C# Chart 简单使用教程

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2023-06-20
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标签   C#

Chart控件可以用来绘制波形图、柱状图、饼图、折线图等，用来进行数据表现是很不错的，现在简单说一下这个控件的使用方法

XAML:

<Window x:Class="WpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx//xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx//xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/"
        xmlns:local="clr-namespace:WpfApp"
        xmlns:wfi="clr-namespace:System.Windows.Forms.Integration;assembly=WindowsFormsIntegration"
        xmlns:wf="clr-namespace:System.Windows.Forms;assembly=System.Windows.Forms"
        xmlns:Chr="clr-namespace:System.Windows.Forms.DataVisualization.Charting;assembly=System.Windows.Forms.DataVisualization"
        mc:Ignorable="d"   WindowStartupLocation="CenterScreen"
        Title="MainWindow" Height="" Width="600">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition Height="" />
        </Grid.RowDefinitions>
        <WindowsFormsHost x:Name="WFHost_HistoryFlow" Margin="" Background="Azure">
            <Chr:Chart x:Name="chartTest"  BackColor="WhiteSmoke"/>
        </WindowsFormsHost>
        
        <Border Grid.Row="" Background="LightBlue"/>
        <StackPanel Margin="" Grid.Row="1" HorizontalAlignment="Center" Orientation="Horizontal" >
            <Button x:Name="btn_Start" Click="btn_Start_Click" Content="开始" Height="" Width="100"/>
            <Button x:Name="btn_Stop" Click="btn_Stop_Click" Content="停止" Height="" Width="100" Margin="10 0 0 0"/>
            <Button x:Name="btn_ChangeEnable" Click="btn_ChangeEnable_Click" Content="切换显示隐藏状态" Height="" Width="100" Margin="10 0 0 0"/>
        </StackPanel>
 
    </Grid>
</Window>

C# behind code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;
using System.Data;
 
 
// https://www.cnblogs.com/stackmiao/p/.html // 参考
 
namespace WpfApp
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            Constructor();
            SetChartArea();
            SetSeries();
            SetTitle();
            SetLegend();
            SetStripLine();
        }
 
        private ChartArea m_ChartArea;
        private Series m_Series;
        private Series m_Series_;
        private Legend m_Legend;
        private Title m_Title;
 
        private Random m_Random = new Random((int)DateTime.Now.Ticks);
        private Timer m_Timer = new Timer()
        {
            Interval =,
            Enabled = false
        };
 
        private void Constructor()
        {
            // Chart 控件可以包含多个 ChartArea
            // ChartArea 里可以含多条 Series
 
            m_ChartArea = new ChartArea();
            m_Series = new Series("曲线");
            m_Series_ = new Series("曲线2");
            m_Legend = new Legend("No.");
            m_Title = new System.Windows.Forms.DataVisualization.Charting.Title(
                "保压值", System.Windows.Forms.DataVisualization.Charting.Docking.Top,
                new System.Drawing.Font("宋体",F), System.Drawing.Color.Black);
            chartTest.ChartAreas.Add(m_ChartArea);
            chartTest.Series.Add(m_Series);
            chartTest.Legends.Add(m_Legend);
            chartTest.Titles.Add(m_Title);
 
            m_Timer.Tick += M_Timer_Tick;
            m_Timer.Tick += M_Timer_Tick_;
        }
 
        private void M_Timer_Tick(object sender, EventArgs e)
        {
            int yVal = m_Random.Next(, 70);
 
            if (m_Series.Points.Count <)
            {
                m_Series.Points[m_Series.Points.Count -].Label = " ";
                m_Series.Points.Add(yVal);
                m_Series.Points[m_Series.Points.Count -].Label = yVal.ToString() + "N";
                return;
            }
 
            m_Series.Points.RemoveAt();
            m_Series.Points[m_Series.Points.Count -].Label = " ";
            m_Series.Points.Add(yVal);
            m_Series.Points[m_Series.Points.Count -].Label = yVal.ToString() + "N";
        }
 
        private void M_Timer_Tick_(object sender, EventArgs e)
        {
            int yVal = m_Random.Next(, 70);
 
            if (m_Series_.Points.Count < 20)
            {
                m_Series_.Points[m_Series_2.Points.Count - 1].Label = " ";
                m_Series_.Points.Add(yVal);
                m_Series_.Points[m_Series_2.Points.Count - 1].Label = yVal.ToString() + "N";
                return;
            }
 
            m_Series_.Points.RemoveAt(0);
            m_Series_.Points[m_Series_2.Points.Count - 1].Label = " ";
            m_Series_.Points.Add(yVal);
            m_Series_.Points[m_Series_2.Points.Count - 1].Label = yVal.ToString() + "N";
        }
 
