title: Filtering Listboxes in a Windows Forms application
body: <p>Is it possible to filter the contents of a Listbox in a Windows Forms application?</p>
  
  <p>The DataSource of my ListBox is a BindingSource containing a bunch of DTOs in an:</p>
  
  <pre><code>IList&lt;DisplayDTO&gt;
  </code></pre>
  
  <p>I want to filter on the DTO property that is specified in the ListBox's DisplayMember.</p>
  
  <p>The text to be filtered on is provided in a separate Text Box.</p>