title: WPF Watermark PasswordBox from Watermark TextBox
body: <p>I am using a Watermark textbox as in <a href="https://stackoverflow.com/questions/833943/watermark-textbox-in-wpf">Watermark TextBox in WPF</a> </p>
  
  <pre><code> &lt;Grid Grid.Row="0" Background="{StaticResource brushWatermarkBackground}" Style="{StaticResource EntryFieldStyle}" &gt;
          &lt;TextBlock Margin="5,2" Text="This prompt dissappears as you type..." Foreground="{StaticResource brushWatermarkForeground}"
                     Visibility="{Binding ElementName=txtUserEntry, Path=Text.IsEmpty, Converter={StaticResource BooleanToVisibilityConverter}}" /&gt;
          &lt;TextBox Name="txtUserEntry" Background="Transparent" BorderBrush="{StaticResource brushWatermarkBorder}" /&gt;
      &lt;/Grid&gt;
  </code></pre>
  
  <p>How can I apply this for a PasswordBox?</p>