title: How to get column footer data in Angular UI-Grid?
body: <p>For example, in this <a href="http://ui-grid.info/docs/#!/tutorial/Tutorial:%20105%20Footer" rel="nofollow noreferrer">tutorial</a>, if there is any way to get the data in the column footer? I'd like to present the total numbers in somewhere else.
  <img src="https://i.stack.imgur.com/tz79h.png" alt="enter image description here">
  Thanks in advance.</p>