ChartDirector 6.2 (.NET Edition)

Simple Pie Chart




This example demonstrates the basic steps in creating pie charts.

Source Code Listing

[Windows Forms - C# version] NetWinCharts\CSharpWinCharts\simplepie.cs
using System;
using ChartDirector;

namespace CSharpChartExplorer
{
    public class simplepie : DemoModule
    {
        //Name of demo module
        public string getName() { return "Simple Pie Chart"; }

        //Number of charts produced in this demo module
        public int getNoOfCharts() { return 1; }

        //Main code for creating chart.
        //Note: the argument chartIndex is unused because this demo only has 1 chart.
        public void createChart(WinChartViewer viewer, int chartIndex)
        {
            // The data for the pie chart
            double[] data = {25, 18, 15, 12, 8, 30, 35};

            // The labels for the pie chart
            string[] labels = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities",
                "Production"};

            // Create a PieChart object of size 360 x 300 pixels
            PieChart c = new PieChart(360, 300);

            // Set the center of the pie at (180, 140) and the radius to 100 pixels
            c.setPieSize(180, 140, 100);

            // Set the pie data and the pie labels
            c.setData(data, labels);

            // Output the chart
            viewer.Chart = c;

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='{label}: US${value}K ({percent}%)'");
        }
    }
}

[Windows Forms - VB Version] NetWinCharts\VBNetWinCharts\simplepie.vb
Imports System
Imports Microsoft.VisualBasic
Imports ChartDirector

Public Class simplepie
    Implements DemoModule

    'Name of demo module
    Public Function getName() As String Implements DemoModule.getName
        Return "Simple Pie Chart"
    End Function

    'Number of charts produced in this demo module
    Public Function getNoOfCharts() As Integer Implements DemoModule.getNoOfCharts
        Return 1
    End Function

    'Main code for creating chart.
    'Note: the argument chartIndex is unused because this demo only has 1 chart.
    Public Sub createChart(viewer As WinChartViewer, chartIndex As Integer) _
        Implements DemoModule.createChart

        ' The data for the pie chart
        Dim data() As Double = {25, 18, 15, 12, 8, 30, 35}

        ' The labels for the pie chart
        Dim labels() As String = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", _
            "Facilities", "Production"}

        ' Create a PieChart object of size 360 x 300 pixels
        Dim c As PieChart = New PieChart(360, 300)

        ' Set the center of the pie at (180, 140) and the radius to 100 pixels
        c.setPieSize(180, 140, 100)

        ' Set the pie data and the pie labels
        c.setData(data, labels)

        ' Output the chart
        viewer.Chart = c

        'include tool tip for the chart
        viewer.ImageMap = c.getHTMLImageMap("clickable", "", _
            "title='{label}: US${value}K ({percent}%)'")

    End Sub

End Class

[WPF - C#] NetWPFCharts\simplepie.cs
using System;
using ChartDirector;

namespace CSharpWPFDemo
{
    public class simplepie : DemoModule
    {
        //Name of demo module
        public string getName() { return "Simple Pie Chart"; }

        //Number of charts produced in this demo module
        public int getNoOfCharts() { return 1; }

        //Main code for creating chart.
        //Note: the argument chartIndex is unused because this demo only has 1 chart.
        public void createChart(WPFChartViewer viewer, int chartIndex)
        {
            // The data for the pie chart
            double[] data = {25, 18, 15, 12, 8, 30, 35};

            // The labels for the pie chart
            string[] labels = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities",
                "Production"};

            // Create a PieChart object of size 360 x 300 pixels
            PieChart c = new PieChart(360, 300);

            // Set the center of the pie at (180, 140) and the radius to 100 pixels
            c.setPieSize(180, 140, 100);

            // Set the pie data and the pie labels
            c.setData(data, labels);

            // Output the chart
            viewer.Chart = c;

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='{label}: US${value}K ({percent}%)'");
        }
    }
}

[ASP.NET Web Forms - C# version] NetWebCharts\CSharpASP\simplepie.aspx
(Click here on how to convert this code to code-behind style.)
<%@ Page Language="C#" Debug="true" %>
<%@ Import Namespace="ChartDirector" %>
<%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %>

