title: Add SubItems to ListView without using XAML
body: <p>How do you add sub-items to a <code>ListView</code>? I need to generate everything dynamically, but every example I've found uses XAML.</p>
  
  <p>Non-WPF was so simple:</p>
  
  <pre><code>ListViewItem lvi = listview.items.add(wahtever);
  lvi. blah blah blah
  </code></pre>
  
  <p>How do you add sub-items in WPF without using XAML?</p>