using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;

namespace TestIC00
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        private void Form2_Load(object sender, EventArgs e)
        {

        }
        public int index = 0;
        public int x = 0;
        public bool flag = false;
        private void button1_Click(object sender, EventArgs e)
        {
            timer1.Enabled = !timer1.Enabled;
        }
        private void timer1_Tick(object sender, EventArgs e)
        {
            Random random = new Random();
            this.chart1.ChartAreas[0].AxisX.MajorGrid.Interval = 1;//網(wǎng)格間隔
            this.chart1.ChartAreas[0].AxisX.MinorGrid.Interval = 1;
            this.chart1.ChartAreas[0].AxisY.MajorGrid.Interval = 1;//網(wǎng)格間隔
            this.chart1.ChartAreas[0].AxisY.MinorGrid.Interval = 1;
            this.chart1.ChartAreas[0].AxisX.LabelStyle.Interval = 1;//設(shè)置X軸的值的間隔大小
            this.chart1.ChartAreas[0].AxisX.MajorGrid.LineColor = Color.Gray;//設(shè)置X軸網(wǎng)格線顏色
            this.chart1.ChartAreas[0].AxisY.MajorGrid.LineColor = Color.Gray;//設(shè)置Y軸網(wǎng)格線顏色
            chart1.ChartAreas[0].AxisX.ScrollBar.Enabled = true;//啟動(dòng)滾動(dòng)條
            this.chart1.ChartAreas[0].AxisY.LabelStyle.Enabled = false;//使Y軸的刻度隱藏
            chart1.ChartAreas[0].AxisX.ScaleView.Scroll(System.Windows.Forms.DataVisualization.Charting.ScrollType.Last);//啟用視圖實(shí)現(xiàn)數(shù)據(jù)滾動(dòng)
            int value = random.Next(0, 20);//產(chǎn)生隨機(jī)數(shù)進(jìn)行賦值
            chart1.Series[0].Points.AddXY(x,value);//對(duì)折線圖添加數(shù)據(jù)
            x++;
            if (flag)//判斷標(biāo)記，如果是true表示只標(biāo)記最新，需要去掉前面的一個(gè)值
            {
                this.chart1.Series[0].Points[index].MarkerStyle = MarkerStyle.Circle;//設(shè)置標(biāo)記的形狀為圓形
                this.chart1.Series[0].Points[index].MarkerColor = Color.Red;//形狀顏色設(shè)置
                this.chart1.Series[0].Points[index].MarkerBorderWidth = 3;//形狀大小設(shè)置
                this.chart1.Series[0].Points[index].MarkerSize = 10;//設(shè)置我們展示標(biāo)記的大小
                this.chart1.Series[0].Points[index].Label = "功能：" + this.chart1.Series[0].Name + "\r\n" + "值：" + value.ToString();//對(duì)標(biāo)記展示的值
                this.chart1.Series[0].Points[index].IsValueShownAsLabel = true;//展示標(biāo)記
                this.chart1.Series[0].Points[index - 1].MarkerBorderWidth = 0;//改前一個(gè)標(biāo)記的大小
                this.chart1.Series[0].Points[index - 1].MarkerSize = 0;//形狀大小
                this.chart1.Series[0].Points[index - 1].Label = "";//展示數(shù)據(jù)
                this.chart1.Series[0].Points[index - 1].IsValueShownAsLabel = false;//不展示
            }
            else//對(duì)數(shù)據(jù)一直標(biāo)記
            {
                this.chart1.Series[0].Points[index].MarkerStyle = MarkerStyle.Circle;
                this.chart1.Series[0].Points[index].MarkerColor = Color.Red;
                this.chart1.Series[0].Points[index].MarkerBorderWidth = 3;
                this.chart1.Series[0].Points[index].MarkerSize = 10;
                this.chart1.Series[0].Points[index].Label = "功能：" + this.chart1.Series[0].Name + "\r\n" + "值：" + value.ToString();
                this.chart1.Series[0].Points[index].IsValueShownAsLabel = true;
            }
            //也可以加一種狀態(tài)是什么也不標(biāo)記，你們自己對(duì)那個(gè)狀態(tài)值的處理就可以啦
            index++;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            flag = !flag;
        }

        private void chart1_MouseClick(object sender, MouseEventArgs e)
        {
            HitTestResult mytestresult = new HitTestResult();//它表示命中測(cè)試的返回值
            mytestresult = chart1.HitTest(e.X, e.Y);//獲取我們Chart控件的折線圖在這個(gè)坐標(biāo)的值
            if (e.Button == MouseButtons.Left)//判斷是否是鼠標(biāo)左鍵點(diǎn)擊
            {
                if (mytestresult.ChartElementType == ChartElementType.DataPoint)//判斷我們點(diǎn)擊這個(gè)返回集是否是chart的數(shù)據(jù)點(diǎn)的類型
                {
                    toolTip1.AutoPopDelay = 5000;//表示tooltip在這個(gè)控件中保留展示的時(shí)間
                    toolTip1.InitialDelay = 1000;//表示鼠標(biāo)指針必須在這里靜止的時(shí)間
                    toolTip1.ReshowDelay = 500;//可以縮短或延長(zhǎng)在顯示上一個(gè)工具提示窗口后顯示工具提示窗口之前等待的時(shí)間tooltip
                    toolTip1.ShowAlways = true;//獲取或設(shè)置一個(gè)值，該值指示是否顯示工具提示窗口，甚至是在其父控件不活動(dòng)的時(shí)候。

                    try
                    {
                        toolTip1.SetToolTip(chart1, "名稱：" + mytestresult.Series.Name + "\r\n" +"值："+chart1.Series[0].Points[mytestresult.PointIndex]);//設(shè)置ToolTip展示的值的內(nèi)容，mytestresult.Series.Name表示折線的名字，chart1.Series[0].Points[mytestresult.PointIndex]表示chart圖表中的第0（從0開(kāi)始也就是第一條）條折線的數(shù)據(jù)點(diǎn)的第多少個(gè)，
//也可以設(shè)置chart1.Series[0].Points[mytestresult.PointIndex].XValue;這個(gè)代表你點(diǎn)擊這個(gè)點(diǎn)的x軸的值，chart1.Series[0].Points[mytestresult.PointIndex].YValues[0];這個(gè)代表你點(diǎn)擊的點(diǎn)Y軸的值
                   
                    }
                    catch (Exception)
                    {

                    }
                }
            }
        }
    }
}