How to: create bar button items and add separators between links

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

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

        Private Sub OnAppStartup_UpdateThemeName(ByVal sender As Object, ByVal e As StartupEventArgs)

            DevExpress.Xpf.Core.ApplicationThemeHelper.UpdateApplicationThemeName()
        End Sub 
    End Class 
End Namespace 

<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        xmlns:dxb="http://schemas.devexpress.com/winfx/2008/xaml/bars" 
        xmlns:dx="http://schemas.devexpress.com/winfx/2008/xaml/core" 
        x:Class="BarItemLinkSeparatorEx.Window1" 
        Title="Window1" Height="300" Width="300">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <dxb:BarContainerControl Grid.Row="0">
            <dxb:ToolBarControl Caption="Main Toolbar"  BarItemHorizontalIndent="10">
                <dxb:BarButtonItem Content="Undo" Glyph="{dx:DXImage Image=Undo_16x16.png}" ItemClick="itemClick"/>
                <dxb:BarButtonItem Content="Redo" Glyph="{dx:DXImage Image=Redo_16x16.png}" ItemClick="itemClick"/>
                <dxb:BarItemLinkSeparator />
                <dxb:BarButtonItem Content="Copy" Glyph="{dx:DXImage Image=Copy_16x16.png}" ItemClick="itemClick"/>
                <dxb:BarButtonItem Content="Paste" Glyph="{dx:DXImage Image=Paste_16x16.png}" ItemClick="itemClick"/>

            </dxb:ToolBarControl>
        </dxb:BarContainerControl>

        <RichTextBox Grid.Row="1"/>


    </Grid>
</Window>

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

    </Application.Resources>
</Application>

Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Text
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Imaging
Imports System.Windows.Navigation
Imports System.Windows.Shapes

Namespace BarItemLinkSeparatorEx
    ''' <summary> 
    ''' Interaction logic for Window1.xaml 
    ''' </summary> 
    Partial Public Class Window1
        Inherits Window

        Public Sub New()
            InitializeComponent()
        End Sub 

        ' Respond to clicking the bar items 
        Private Sub itemClick(ByVal sender As Object, ByVal e As DevExpress.Xpf.Bars.ItemClickEventArgs)
            MessageBox.Show("Item " & e.Item.Content & " has been clicked.")
        End Sub 

    End Class 
End Namespace 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace BarItemLinkSeparatorEx {
    /// <summary> 
    /// Interaction logic for Window1.xaml 
    /// </summary> 
    public partial class Window1 : Window {
        public Window1() {
            InitializeComponent();
        }

        // Respond to clicking the bar items 
        private void itemClick(object sender, DevExpress.Xpf.Bars.ItemClickEventArgs e) {
            MessageBox.Show("Item " + e.Item.Content + " has been clicked.");
        }

    }
}