ChartDirector 6.2 (.NET Edition)

Stacked Bar Chart




This example demonstrates creating a stacked bar chart, completed with bar labels and legend box.

The key features demonstrated in this example are:

For bar labels, Layer.setDataLabelStyle and Layer.setAggregateLabelStyle control the styles (fonts, colors, backgrounds, etc), while Layer.setDataLabelFormat and Layer.setAggregateLabelFormat control the formats (the label text, number of decimal points, etc). You can also add custom labels to the bars using Layer.addCustomDataLabel, Layer.addCustomAggregateLabel and Layer.addCustomGroupLabel.

Source Code Listing

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

namespace CSharpChartExplorer
{
    public class stackedbar : DemoModule
    {
        //Name of demo module
        public string getName() { return "Stacked Bar 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 bar chart
            double[] data0 = {100, 115, 165, 107, 67};
            double[] data1 = {85, 106, 129, 161, 123};
            double[] data2 = {67, 87, 86, 167, 157};

            // The labels for the bar chart
            string[] labels = {"Mon", "Tue", "Wed", "Thu", "Fri"};

            // Create a XYChart object of size 600 x 360 pixels
            XYChart c = new XYChart(600, 360);

            // Set default text color to dark grey (0x333333)
            c.setColor(Chart.TextColor, 0x333333);

            // Set the plotarea at (70, 20) and of size 400 x 300 pixels, with transparent
            // background and border and light grey (0xcccccc) horizontal grid lines
            c.setPlotArea(70, 20, 400, 300, Chart.Transparent, -1, Chart.Transparent, 0xcccccc);

            // Add a legend box at (480, 20) using vertical layout and 12pt Arial font. Set
            // background and border to transparent and key icon border to the same as the fill
            // color.
            LegendBox b = c.addLegend(480, 20, true, "Arial", 12);
            b.setBackground(Chart.Transparent, Chart.Transparent);
            b.setKeyBorder(Chart.SameAsMainColor);

            // Set the x and y axis stems to transparent and the label font to 12pt Arial
            c.xAxis().setColors(Chart.Transparent);
            c.yAxis().setColors(Chart.Transparent);
            c.xAxis().setLabelStyle("Arial", 12);
            c.yAxis().setLabelStyle("Arial", 12);

            // Add a stacked bar layer
            BarLayer layer = c.addBarLayer2(Chart.Stack);

            // Add the three data sets to the bar layer
            layer.addDataSet(data0, 0xaaccee, "Server # 1");
            layer.addDataSet(data1, 0xbbdd88, "Server # 2");
            layer.addDataSet(data2, 0xeeaa66, "Server # 3");

            // Set the bar border to transparent
            layer.setBorderColor(Chart.Transparent);

            // Enable labelling for the entire bar and use 12pt Arial font
            layer.setAggregateLabelStyle("Arial", 12);

            // Enable labelling for the bar segments and use 12pt Arial font with center alignment
            layer.setDataLabelStyle("Arial", 10).setAlignment(Chart.Center);

            // For a vertical stacked bar with positive data, the first data set is at the bottom.
            // For the legend box, by default, the first entry at the top. We can reverse the legend
            // order to make the legend box consistent with the stacked bar.
            layer.setLegendOrder(Chart.ReverseLegend);

            // Set the labels on the x axis.
            c.xAxis().setLabels(labels);

            // For the automatic y-axis labels, set the minimum spacing to 40 pixels.
            c.yAxis().setTickDensity(40);

            // Add a title to the y axis using dark grey (0x555555) 14pt Arial Bold font
            c.yAxis().setTitle("Y-Axis Title Placeholder", "Arial Bold", 14, 0x555555);

            // Output the chart
            viewer.Chart = c;

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='{dataSetName} on {xLabel}: {value} MBytes/hour'");
        }
    }
}

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

Public Class stackedbar
    Implements DemoModule

    'Name of demo module
    Public Function getName() As String Implements DemoModule.getName
        Return "Stacked Bar 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 bar chart
        Dim data0() As Double = {100, 115, 165, 107, 67}
        Dim data1() As Double = {85, 106, 129, 161, 123}
        Dim data2() As Double = {67, 87, 86, 167, 157}

