title: Handsontable - Required Field
body: <p>I have <code>handsontable</code> and I don't know what event that I need to validate a specific cell if its empty or not.</p>
  
  <p>technically I have specific cell to be a required cell, if the cell is empty then it will call a callback or return false after executing a post. </p>
  
  <p>I have used <code>beforeChange()</code> function before and I think it is not appropriate event for the issue.</p>
  
  <p>Here's an <a href="http://i.imgur.com/c7at1zw.jpg" rel="nofollow">image link</a>.</p>