title: A Multi-Line TextBox with Top Vertical Alignment
body: <p>I'm trying to create a multi-line <code>TextBox</code> to allow the user to enter text.</p>
  
  <p>I have:</p>
  
  <pre><code>&lt;TextBox Grid.Row="0"
      Height="107"
      ScrollViewer.VerticalScrollBarVisibility="Auto"
      ScrollViewer.HorizontalScrollBarVisibility="Disabled"
      AcceptsReturn="True"
      HorizontalAlignment="Left"
      Margin="164,80,0,0"
      VerticalAlignment="Top"
      Width="237"
      Text="{Binding Description, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MaxLength="300" 
      TextWrapping="Wrap"/&gt;
  </code></pre>
  
  <p>However the text is centered vertically and I can't seem to find a <code>TextAlignment</code> property for vertical alignment.</p>
  
  <p>I subsequently wrapped the textbox in a border and removed the <code>Height</code> specification, however when I click in the area below the textbox (but within the border) I would like the textbox to get focus and I can't seem to find a way to do this.</p>
  
  <p>Has anyone come across this issue before and found a solution?</p>