        ' The labels for the bar chart
        Dim labels() As String = {"Mon", "Tue", "Wed", "Thu", "Fri"}

        ' Create a XYChart object of size 600 x 360 pixels
        Dim c As XYChart = New XYChart(600, 360)

        ' Set default text color to dark grey (0x333333)
        c.setColor(Chart.TextColor, &H333333)

        ' Set the plotarea at (70, 20) and of size 400 x 300 pixels, with transparent background and
        ' border and light grey (0xcccccc) horizontal grid lines
        c.setPlotArea(70, 20, 400, 300, Chart.Transparent, -1, Chart.Transparent, &Hcccccc)

        ' Add a legend box at (480, 20) using vertical layout and 12pt Arial font. Set background
        ' and border to transparent and key icon border to the same as the fill color.
        Dim b As LegendBox = c.addLegend(480, 20, True, "Arial", 12)
        b.setBackground(Chart.Transparent, Chart.Transparent)
        b.setKeyBorder(Chart.SameAsMainColor)

        ' Set the x and y axis stems to transparent and the label font to 12pt Arial
        c.xAxis().setColors(Chart.Transparent)
        c.yAxis().setColors(Chart.Transparent)
        c.xAxis().setLabelStyle("Arial", 12)
        c.yAxis().setLabelStyle("Arial", 12)

        ' Add a stacked bar layer
        Dim layer As BarLayer = c.addBarLayer2(Chart.Stack)

        ' Add the three data sets to the bar layer
        layer.addDataSet(data0, &Haaccee, "Server # 1")
        layer.addDataSet(data1, &Hbbdd88, "Server # 2")
        layer.addDataSet(data2, &Heeaa66, "Server # 3")

        ' Set the bar border to transparent
        layer.setBorderColor(Chart.Transparent)

        ' Enable labelling for the entire bar and use 12pt Arial font
        layer.setAggregateLabelStyle("Arial", 12)

        ' Enable labelling for the bar segments and use 12pt Arial font with center alignment
        layer.setDataLabelStyle("Arial", 10).setAlignment(Chart.Center)

        ' For a vertical stacked bar with positive data, the first data set is at the bottom. For
        ' the legend box, by default, the first entry at the top. We can reverse the legend order to
        ' make the legend box consistent with the stacked bar.
        layer.setLegendOrder(Chart.ReverseLegend)

        ' Set the labels on the x axis.
        c.xAxis().setLabels(labels)

        ' For the automatic y-axis labels, set the minimum spacing to 40 pixels.
        c.yAxis().setTickDensity(40)

        ' Add a title to the y axis using dark grey (0x555555) 14pt Arial Bold font
        c.yAxis().setTitle("Y-Axis Title Placeholder", "Arial Bold", 14, &H555555)

        ' Output the chart
        viewer.Chart = c

        'include tool tip for the chart
        viewer.ImageMap = c.getHTMLImageMap("clickable", "", _
            "title='{dataSetName} on {xLabel}: {value} MBytes/hour'")

    End Sub

End Class

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

namespace CSharpWPFDemo
{
    public class stackedbar : DemoModule
    {
        //Name of demo module
        public string getName() { return "Stacked Bar 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 bar chart
            double[] data0 = {100, 115, 165, 107, 67};
            double[] data1 = {85, 106, 129, 161, 123};
            double[] data2 = {67, 87, 86, 167, 157};

            // The labels for the bar chart
            string[] labels = {"Mon", "Tue", "Wed", "Thu", "Fri"};

            // Create a XYChart object of size 600 x 360 pixels
            XYChart c = new XYChart(600, 360);

            // Set default text color to dark grey (0x333333)
            c.setColor(Chart.TextColor, 0x333333);

            // Set the plotarea at (70, 20) and of size 400 x 300 pixels, with transparent
            // background and border and light grey (0xcccccc) horizontal grid lines
            c.setPlotArea(70, 20, 400, 300, Chart.Transparent, -1, Chart.Transparent, 0xcccccc);

