title: Merging cells in WPF DataGrid vertically
body: <p>I want to make a <code>DataGrid</code> in WPF, where some of the cells will "merge together", if they are alike.</p>
  
  <p>Example:</p>
  
  <pre><code>+---------+------+-----+
  | Country | Name | Age |
  +---------+------+-----+
  |         | Lisa | 24  |
  +         +------+-----+
  | Danmark |  Per | 32  |
  +         +------+-----+
  |         | Hans | 33  |
  +---------+------+-----+
  | Germany | Mick | 22  |
  +---------+------+-----+
  </code></pre>
  
  <p>Is there any way to achieve this using <code>DataGrid</code> using binding?</p>
  
  <p>Thanks a lot in advance.</p>