C#

public SampleSortMainWindow()
{
    // Set the application wide system constants
    SetSystemConstants.SetConstants();
    //BuildLookups.CreateLookups();

    // start up the main screen
    InitializeComponent();

    Navigator1.ApplicationViewStatusChanged += new Navigator.ApplicationViewChanged(Navigator1_ApplicationViewStatusChanged);

    lyrBrowserView.Visibility = Visibility.Visible;
    lyrDatabaseView.Visibility = Visibility.Hidden;
}

<UserControl<br />
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"<br />
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"<br />
    xmlns:d="http://schemas.microsoft.com/expression/blend/2006"<br />
	xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"<br />
	mc:Ignorable="d"<br />
    Name="Navigator1"<br />
    x:Class="SampleSort.Presentation.Navigator"<br />
    Height="32" Width="64" ClipToBounds="True"><br />
    <Grid>

public sealed class ApplicationViewEventArgs : EventArgs
{
    private Enums.ApplicationView _applicationView;

    public Enums.ApplicationView ApplicationViewStatus
    {
        get
        {
            return _applicationView;
        }
    }

    public ApplicationViewEventArgs(Enums.ApplicationView ApplicationViewStatus) : base()
    {
        _applicationView = ApplicationViewStatus;
    }
}

/// <summary>
/// Interaction logic for Navigator.xaml
/// </summary>
public partial class Navigator : UserControl
{
    public delegate void ApplicationViewChanged(object sender, ApplicationViewEventArgs e);

    public event ApplicationViewChanged ApplicationViewStatusChanged;

    public Navigator()
    {
        InitializeComponent();
    }

    private void btnBrowseView_Click(object sender, RoutedEventArgs e)
    {
        if (ApplicationViewStatusChanged != null)

            ApplicationViewStatusChanged(this, new ApplicationViewEventArgs(Enums.ApplicationView.BrowserView));

    }

    private void btnDatabaseView_Click(object sender, RoutedEventArgs e)
    {
        if (ApplicationViewStatusChanged != null)

            ApplicationViewStatusChanged(this, new ApplicationViewEventArgs(Enums.ApplicationView.DataBaseView));

    }
}

Jammer

Going where everyone here has gone before!
My Blog

if (null != UserControlEvent)
      UserControlEvent(this, EventArgs.Empty);

public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
            MyUsercontrol.UserControlEvent += new UserControlDelegate(MyUsercontrol_UserControlEvent);
        }

        void MyUsercontrol_UserControlEvent(object sender, EventArgs e)
        {
            Console.WriteLine("Event Raised");
        }
    }

Walaza wrote:

So how different is the code from this article to the one of a Windows application