            // Add a legend box at (480, 20) using vertical layout and 12pt Arial font. Set
            // background and border to transparent and key icon border to the same as the fill
            // color.
            LegendBox b = c.addLegend(480, 20, true, "Arial", 12);
            b.setBackground(Chart.Transparent, Chart.Transparent);
            b.setKeyBorder(Chart.SameAsMainColor);

            // Set the x and y axis stems to transparent and the label font to 12pt Arial
            c.xAxis().setColors(Chart.Transparent);
            c.yAxis().setColors(Chart.Transparent);
            c.xAxis().setLabelStyle("Arial", 12);
            c.yAxis().setLabelStyle("Arial", 12);

            // Add a stacked bar layer
            BarLayer layer = c.addBarLayer2(Chart.Stack);

            // Add the three data sets to the bar layer
            layer.addDataSet(data0, 0xaaccee, "Server # 1");
            layer.addDataSet(data1, 0xbbdd88, "Server # 2");
            layer.addDataSet(data2, 0xeeaa66, "Server # 3");

            // Set the bar border to transparent
            layer.setBorderColor(Chart.Transparent);

            // Enable labelling for the entire bar and use 12pt Arial font
            layer.setAggregateLabelStyle("Arial", 12);

            // Enable labelling for the bar segments and use 12pt Arial font with center alignment
            layer.setDataLabelStyle("Arial", 10).setAlignment(Chart.Center);

            // For a vertical stacked bar with positive data, the first data set is at the bottom.
            // For the legend box, by default, the first entry at the top. We can reverse the legend
            // order to make the legend box consistent with the stacked bar.
            layer.setLegendOrder(Chart.ReverseLegend);

            // Set the labels on the x axis.
            c.xAxis().setLabels(labels);

            // For the automatic y-axis labels, set the minimum spacing to 40 pixels.
            c.yAxis().setTickDensity(40);

            // Add a title to the y axis using dark grey (0x555555) 14pt Arial Bold font
            c.yAxis().setTitle("Y-Axis Title Placeholder", "Arial Bold", 14, 0x555555);

            // Output the chart
            viewer.Chart = c;

            //include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("clickable", "",
                "title='{dataSetName} on {xLabel}: {value} MBytes/hour'");
        }
    }
}

[ASP.NET Web Forms - C# version] NetWebCharts\CSharpASP\stackedbar.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 bar chart
    double[] data0 = {100, 115, 165, 107, 67};
    double[] data1 = {85, 106, 129, 161, 123};
    double[] data2 = {67, 87, 86, 167, 157};

    // The labels for the bar chart
    string[] labels = {"Mon", "Tue", "Wed", "Thu", "Fri"};

    // Create a XYChart object of size 600 x 360 pixels
    XYChart c = new XYChart(600, 360);

    // Set default text color to dark grey (0x333333)
    c.setColor(Chart.TextColor, 0x333333);

    // Set the plotarea at (70, 20) and of size 400 x 300 pixels, with transparent background and
    // border and light grey (0xcccccc) horizontal grid lines
    c.setPlotArea(70, 20, 400, 300, Chart.Transparent, -1, Chart.Transparent, 0xcccccc);

    // Add a legend box at (480, 20) using vertical layout and 12pt Arial font. Set background and
    // border to transparent and key icon border to the same as the fill color.
    LegendBox b = c.addLegend(480, 20, true, "Arial", 12);
    b.setBackground(Chart.Transparent, Chart.Transparent);
    b.setKeyBorder(Chart.SameAsMainColor);

    // Set the x and y axis stems to transparent and the label font to 12pt Arial
    c.xAxis().setColors(Chart.Transparent);
    c.yAxis().setColors(Chart.Transparent);
    c.xAxis().setLabelStyle("Arial", 12);
    c.yAxis().setLabelStyle("Arial", 12);

    // Add a stacked bar layer
    BarLayer layer = c.addBarLayer2(Chart.Stack);

