title: Set textblock text which is inside user control multiline
body: <p>I have a user control which contains a textblock with word wrap.</p>
  
  <pre><code>&lt;UserControl&gt;
    &lt;StackPanel&gt;
      &lt;TextBlock MaxWidth="500"
                 Margin="2"
                 Text="{Binding HintHeader}"
                 TextWrapping="Wrap" /&gt;
  
      &lt;TextBlock MaxWidth="500"
                 Margin="2"
                 Text="{Binding HintBody}"
                 TextWrapping="Wrap" /&gt;
    &lt;/StackPanel&gt;
  &lt;/UserControl&gt;
  </code></pre>
  
  <p>Hintbody is dependency property of user control. I can use the control in other place fine as:</p>
  
  <pre><code>&lt;cntrls:HintButton x:Name="hint"
                     Width="24"
                     Height="24"
                     Margin="85,68,0,0"
                     HintHeader="This is an header"
                     HintBody="This is an hint"/&gt;
  </code></pre>
  
  <p>Everything works fine. But I want set a multiline text to the textblock (HintBody).
  Setting Hintbody property using "\r\n" from code behind works fine. But I want to set the same from XAML. Something like.</p>
  
  <pre><code>&lt;cntrls:HintButton x:Name="hint"
                         Width="24"
                         Height="24"
                         Margin="85,68,0,0"
                         HintHeader="Hint Header" &gt;
        &lt;cntrls:HintButton.HintBody&gt;
          This is a multiline hint body.
          &lt;LineBreak /&gt;
          This is a multiline hint body.
        &lt;/cntrls:HintButton.HintBody&gt;      
      &lt;/cntrls:HintButton&gt;
  </code></pre>