DonutSeriesView Class

Displays series data points as a Donut chart.

Assembly: DevExpress.WinUI.Charts.v21.1.dll

Declaration

C#
VB.NET

public class DonutSeriesView :
    PieSeriesView

Public Class DonutSeriesView
    Inherits PieSeriesView

Remarks

Define the Series.View property to assign a specific view to the series.

Example

The following example shows how to create a Donut chart:

Donut Chart

XAML

<Page
    x:Class="PieChartSample.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:PieChartSample"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:Charts="using:DevExpress.WinUI.Charts"
    mc:Ignorable="d"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
    <Page.DataContext>
        <local:ChartViewModel/>
    </Page.DataContext>
    <Grid>
        <Charts:PieChart x:Name="chart" ToolTipEnabled="True">
            <Charts:PieChart.Legend>
                <Charts:Legend HorizontalPosition="RightOutside" 
                               VerticalPosition="Center" 
                               Orientation="Horizontal" 
                               MaximumRowsOrColumns="1"/>
            </Charts:PieChart.Legend>
            <Charts:PieChart.Series>
                <Charts:Series x:Name="series">
                    <Charts:Series.View>
                        <Charts:DonutSeriesView ToolTipPointPattern="{}{A}: {VP:p}" 
                                              LegendPointPattern="{}{A} (${V}K)" 
                                              ShowLabels="True" 
                                              HoleRadiusPercent="60">
                            <Charts:DonutSeriesView.Title>
                                <Charts:SeriesTitle Content="Sales Volume by Products" Margin="10"/>
                            </Charts:DonutSeriesView.Title>
                            <Charts:DonutSeriesView.LabelOptions>
                                <Charts:SeriesLabelOptions Pattern="{}{VP:p}" 
                                                           Charts:PieSeriesView.LabelPosition="TwoColumns"/>
                            </Charts:DonutSeriesView.LabelOptions>
                        </Charts:DonutSeriesView>
                    </Charts:Series.View>
                    <Charts:Series.Data>
                        <Charts:DataSourceAdapter DataSource="{Binding DataPoints}">
                            <Charts:DataMember DataMemberType="Argument" ColumnName="Product" />
                            <Charts:DataMember DataMemberType="Value" ColumnName="Income" />
                        </Charts:DataSourceAdapter>
                    </Charts:Series.Data>
                </Charts:Series>
            </Charts:PieChart.Series>
        </Charts:PieChart>
    </Grid>
</Page>

using DevExpress.Mvvm;
using Microsoft.UI.Xaml.Controls;
using System.Collections.Generic;

namespace PieChartSample {
    public sealed partial class MainPage : Page {
        public MainPage() {
            this.InitializeComponent();
        }
    }
    public class DataPoint {
        public string Product { get; set; }
        public double Income { get; set; }
    }
    public class ChartViewModel : ViewModelBase {
        public ChartViewModel() {
            List<DataPoint> dataPoints = new List<DataPoint> {
                new DataPoint() { Product = "Camera", Income = 78 },
                new DataPoint() { Product = "Flash", Income = 92 },
                new DataPoint() { Product = "Smartphone", Income = 43 },
                new DataPoint() { Product = "Tripod", Income = 98 },
                new DataPoint() { Product = "Mobile Phone", Income = 70 },
                new DataPoint() { Product = "Smart Watch", Income = 98 },
                new DataPoint() { Product = "Laptop", Income = 85 },
                new DataPoint() { Product = "Tablet", Income = 99 },
                new DataPoint() { Product = "Headphone", Income = 94 }
            };
            DataPoints = dataPoints;
        }
        public List<DataPoint> DataPoints { get; }
    }
}

For step-by-step instructions on how to create a Pie chart, refer to the following help topic: Lesson 2 - Create a Pie Chart.