<!DOCTYPE html>

<script runat="server">

//
// Page Load event handler
//
protected void Page_Load(object sender, EventArgs e)
{
    // The data for the pie chart
    double[] data = {25, 18, 15, 12, 8, 30, 35};

    // The labels for the pie chart
    string[] labels = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities",
        "Production"};

    // Create a PieChart object of size 360 x 300 pixels
    PieChart c = new PieChart(360, 300);

    // Set the center of the pie at (180, 140) and the radius to 100 pixels
    c.setPieSize(180, 140, 100);

    // Set the pie data and the pie labels
    c.setData(data, labels);

    // Output the chart
    WebChartViewer1.Image = c.makeWebImage(Chart.PNG);

    // Include tool tip for the chart
    WebChartViewer1.ImageMap = c.getHTMLImageMap("", "", "title='{label}: US${value}K ({percent}%)'"
        );
}

</script>

<html>
<body>
    <chart:WebChartViewer id="WebChartViewer1" runat="server" />
</body>
</html>

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\simplepie.aspx
(Click here on how to convert this code to code-behind style.)
<%@ Page Language="VB" Debug="true" %>
<%@ Import Namespace="ChartDirector" %>
<%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %>

<!DOCTYPE html>

<script runat="server">

'
' Page Load event handler
'
Protected Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)

    ' The data for the pie chart
    Dim data() As Double = {25, 18, 15, 12, 8, 30, 35}

    ' The labels for the pie chart
    Dim labels() As String = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities", _
        "Production"}

    ' Create a PieChart object of size 360 x 300 pixels
    Dim c As PieChart = New PieChart(360, 300)

    ' Set the center of the pie at (180, 140) and the radius to 100 pixels
    c.setPieSize(180, 140, 100)

    ' Set the pie data and the pie labels
    c.setData(data, labels)

    ' Output the chart
    WebChartViewer1.Image = c.makeWebImage(Chart.PNG)

    ' Include tool tip for the chart
    WebChartViewer1.ImageMap = c.getHTMLImageMap("", "", _
        "title='{label}: US${value}K ({percent}%)'")

End Sub

</script>

<html>
<body>
    <chart:WebChartViewer id="WebChartViewer1" runat="server" />
</body>
</html>

[ASP.NET MVC - Controller] NetMvcCharts\Controllers\SimplepieController.cs
using System;
using System.Web.Mvc;
using ChartDirector;

namespace NetMvcCharts.Controllers
{
    public class SimplepieController : Controller
    {
        //
        // Default Action
        //
        public ActionResult Index()
        {
            ViewBag.Title = "Simple Pie Chart";
            createChart(ViewBag.Viewer = new RazorChartViewer(HttpContext, "chart1"));
            return View("~/Views/Shared/ChartView.cshtml");
        }

        //
        // Create chart
        //
        private void createChart(RazorChartViewer viewer)
        {
            // The data for the pie chart
            double[] data = {25, 18, 15, 12, 8, 30, 35};

            // The labels for the pie chart
            string[] labels = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities",
                "Production"};

            // Create a PieChart object of size 360 x 300 pixels
            PieChart c = new PieChart(360, 300);

            // Set the center of the pie at (180, 140) and the radius to 100 pixels
            c.setPieSize(180, 140, 100);

            // Set the pie data and the pie labels
            c.setData(data, labels);

            // Output the chart
            viewer.Image = c.makeWebImage(Chart.PNG);

            // Include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("", "", "title='{label}: US${value}K ({percent}%)'");
        }
    }
}

[ASP.NET MVC - View] NetMvcCharts\Views\Shared\ChartView.cshtml
@{ Layout = null; }

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>@ViewBag.Title</title>
</head>
<body style="margin:5px 0px 0px 5px">
    <div style="font:bold 18pt verdana;">
        @ViewBag.Title
    </div>
    <hr style="border:solid 1px #000080" />
    <div>
        @{
            if (ViewBag.Viewer is Array)
            {
                // Display multiple charts
                for (int i = 0; i < ViewBag.Viewer.Length; ++i)
                {
                    @:@Html.Raw(ViewBag.Viewer[i].RenderHTML())
                }
            }
            else
            {
                // Display one chart only
                @:@Html.Raw(ViewBag.Viewer.RenderHTML())
            }
        }
    </div>
</body>
</html>