public class BarStackedSeries2D :
    BarSeries2D,
    IStackedView

Public Class BarStackedSeries2D
    Inherits BarSeries2D
    Implements IStackedView

<Window x:Class="StackedBar2DChart.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/charts" Title="Window1" Height="350" Width="620">
    <Grid>
        <dxc:ChartControl Name="chartControl1">
            <dxc:ChartControl.Diagram>
                <dxc:XYDiagram2D>
                    <dxc:XYDiagram2D.Series>
                        <dxc:BarStackedSeries2D DisplayName="First Series">
                            <dxc:BarStackedSeries2D.Model>
                                <dxc:SteelColumnBar2DModel />
                            </dxc:BarStackedSeries2D.Model>
                            <dxc:BarStackedSeries2D.Points>
                                <dxc:SeriesPoint Argument="A" Value="2" />
                                <dxc:SeriesPoint Argument="B" Value="2" />
                                <dxc:SeriesPoint Argument="C" Value="1" />
                                <dxc:SeriesPoint Argument="D" Value="6" />
                            </dxc:BarStackedSeries2D.Points>
                        </dxc:BarStackedSeries2D>
                        <dxc:BarStackedSeries2D DisplayName="Second Series">
                            <dxc:BarStackedSeries2D.Model>
                                <dxc:SteelColumnBar2DModel />
                            </dxc:BarStackedSeries2D.Model>
                            <dxc:BarStackedSeries2D.Points>
                                <dxc:SeriesPoint Argument="A" Value="4" />
                                <dxc:SeriesPoint Argument="B" Value="3" />
                                <dxc:SeriesPoint Argument="C" Value="2" />
                                <dxc:SeriesPoint Argument="D" Value="1" />
                            </dxc:BarStackedSeries2D.Points>
                        </dxc:BarStackedSeries2D>
                    </dxc:XYDiagram2D.Series>
                </dxc:XYDiagram2D>
            </dxc:ChartControl.Diagram>
            <dxc:ChartControl.Legend>
                <dxc:Legend />
            </dxc:ChartControl.Legend>
        </dxc:ChartControl>
    </Grid>
</Window>

Imports Microsoft.VisualBasic
Imports System
Imports System.Collections.Generic
Imports System.Configuration
Imports System.Data
Imports System.Linq
Imports System.Windows

Namespace StackedBar2DChart
    ''' <summary>
    ''' Interaction logic for App.xaml
    ''' </summary>
    Partial Public Class App
        Inherits Application
    End Class
End Namespace

<Application x:Class="StackedBar2DChart.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" StartupUri="Window1.xaml">
    <Application.Resources>

    </Application.Resources>
</Application>

Imports Microsoft.VisualBasic
Imports System.Windows

Namespace StackedBar2DChart

    Partial Public Class Window1
        Inherits Window
        Public Sub New()
            InitializeComponent()
        End Sub
    End Class
End Namespace

using System.Windows;

namespace StackedBar2DChart {

    public partial class Window1 : Window {
        public Window1() {
            InitializeComponent();
        }
    }
}