    // Add the three data sets to the bar layer
    layer.addDataSet(data0, 0xaaccee, "Server # 1");
    layer.addDataSet(data1, 0xbbdd88, "Server # 2");
    layer.addDataSet(data2, 0xeeaa66, "Server # 3");

    // Set the bar border to transparent
    layer.setBorderColor(Chart.Transparent);

    // Enable labelling for the entire bar and use 12pt Arial font
    layer.setAggregateLabelStyle("Arial", 12);

    // Enable labelling for the bar segments and use 12pt Arial font with center alignment
    layer.setDataLabelStyle("Arial", 10).setAlignment(Chart.Center);

    // For a vertical stacked bar with positive data, the first data set is at the bottom. For the
    // legend box, by default, the first entry at the top. We can reverse the legend order to make
    // the legend box consistent with the stacked bar.
    layer.setLegendOrder(Chart.ReverseLegend);

    // Set the labels on the x axis.
    c.xAxis().setLabels(labels);

    // For the automatic y-axis labels, set the minimum spacing to 40 pixels.
    c.yAxis().setTickDensity(40);

    // Add a title to the y axis using dark grey (0x555555) 14pt Arial Bold font
    c.yAxis().setTitle("Y-Axis Title Placeholder", "Arial Bold", 14, 0x555555);

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

    // Include tool tip for the chart
    WebChartViewer1.ImageMap = c.getHTMLImageMap("", "",
        "title='{dataSetName} on {xLabel}: {value} MBytes/hour'");
}

</script>

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

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\stackedbar.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 bar chart
    Dim data0() As Double = {100, 115, 165, 107, 67}
    Dim data1() As Double = {85, 106, 129, 161, 123}
    Dim data2() As Double = {67, 87, 86, 167, 157}

    ' The labels for the bar chart
    Dim labels() As String = {"Mon", "Tue", "Wed", "Thu", "Fri"}

    ' Create a XYChart object of size 600 x 360 pixels
    Dim c As XYChart = New XYChart(600, 360)

    ' Set default text color to dark grey (0x333333)
    c.setColor(Chart.TextColor, &H333333)

    ' Set the plotarea at (70, 20) and of size 400 x 300 pixels, with transparent background and
    ' border and light grey (0xcccccc) horizontal grid lines
    c.setPlotArea(70, 20, 400, 300, Chart.Transparent, -1, Chart.Transparent, &Hcccccc)

    ' Add a legend box at (480, 20) using vertical layout and 12pt Arial font. Set background and
    ' border to transparent and key icon border to the same as the fill color.
    Dim b As LegendBox = c.addLegend(480, 20, True, "Arial", 12)
    b.setBackground(Chart.Transparent, Chart.Transparent)
    b.setKeyBorder(Chart.SameAsMainColor)

    ' Set the x and y axis stems to transparent and the label font to 12pt Arial
    c.xAxis().setColors(Chart.Transparent)
    c.yAxis().setColors(Chart.Transparent)
    c.xAxis().setLabelStyle("Arial", 12)
    c.yAxis().setLabelStyle("Arial", 12)

    ' Add a stacked bar layer
    Dim layer As BarLayer = c.addBarLayer2(Chart.Stack)

    ' Add the three data sets to the bar layer
    layer.addDataSet(data0, &Haaccee, "Server # 1")
    layer.addDataSet(data1, &Hbbdd88, "Server # 2")
    layer.addDataSet(data2, &Heeaa66, "Server # 3")

    ' Set the bar border to transparent
    layer.setBorderColor(Chart.Transparent)

    ' Enable labelling for the entire bar and use 12pt Arial font
    layer.setAggregateLabelStyle("Arial", 12)

    ' Enable labelling for the bar segments and use 12pt Arial font with center alignment
    layer.setDataLabelStyle("Arial", 10).setAlignment(Chart.Center)

    ' For a vertical stacked bar with positive data, the first data set is at the bottom. For the
    ' legend box, by default, the first entry at the top. We can reverse the legend order to make
    ' the legend box consistent with the stacked bar.
    layer.setLegendOrder(Chart.ReverseLegend)

