title: a programmatic way to add vertical and/or horizontal line to the chart?
body: <p>I wrote this up to showcase how to create 2 charts on the same worksheet programmatically.</p>
  
  <p><a href="http://blog.oppoin.com/cookbooks/buttons-forms-and-charts/lesson-25a-2-datasets-of-10-data-points-each-draw-2-graphs-in-2-charts/" rel="nofollow">http://blog.oppoin.com/cookbooks/buttons-forms-and-charts/lesson-25a-2-datasets-of-10-data-points-each-draw-2-graphs-in-2-charts/</a></p>
  
  <p>I received a request from a student to show how I can also add a vertical or a horizontal line programmatically to the charts.</p>
  
  <p>I googled around but I can only find manual ways as described by John Peltier.</p>
  
  <p>Was wondering if there is a programmatical way to do this.</p>