title: RDLC grouping rows
body: <p>I'm trying to do a rdlc table/matrix gruoping by Id.
  I have a DataSet which is returning:</p>
  
  <p>Id | name | price | quantity | subtotal | comment</p>
  
  <p>The comment column is optional,also it can have multiple comments per Id so it could return duplicate rows but with different comment column.</p>
  
  <p>Then I want to display in a Table or matrix the data like this</p>
  
  <p>Id | name | quantity | price | subtotal</p>
  
  <pre><code>                   comment
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/bEKiq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/bEKiq.png" alt="enter image description here"></a></p>
  
  <p>I mean adding additional rows per comment.
  Is it possible to display rows in that format?
  If so, What is the best way to achieve it?</p>