The implementation of our button's Click event handler in Xaml
<Window x:Class="SimpleXamlApp.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="My Xaml App" Height="200" Width="300" WindowStartupLocation ="CenterScreen"> <Button Width="133" Height="24" Name="btnExitApp" Click ="btnExitApp_Clicked"> Exit Application </Button> <x:Code> private void btnExitApp_Clicked(object sender, RoutedEventArgs e) { Application.Current.Shutdown(); } </x:Code> </Window>