title: How to get data of grouped column in Angular UI Grid
body: <p>How can we get the data of all rows in a grouped column in Angular UI Grid?</p>
  <p>For example, in the official <a href="http://ui-grid.info/docs/#/tutorial/209_grouping" rel="nofollow noreferrer">Grouping Tutorial</a>, how to get all the company names in the 'Company' column.</p>
  <p>I was able to get the aggregated value of grouped row by using the following code:</p>
  <pre><code>for (var i = 0, l = $scope.gridRows.length; i&lt;l; i += 1){
      console.log($scope.gridRows[i].treeNode.aggregations[COLUMN_INDEX].value);
  }
  </code></pre>
  <p>But doesn't work for the 'Company' column, since their is no aggregate value for that column, and what I want is all the company's names.</p>
  <p><img src="https://i.stack.imgur.com/moemP.png" alt="enter image description here" /></p>
  <p>Thank you in advance for your time.</p>