Chart creating dynamically. in .net, c#

Question

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();
    }
  }
}

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.

I like this github.com/beto-rodriguez/Live-Charts

bto.rdz
– bto.rdz

2015-11-29 18:42:40 +00:00
Commented Nov 29, 2015 at 18:42 — bto.rdz
– bto.rdz, Commented Nov 29, 2015 at 18:42

user · Accepted Answer · 2012-09-04 03:33:13Z

Yep.

// FakeChart.cs
// ------------------------------------------------------------------
//
// A Winforms app that produces a contrived chart using
// DataVisualization (MSChart).  Requires .net 4.0.
//
// Author: Dino
//
// ------------------------------------------------------------------
//
// compile: \net4.0\csc.exe /t:winexe /debug+ /R:\net4.0\System.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());
        }
    }
}

UI:

enter image description here

Thank you! I'm trying to find out, witch was to problem with my code. Is great that finally i have a working example. And google, finds, basically nothing, like this.
For anyone searching on this, you have to replace components inside of program.cs and form1.designer.cs as this code isn't meant to be incorporated within another application as a default. Next I will try and figure that part out.
That's an ugly double vertical line at the vertical axis. I suggest setting chart.ChartAreas[0].AxisX.IsMarginVisible = false

Emmie Lewis-Briggman · Accepted Answer · 2012-05-16 20:25:43Z

7

Microsoft has a nice chart control. Download it here. Great video on this here. Example code is here. Happy coding!

answered May 16, 2012 at 20:25

Emmie Lewis-Briggman

8554 silver badges12 bronze badges

1 Comment

user585968 Over a year ago

A good link. Note it is for .NET 3.5. .NET 4+ has the new Chart class in System.Windows.Forms.DataVisualization.Charting.

eldarerathis · Accepted Answer · 2013-12-16 17:51:32Z

6

Add a reference to System.Windows.Form.DataVisualization, then add the appropriate using statement:

using System.Windows.Forms.DataVisualization.Charting;

private void CreateChart()
{
    var series = new Series("Finance");

    // Frist parameter is X-Axis and Second is Collection of Y- Axis
    series.Points.DataBindXY(new[] { 2001, 2002, 2003, 2004 }, new[] { 100, 200, 90, 150 });
    chart1.Series.Add(series);

}

edited Dec 16, 2013 at 17:51

eldarerathis

36.4k10 gold badges93 silver badges94 bronze badges

answered Dec 16, 2013 at 17:24

Rajnikant

2,2341 gold badge25 silver badges25 bronze badges

Comments

Sanoob · Accepted Answer · 2014-04-06 16:47:00Z

6

Try to include these lines on your code, after mych.Visible = true;:

ChartArea chA = new ChartArea();
mych.ChartAreas.Add(chA);

edited Apr 6, 2014 at 16:47

Sanoob

2,4724 gold badges32 silver badges38 bronze badges

answered Apr 6, 2014 at 16:19

user3503997

611 silver badge1 bronze badge

2 Comments

Edward Zhang Over a year ago

This should be the accepted answer: the currently accepted one was actually using the 'manually drag and drop' way, not a real 'dynamicly created chart' as required by the question.

amr osama Over a year ago

This was the answer for me too

Andrew Barefoot · Accepted Answer · 2012-05-16 18:16:39Z

0

You need to attach the Form1_Load handler to the Load event:

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();
            Load += Form1_Load;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            Random rnd = new Random();
            Chart mych = new Chart();
            mych.Height = 100;
            mych.Width = 100;
            mych.BackColor = SystemColors.Highlight;
            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);
            }

            Controls.Add(mych);
        }
    }
}

answered May 16, 2012 at 18:16

Andrew Barefoot

111 bronze badge

2 Comments

KilyenOrs Over a year ago

probably i'm the nob one, but only blank chart appears without data (with the exact code you wrote) It's possible that this is one of my mistakes, but not the only one for sure. Thanks for helping anyway.

Dejan Janjušević Over a year ago

@KilyenOrs mych.Invalidate() is the key.

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