title: WPF: using RichTextBox / FlowDocument in ToolTip
body: <p>I would like to use RichTextDocument / Flow document as content of tooltip to get more formatting features in tooltip. But some strange results happen:</p>
  
  <ul>
  <li><p>If use RichTextBox inside tooltip</p>
  
  <pre><code>&lt;Label Name="sbLabelActions" Content="{Binding ActionsCount}" Style="{StaticResource ResourceKey=StatusBarLabelWithText}" MinWidth="40" &gt;
      &lt;Label.ToolTip&gt;
          &lt;RichTextBox&gt;
              &lt;FlowDocument&gt;&lt;Paragraph&gt;Bla-bla&lt;/Paragraph&gt;&lt;/FlowDocument&gt;
          &lt;/RichTextBox&gt;
      &lt;/Label.ToolTip&gt;
  &lt;/Label&gt;
  </code></pre></li>
  </ul>
  
  <p><img src="https://i.stack.imgur.com/fwYfP.png" alt="enter image description here"></p>
  
  <ul>
  <li><p>If use Flow document directly inside tooltip</p>
  
  <pre><code>&lt;Label Name="sbLabelActions" Content="{Binding ActionsCount}" Style="{StaticResource ResourceKey=StatusBarLabelWithText}" MinWidth="40" &gt;
      &lt;Label.ToolTip&gt;
              &lt;FlowDocument&gt;&lt;Paragraph&gt;Bla-bla&lt;/Paragraph&gt;&lt;/FlowDocument&gt;
      &lt;/Label.ToolTip&gt;
  &lt;/Label&gt;
  </code></pre></li>
  </ul>
  
  <p><img src="https://i.stack.imgur.com/qEYKz.png" alt="enter image description here"></p>
  
  <p>Could you please suggest correct way? How to disable that BIG preview window? Maybe flow document usage is not the best way? I realize that I can just add StackPanel and fill with TextBlocks, but it's instresting now what's wrong with FlowDocument? :)</p>