PieDashboardItem Class

[DashboardItemType("PIE")]
public class PieDashboardItem : ChartDashboardItemBase, IDashboardComponent, IComponent, ISupportInitialize, IDisposable, IChangeService, ISupportPrefix, ICurrencyCultureNameProvider, ISliceDataQueryProvider, IDimensionAxes, IMasterFilter, IMasterFilterItem, IDataItemRepositoryProvider, IDataSourceSchemaProvider, IDataItemContainerContext, IDataItemContext, IColorSchemeContext, IFormatRulesContext, IFiltersProvider, IInteractivityOptionsProvider, IArgumentsDashboardItem, IPieContext, IElementContainer

<DashboardItemType("PIE")>
Public Class PieDashboardItem
    Inherits ChartDashboardItemBase
    Implements IDashboardComponent, IComponent, ISupportInitialize, IDisposable, IChangeService, ISupportPrefix, ICurrencyCultureNameProvider, ISliceDataQueryProvider, IDimensionAxes, IMasterFilter, IMasterFilterItem, IDataItemRepositoryProvider, IDataSourceSchemaProvider, IDataItemContainerContext, IDataItemContext, IColorSchemeContext, IFormatRulesContext, IFiltersProvider, IInteractivityOptionsProvider, IArgumentsDashboardItem, IPieContext, IElementContainer

Imports System
Imports System.Windows.Forms
Imports DevExpress.DashboardCommon
Imports DevExpress.DataAccess

Namespace Dashboard_CreatePies
    Partial Public Class Form1
        Inherits Form

        Public Sub New()
            InitializeComponent()
        End Sub
        Private Function CreatePies(ByVal dataSource As DashboardObjectDataSource) As PieDashboardItem

            ' Creates a pie dashboard item and specifies its data source.
            Dim pies As New PieDashboardItem()
            pies.DataSource = dataSource

            ' Specifies a measure that provides data used to calculate pie values.
            pies.Values.Add(New Measure("Extended Price"))
            ' Specifies a dimension that provides data for arguments in a pie.
            pies.Arguments.Add(New Dimension("Country"))
            ' Specifies a dimension that provides data for pie series.
            pies.SeriesDimensions.Add(New Dimension("OrderDate"))

            Return pies
        End Function
        Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs) Handles MyBase.Load

            ' Creates a dashboard and sets it as the currently opened dashboard in the dashboard viewer.
            dashboardViewer1.Dashboard = New Dashboard()

            ' Creates a data source and adds it to the dashboard data source collection.
            Dim dataSource As New DashboardObjectDataSource()
            dataSource.DataSource = (New nwindDataSetTableAdapters.SalesPersonTableAdapter()).GetData()
            dashboardViewer1.Dashboard.DataSources.Add(dataSource)

            ' Creates a pie dashboard item with the specified data source 
            ' and adds it to the Items collection to display within the dashboard.
            Dim pies As PieDashboardItem = CreatePies(dataSource)
            dashboardViewer1.Dashboard.Items.Add(pies)

            ' Reloads data in the data sources.
            dashboardViewer1.ReloadData()
        End Sub
    End Class
End Namespace

using System;
using System.Windows.Forms;
using DevExpress.DashboardCommon;
using DevExpress.DataAccess;

namespace Dashboard_CreatePies {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }
        private PieDashboardItem CreatePies(DashboardObjectDataSource dataSource) {

            // Creates a pie dashboard item and specifies its data source.
            PieDashboardItem pies = new PieDashboardItem();
            pies.DataSource = dataSource;

            // Specifies a measure that provides data used to calculate pie values.
            pies.Values.Add(new Measure("Extended Price"));
            // Specifies a dimension that provides data for arguments in a pie.
            pies.Arguments.Add(new Dimension("Country"));
            // Specifies a dimension that provides data for pie series.
            pies.SeriesDimensions.Add(new Dimension("OrderDate"));

            return pies;
        }
        private void Form1_Load(object sender, EventArgs e) {

            // Creates a dashboard and sets it as the currently opened dashboard in the dashboard viewer.
            dashboardViewer1.Dashboard = new Dashboard();

            // Creates a data source and adds it to the dashboard data source collection.
            DashboardObjectDataSource dataSource = new DashboardObjectDataSource();
            dataSource.DataSource = (new nwindDataSetTableAdapters.SalesPersonTableAdapter()).GetData();
            dashboardViewer1.Dashboard.DataSources.Add(dataSource);

            // Creates a pie dashboard item with the specified data source 
            // and adds it to the Items collection to display within the dashboard.
            PieDashboardItem pies = CreatePies(dataSource);
            dashboardViewer1.Dashboard.Items.Add(pies);

            // Reloads data in the data sources.
            dashboardViewer1.ReloadData();
        }
    }
}