<Application
    x:Class="NavigationBasics.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    StartupUri="Page1.xaml">
  <!-- no need for a main window at all -->
  <!-- StartupUri="Window1.xaml" -->
</Application>