        private void SetChartArea()
        {
            m_ChartArea.Name = "TestChartArea";
            m_ChartArea.AxisX.Minimum =;
            m_ChartArea.AxisX.Maximum =;
            m_ChartArea.AxisY.Minimum =d;
            m_ChartArea.AxisY.Maximum =d;
            m_ChartArea.AxisX.IsStartedFromZero = true; // X 轴起点从开始 没摸索出来有啥用
            m_ChartArea.AxisX.IntervalOffset =;
            m_ChartArea.AxisX.Interval =;
            m_ChartArea.AxisX.IsMarginVisible = false;
 
            m_ChartArea.AxisX.MajorGrid.Enabled = true; //X轴上网格
            m_ChartArea.AxisY.MajorGrid.Enabled = true; //Y轴上网格
            m_ChartArea.AxisX.Title = "X轴";
            m_ChartArea.AxisY.Title = "Y轴";
            m_ChartArea.AxisX.TitleAlignment = System.Drawing.StringAlignment.Far;
            m_ChartArea.AxisY.TitleAlignment = System.Drawing.StringAlignment.Far;
        }
 
        private void SetSeries()
        {
            m_Series.ChartArea = "TestChartArea";
            m_Series.ChartType = SeriesChartType.Spline;
            m_Series.Color = System.Drawing.Color.Blue;
            m_Series.BorderWidth =;
            m_Series.MarkerColor = System.Drawing.Color.Green;
            m_Series.MarkerSize =;
            m_Series.MarkerStyle = MarkerStyle.Circle;
            m_Series.Legend = "No.";
            m_Series.LegendText = "保压压力";
 
            //series.Points.AddXY(, 1);
            m_Series.Points.AddXY("", 0); // 这样跟X标签一起添加
            m_Series.Points.AddXY("", 10);
            m_Series.Points.AddXY("", 35);
            m_Series.Points.AddXY("", 32);
            m_Series.Points.AddXY("", 79);
            m_Series.Points.AddXY("", 40);
            m_Series.Points.AddXY("", 67);
            m_Series.Points.AddXY("", 77);
            m_Series.Points.AddXY("", 48);
 
            // Label 显示最后添加的一个数据 Y 值
            m_Series.IsValueShownAsLabel = true;
            m_Series.Label = "#LABEL";
            for (int i =; i < m_Series.Points.Count; i++)
            {
                if (i < m_Series.Points.Count -)
                {
                    m_Series.Points[i].Label = " "; // 给个空白
                    continue;
                }
 
                m_Series.Points[i].Label = m_Series.Points[i].YValues[].ToString() + "N";
            }
 
 
            /***********曲线二************/
 
            m_Series_ = new Series("Series Name NO.2");
            m_Series_.ChartType = SeriesChartType.Line;
            m_Series_.MarkerColor = System.Drawing.Color.Green;
            m_Series_.MarkerSize = 5;
            m_Series_.MarkerStyle = MarkerStyle.Circle;
            chartTest.Series.Add(m_Series_);
            m_Series_.LegendText = "压力值";
            m_Series_.Points.Add(4);
            m_Series_.Points.Add(10);
            m_Series_.Points.Add(45);
            m_Series_.Points.Add(66);
            m_Series_.Points.Add(45);
            m_Series_.Points.Add(23);
            m_Series_.Points.Add(56);
        }
 
        private void SetTitle()
        {
            // 标题
            // 在 Constructor()  Add 添加了
        }
 
        private void SetLegend()
        {
            m_Legend.Docking = Docking.Top; // 位置
        }
 
        private void SetStripLine()
        {
            // 加一条线 红色警告线 
            StripLine stripline = new StripLine();
            stripline.Interval =;
            stripline.IntervalOffset =;
            stripline.StripWidth =.3;
            stripline.BackColor = System.Drawing.Color.Red;
            stripline.BorderDashStyle = ChartDashStyle.Solid;
            stripline.TextAlignment = System.Drawing.StringAlignment.Near;
            stripline.Text = "下限:";
            m_ChartArea.AxisY.StripLines.Add(stripline);
            stripline = new StripLine();
            stripline.Interval =;
            stripline.IntervalOffset =;
            stripline.StripWidth =.2;
            stripline.Text = "上限:";
            stripline.TextLineAlignment = System.Drawing.StringAlignment.Far;
            stripline.TextAlignment = System.Drawing.StringAlignment.Near;
            stripline.BackColor = System.Drawing.Color.Red;
            stripline.BorderDashStyle = ChartDashStyle.Solid;
            m_ChartArea.AxisY.StripLines.Add(stripline);
        }
 
        private void btn_Start_Click(object sender, RoutedEventArgs e)
        {
            m_Timer.Enabled = true;
        }
 
        private void btn_Stop_Click(object sender, RoutedEventArgs e)
        {
            m_Timer.Enabled = false;
        }
 
        private void btn_ChangeEnable_Click(object sender, RoutedEventArgs e)
        {
            m_Series_.Enabled = !m_Series_2.Enabled;
        }
    }
}

参考：

https://www.cnblogs.com/stackmiao/p/11463284.html

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