public IBindingList ChartDataSource { get; }

Public ReadOnly Property ChartDataSource As IBindingList

<dx:ThemedWindow
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:dx="http://schemas.devexpress.com/winfx/2008/xaml/core"
    xmlns:dxpg="http://schemas.devexpress.com/winfx/2008/xaml/pivotgrid" 
    xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/charts" 
    x:Class="WpfPivotChart.MainWindow" Loaded="Window_Loaded"
    Title="PivotGrid and Bound ChartControl" Height="800" Width="1000">
    <Grid>
        <Grid>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="300"/>
                <ColumnDefinition/>
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"/>
                <RowDefinition/>
            </Grid.RowDefinitions>
            <CheckBox x:Name="cbTransposeDataSource" Content="Transpose Data Source" 
              Margin="5,10,5,10">
                <CheckBox.IsChecked>
                    <Binding ElementName="pivotGridControl1" Path="ChartProvideDataByColumns"
                     Mode="TwoWay" />
                </CheckBox.IsChecked>
            </CheckBox>
            <dxpg:PivotGridControl ShowRowGrandTotals="False" ShowColumnGrandTotals="False"
                           Grid.Column="0" Grid.Row="1" x:Name="pivotGridControl1"
                           ShowFilterHeaders="False" ChartSelectionOnly="False"
                           ChartFieldValuesProvideMode="DisplayText"
                           ChartProvideDataByColumns="True">
                <dxpg:PivotGridControl.Fields>
                    <dxpg:PivotGridField Name="fieldYear" FieldName="OrderDate" Area="ColumnArea"
                                 Caption="Year" GroupInterval="DateYear" />
                    <dxpg:PivotGridField Name="fieldSalesPerson" FieldName="ContactName"
                                 Area="RowArea" Caption="Sales Person" />
                    <dxpg:PivotGridField Name="fieldQuantity" FieldName="Quantity" Area="DataArea" />
                </dxpg:PivotGridControl.Fields>
            </dxpg:PivotGridControl>
            <dxc:ChartControl DataSource="{Binding ElementName=pivotGridControl1, Path=ChartDataSource}"
                      x:Name="chartControl1" Grid.Column="1" Grid.Row="1">
                <dxc:ChartControl.Diagram>
                    <dxc:XYDiagram2D SeriesDataMember="Series">
                        <dxc:XYDiagram2D.SeriesTemplate>
                            <dxc:BarSideBySideSeries2D ArgumentDataMember="Arguments" 
                                               ValueDataMember="Values"/>
                        </dxc:XYDiagram2D.SeriesTemplate>
                    </dxc:XYDiagram2D>
                </dxc:ChartControl.Diagram>
            </dxc:ChartControl>
        </Grid>
    </Grid>
</dx:ThemedWindow>

using System.Data;
using System.Windows;
using DevExpress.Xpf.Core;
using Microsoft.Data.Sqlite;

namespace WpfPivotChart {
    public partial class MainWindow : ThemedWindow {
        public MainWindow() {
            InitializeComponent();
        }
        private void Window_Loaded(object sender,RoutedEventArgs e) {
            // Create a data source.
            DataTable dt;

            using (SqliteConnection connection = new SqliteConnection("Data Source=nwind.db")) {
                connection.Open();
                SqliteCommand cmd = (SqliteCommand)SqliteFactory.Instance.CreateCommand();
                cmd.CommandText = @"SELECT * FROM Orders
                                    INNER JOIN Customers ON Customers.CustomerID = Orders.CustomerID
                                    INNER JOIN OrderDetails ON OrderDetails.OrderID = Orders.OrderID";
                cmd.Connection = connection;
                using (SqliteDataReader dr = cmd.ExecuteReader()) {
                    do {
                        dt = new DataTable();
                        dt.BeginLoadData();
                        dt.Load(dr);
                        dt.EndLoadData();

                    } while (!dr.IsClosed && dr.NextResult());
                }
            }

            // Assign the data source to the PivotGrid control.
            pivotGridControl1.DataSource = dt;
            pivotGridControl1.BestFit();
        }
    }
}

Imports System.Data
Imports System.Text
Imports DevExpress.Xpf.Core
Imports DevExpress.Xpf.PivotGrid
Imports Microsoft.Data.Sqlite

Partial Public Class MainWindow
    Inherits ThemedWindow
    Public Sub New()
        InitializeComponent()
    End Sub
    Private Sub Window_Loaded(ByVal sender As Object, ByVal e As RoutedEventArgs)
        ' Create a data source.
        Dim dt As DataTable
        Using connection As New SqliteConnection("Data Source=nwind.db;")
            connection.Open()
            Dim cmd As SqliteCommand = CType(SqliteFactory.Instance.CreateCommand(), SqliteCommand)
            cmd.CommandText = "SELECT * FROM Orders
                                    INNER JOIN Customers ON Customers.CustomerID = Orders.CustomerID
                                    INNER JOIN OrderDetails ON OrderDetails.OrderID = Orders.OrderID"
            cmd.Connection = connection
            Using dr As SqliteDataReader = cmd.ExecuteReader()
                Do
                    dt = New DataTable()
                    dt.BeginLoadData()
                    dt.Load(dr)
                    dt.EndLoadData()
                Loop While Not dr.IsClosed AndAlso dr.NextResult()
            End Using
        End Using

        ' Assign the data source to the PivotGrid control.
        pivotGridControl1.DataSource = dt
    End Sub
End Class

</dxpg:PivotGridControl>
<dxc:ChartControl DataSource="{Binding ElementName=pivotGridControl1, Path=ChartDataSource}"
          x:Name="chartControl1" Grid.Column="1" Grid.Row="1">