title: Compare old and new value in DataGridView cell
body: <p>How to change DataGridView cell ForeColor based on whether new cell value is > or &lt; than current/old cell value?  Is there an event which passes the new value before the current is changed, so I can compare them?  </p>
  
  <p>The data is updated from underlying source, and may be bound by BindingSource. </p>