xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
StartupUri="MainWindow.xaml" Exit="AppExit"
>
//File:Window.xaml.cs
using System;
using System.Windows;
using System.Windows.Controls;
namespace SimpleXamlApp
{
public partial class MyApp : Application
{
void AppExit(object sender, ExitEventArgs e)
{
MessageBox.Show("App has exited");
}
}
}