    ' Set the labels on the x axis.
    c.xAxis().setLabels(labels)

    ' For the automatic y-axis labels, set the minimum spacing to 40 pixels.
    c.yAxis().setTickDensity(40)

    ' Add a title to the y axis using dark grey (0x555555) 14pt Arial Bold font
    c.yAxis().setTitle("Y-Axis Title Placeholder", "Arial Bold", 14, &H555555)

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

    ' Include tool tip for the chart
    WebChartViewer1.ImageMap = c.getHTMLImageMap("", "", _
        "title='{dataSetName} on {xLabel}: {value} MBytes/hour'")

End Sub

</script>

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

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

namespace NetMvcCharts.Controllers
{
    public class StackedbarController : Controller
    {
        //
        // Default Action
        //
        public ActionResult Index()
        {
            ViewBag.Title = "Stacked Bar 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 bar chart
            double[] data0 = {100, 115, 165, 107, 67};
            double[] data1 = {85, 106, 129, 161, 123};
            double[] data2 = {67, 87, 86, 167, 157};

            // The labels for the bar chart
            string[] labels = {"Mon", "Tue", "Wed", "Thu", "Fri"};

            // Create a XYChart object of size 600 x 360 pixels
            XYChart c = new XYChart(600, 360);

            // Set default text color to dark grey (0x333333)
            c.setColor(Chart.TextColor, 0x333333);

            // Set the plotarea at (70, 20) and of size 400 x 300 pixels, with transparent background and
            // border and light grey (0xcccccc) horizontal grid lines
            c.setPlotArea(70, 20, 400, 300, Chart.Transparent, -1, Chart.Transparent, 0xcccccc);

            // Add a legend box at (480, 20) using vertical layout and 12pt Arial font. Set background
            // and border to transparent and key icon border to the same as the fill color.
            LegendBox b = c.addLegend(480, 20, true, "Arial", 12);
            b.setBackground(Chart.Transparent, Chart.Transparent);
            b.setKeyBorder(Chart.SameAsMainColor);

            // Set the x and y axis stems to transparent and the label font to 12pt Arial
            c.xAxis().setColors(Chart.Transparent);
            c.yAxis().setColors(Chart.Transparent);
            c.xAxis().setLabelStyle("Arial", 12);
            c.yAxis().setLabelStyle("Arial", 12);

            // Add a stacked bar layer
            BarLayer layer = c.addBarLayer2(Chart.Stack);

            // Add the three data sets to the bar layer
            layer.addDataSet(data0, 0xaaccee, "Server # 1");
            layer.addDataSet(data1, 0xbbdd88, "Server # 2");
            layer.addDataSet(data2, 0xeeaa66, "Server # 3");

            // Set the bar border to transparent
            layer.setBorderColor(Chart.Transparent);

            // Enable labelling for the entire bar and use 12pt Arial font
            layer.setAggregateLabelStyle("Arial", 12);

            // Enable labelling for the bar segments and use 12pt Arial font with center alignment
            layer.setDataLabelStyle("Arial", 10).setAlignment(Chart.Center);

            // For a vertical stacked bar with positive data, the first data set is at the bottom. For
            // the legend box, by default, the first entry at the top. We can reverse the legend order to
            // make the legend box consistent with the stacked bar.
            layer.setLegendOrder(Chart.ReverseLegend);

            // Set the labels on the x axis.
            c.xAxis().setLabels(labels);

            // For the automatic y-axis labels, set the minimum spacing to 40 pixels.
            c.yAxis().setTickDensity(40);

            // Add a title to the y axis using dark grey (0x555555) 14pt Arial Bold font
            c.yAxis().setTitle("Y-Axis Title Placeholder", "Arial Bold", 14, 0x555555);

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

            // Include tool tip for the chart
            viewer.ImageMap = c.getHTMLImageMap("", "",
                "title='{dataSetName} on {xLabel}: {value} MBytes/hour'");
        }
    }
}

[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>