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;//啟動滾動條
            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
            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，你們自己對那個狀態(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在這個控件中保留展示的時間
                    toolTip1.InitialDelay = 1000;//表示鼠標(biāo)指針必須在這里靜止的時間
                    toolTip1.ReshowDelay = 500;//可以縮短或延長在顯示上一個工具提示窗口后顯示工具提示窗口之前等待的時間tooltip
                    toolTip1.ShowAlways = true;//獲取或設(shè)置一個值，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的時候。

                    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開始也就是第一條）條折線的數(shù)據(jù)點(diǎn)的第多少個，
//也可以設(shè)置chart1.Series[0].Points[mytestresult.PointIndex].XValue;這個代表你點(diǎn)擊這個點(diǎn)的x軸的值，chart1.Series[0].Points[mytestresult.PointIndex].YValues[0];這個代表你點(diǎn)擊的點(diǎn)Y軸的值
                   
                    }
                    catch (Exception)
                    {

                    }
                }
            }
        }
    }
}