PieSeriesViewBase.ExplodeMode Property

Gets or sets the value used to specify which series should be represented as slices offset from the pie.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v18.2.dll

Declaration

C#

[XtraSerializableProperty]
[XtraChartsLocalizableCategory(XtraChartsCategory.Behavior)]
public PieExplodeMode ExplodeMode { get; set; }

VB.NET

<XtraSerializableProperty>
<XtraChartsLocalizableCategory(XtraChartsCategory.Behavior)>
Public Property ExplodeMode As PieExplodeMode

Property Value

Type	Description
PieExplodeMode	A PieExplodeMode enumeration member, that determines the exploded series.

Available values:

Name	Description
None	No pie slices are exploded.
All	All pie slices are exploded.
MinValue	A pie slice for the series point with the minimum value (represented as the first item in a series point’s SeriesPoint.Values collection) is exploded. If there are several pie slices with the same minimum value, all of them are exploded.
MaxValue	A pie slice for the series point with the maximum value (represented as the first item in a series point’s SeriesPoint.Values collection) is exploded. If there are several pie slices with the same maximum value, all of them are exploded.
UsePoints	Pie slices to be exploded are contained in the collection of series points returned by the PieSeriesViewBase.ExplodedPoints property.
UseFilters	Pie slices to be exploded are specified via the collection of filters returned by the PieSeriesViewBase.ExplodedPointsFilters property.
Others	A pie slice showing the Others category is exploded. Note that this category is displayed if the TopNOptions.Enabled and the TopNOptions.ShowOthers properties are set to true.

Remarks

For more information, refer to the PieExplodeMode topic.

Example

The following example demonstrates how to create a ChartControl with a series of the PieSeriesView type, and add this chart to a form at runtime.

Note that this series view type is associated with the SimpleDiagram type, and you should cast your diagram object to this type, in order to access its specific options.

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-create-a-pie-chart-e1189

Form1.cs

using System;
using System.Windows.Forms;
using DevExpress.XtraCharts;
// ...

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

        private void Form1_Load(object sender, EventArgs e) {
            // Create an empty chart.
            ChartControl pieChart = new ChartControl();

            // Create a pie series.
            Series series1 = new Series("A Pie Series", ViewType.Pie);

            // Populate the series with points.
            series1.Points.Add(new SeriesPoint("Russia", 17.0752));
            series1.Points.Add(new SeriesPoint("Canada", 9.98467));
            series1.Points.Add(new SeriesPoint("USA", 9.63142));
            series1.Points.Add(new SeriesPoint("China", 9.59696));
            series1.Points.Add(new SeriesPoint("Brazil", 8.511965));
            series1.Points.Add(new SeriesPoint("Australia", 7.68685));
            series1.Points.Add(new SeriesPoint("India", 3.28759));
            series1.Points.Add(new SeriesPoint("Others", 81.2));

            // Add the series to the chart.
            pieChart.Series.Add(series1);

            // Format the the series labels.
            series1.Label.TextPattern = "{A}: {VP:p0}";

            // Adjust the position of series labels. 
            ((PieSeriesLabel)series1.Label).Position = PieSeriesLabelPosition.TwoColumns;

            // Detect overlapping of series labels.
            ((PieSeriesLabel)series1.Label).ResolveOverlappingMode = ResolveOverlappingMode.Default;

            // Access the view-type-specific options of the series.
            PieSeriesView myView = (PieSeriesView)series1.View;

            // Show a title for the series.
            myView.Titles.Add(new SeriesTitle());
            myView.Titles[0].Text = series1.Name;

            // Specify a data filter to explode points.
            myView.ExplodedPointsFilters.Add(new SeriesPointFilter(SeriesPointKey.Value_1,
                DataFilterCondition.GreaterThanOrEqual, 9));
            myView.ExplodedPointsFilters.Add(new SeriesPointFilter(SeriesPointKey.Argument,
                DataFilterCondition.NotEqual, "Others"));
            myView.ExplodeMode = PieExplodeMode.UseFilters;
            myView.ExplodedDistancePercentage = 30;
            myView.RuntimeExploding = true;
            myView.HeightToWidthRatio = 0.75;

            // Hide the legend (if necessary).
            pieChart.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False;

            // Add the chart to the form.
            pieChart.Dock = DockStyle.Fill;
            this.Controls.Add(pieChart);
        }
    }
}

Form1.vb

Imports System
Imports System.Windows.Forms
Imports DevExpress.XtraCharts
' ...

Namespace Series_PieChart
    Partial Public Class Form1
        Inherits Form

        Public Sub New()
            InitializeComponent()
        End Sub

        Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Load
            ' Create an empty chart.
            Dim pieChart As New ChartControl()

            ' Create a pie series.
            Dim series1 As New Series("A Pie Series", ViewType.Pie)

            ' Populate the series with points.
            series1.Points.Add(New SeriesPoint("Russia", 17.0752))
            series1.Points.Add(New SeriesPoint("Canada", 9.98467))
            series1.Points.Add(New SeriesPoint("USA", 9.63142))
            series1.Points.Add(New SeriesPoint("China", 9.59696))
            series1.Points.Add(New SeriesPoint("Brazil", 8.511965))
            series1.Points.Add(New SeriesPoint("Australia", 7.68685))
            series1.Points.Add(New SeriesPoint("India", 3.28759))
            series1.Points.Add(New SeriesPoint("Others", 81.2))

            ' Add the series to the chart.
            pieChart.Series.Add(series1)

            ' Format the the series labels.
            series1.Label.TextPattern = "{A}: {VP:p0}"

            ' Adjust the position of series labels. 
            CType(series1.Label, PieSeriesLabel).Position = PieSeriesLabelPosition.TwoColumns

            ' Detect overlapping of series labels.
            CType(series1.Label, PieSeriesLabel).ResolveOverlappingMode = ResolveOverlappingMode.Default

            ' Access the view-type-specific options of the series.
            Dim myView As PieSeriesView = CType(series1.View, PieSeriesView)

            ' Show a title for the series.
            myView.Titles.Add(New SeriesTitle())
            myView.Titles(0).Text = series1.Name

            ' Specify a data filter to explode points.
            myView.ExplodedPointsFilters.Add(New SeriesPointFilter(SeriesPointKey.Value_1, DataFilterCondition.GreaterThanOrEqual, 9))
            myView.ExplodedPointsFilters.Add(New SeriesPointFilter(SeriesPointKey.Argument, DataFilterCondition.NotEqual, "Others"))
            myView.ExplodeMode = PieExplodeMode.UseFilters
            myView.ExplodedDistancePercentage = 30
            myView.RuntimeExploding = True
            myView.HeightToWidthRatio = 0.75

            ' Hide the legend (if necessary).
            pieChart.Legend.Visibility = DevExpress.Utils.DefaultBoolean.False

            ' Add the chart to the form.
            pieChart.Dock = DockStyle.Fill
            Me.Controls.Add(pieChart)
        End Sub
    End Class
End Namespace