动态创建图表.在 .net 中，C# [英] Chart creating dynamically. in .net, c#

问题描述

有人有在 .NET 中使用图表的经验吗?特别是我想以编程方式创建它们.

Does anybody have some experience working with charts in .NET? Specially I want to create them programmatically.

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.Windows.Forms.DataVisualization.Charting;
using System.Diagnostics;

namespace WindowsFormsApplication6
{
  public partial class Form1 : Form
  {
    public Form1()
    {
        InitializeComponent();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        Random rnd = new Random();
        Chart mych = new Chart();
        mych.Series.Add("duck");

        mych.Series["duck"].SetDefault(true);
        mych.Series["duck"].Enabled = true;
        mych.Visible = true;

        for (int q = 0; q < 10; q++)
        {
            int first = rnd.Next(0,10);
            int second = rnd.Next(0,10);
            mych.Series["duck"].Points.AddXY(first, second);
            Debug.WriteLine(first + "  " + second);
        }
        mych.Show();
        Controls.Add(mych);
        mych.Show();
    }
  }
}

我正在尝试使用 .NET(.net 4，Visual Studio 2010) chart，但是随机生成的数据集没有出现.图表保持空白.我搜索了一些例子，只找到了像 这个 ，并且，是的，使用手动拖动"方法它可以工作.我不知道为什么我以编程方式生成的数据没有出现.

I'm trying to use .NET (.net 4, Visual Studio 2010) chart, but the random generated data set, doesn't appear. The chart remained blank. I searched for examples and only found ones like this , and, yes with manual "drag" method it works. I have no idea why the data I programmatically generate doesn't appear.

推荐答案

是的.

// FakeChart.cs
// ------------------------------------------------------------------
//
// A Winforms app that produces a contrived chart using
// DataVisualization (MSChart).  Requires .net 4.0.
//
// Author: Dino
//
// ------------------------------------------------------------------
//
// compile: 
et4.0csc.exe /t:winexe /debug+ /R:
et4.0System.Windows.Forms.DataVisualization.dll FakeChart.cs
//

using System;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;


namespace Dino.Tools.WebMonitor
{
    public class FakeChartForm1 : Form
    {
        private System.ComponentModel.IContainer components = null;
        System.Windows.Forms.DataVisualization.Charting.Chart chart1;

        public FakeChartForm1 ()
        {
            InitializeComponent();
        }

        private double f(int i)
        {
            var f1 = 59894 - (8128 * i) + (262 * i * i) - (1.6 * i * i * i);
            return f1;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            chart1.Series.Clear();
            var series1 = new System.Windows.Forms.DataVisualization.Charting.Series
            {
                Name = "Series1",
                Color = System.Drawing.Color.Green,
                IsVisibleInLegend = false,
                IsXValueIndexed = true,
                ChartType = SeriesChartType.Line
            };

            this.chart1.Series.Add(series1);

            for (int i=0; i < 100; i++)
            {
                series1.Points.AddXY(i, f(i));
            }
            chart1.Invalidate();
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            System.Windows.Forms.DataVisualization.Charting.ChartArea chartArea1 = new System.Windows.Forms.DataVisualization.Charting.ChartArea();
            System.Windows.Forms.DataVisualization.Charting.Legend legend1 = new System.Windows.Forms.DataVisualization.Charting.Legend();
            this.chart1 = new System.Windows.Forms.DataVisualization.Charting.Chart();
            ((System.ComponentModel.ISupportInitialize)(this.chart1)).BeginInit();
            this.SuspendLayout();
            //
            // chart1
            //
            chartArea1.Name = "ChartArea1";
            this.chart1.ChartAreas.Add(chartArea1);
            this.chart1.Dock = System.Windows.Forms.DockStyle.Fill;
            legend1.Name = "Legend1";
            this.chart1.Legends.Add(legend1);
            this.chart1.Location = new System.Drawing.Point(0, 50);
            this.chart1.Name = "chart1";
            // this.chart1.Size = new System.Drawing.Size(284, 212);
            this.chart1.TabIndex = 0;
            this.chart1.Text = "chart1";
            //
            // Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(284, 262);
            this.Controls.Add(this.chart1);
            this.Name = "Form1";
            this.Text = "FakeChart";
            this.Load += new System.EventHandler(this.Form1_Load);
            ((System.ComponentModel.ISupportInitialize)(this.chart1)).EndInit();
            this.ResumeLayout(false);
        }

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new FakeChartForm1());
        }
    }
}

界面:

这篇关于动态创建图表.在 .net 中，C#的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！