(number);
            chart1.Series[0].Points.DataBindXY(chartXList, dataQueue);
        }

        private void DChart_Load(object sender, EventArgs e)
        {
            if (DesignMode)
            {
                timerClock.Enabled = false;
                Random random = new Random();
                for (int i = 0; i < xPointNum; i++)
                {
                    if (dataQueue.Count >= xPointNum) dataQueue.Dequeue();
                    dataQueue.Enqueue(random.Next(0, 100));
                }
                chart1.Series[0].Points.DataBindXY(chartXList, dataQueue);
            }
        }
    }
}