title: Powershell-GUI filter for a list
body: <p>I try to build search for a list form with Powershell-GUI.</p>
  
  <pre><code>$searchButton = GenerateButton -text 'search' -x 10 -y 280 -action {
      $data = $listForm.Items  -like "*$searchInput.Text*"
      $listForm.DataSource = $data
  }
  </code></pre>
  
  <p>Filter <code>-like</code> does not work with objects.</p>