title: How to change the amount of time a tooltip is displayed for in a UWP app?
body: <p>In my app, I've created an Ellipse and defined the ToolTipService for it.  The tooltip is displaying fine, except that I'd like it to show for a longer period of time (looks like it currently defaults to disappearing after 5 seconds).  There doesn't seem to be any properties on the ToolTipService such as ShowDuration (eg. in Silverlight XAML there is ToolTipService.ShowDuration Attached Property).</p>
  
  <p>How can I change the duration of the tooltip display? (Below is code snippet)</p>
  
  <pre><code>&lt;Ellipse Height="15" Width="15" Fill="Blue" HorizontalAlignment="Center" VerticalAlignment="Center" &gt;
      &lt;ToolTipService.ToolTip&gt;
          &lt;ToolTip Template="{StaticResource MainToolTipTemplate}" Background="Black" Opacity="50" &gt;&lt;/ToolTip&gt;
      &lt;/ToolTipService.ToolTip&gt;
  &lt;/Ellipse&gt;
  </code></pre>