namespace WpfApp1
{
  using System.Windows;

  /// <summary>
  /// Interaction logic for MainWindow.xaml
  /// </summary>
  public partial class MainWindow
  {
    public MainWindow()
    {
      InitializeComponent();
    }

    private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
    {
      MessageBox.Show($"This is a message box. Sent by a {sender.GetType().Name}.", this.Title, MessageBoxButton.OK, MessageBoxImage.Information, MessageBoxResult.OK);
    }
  }
}