title: c# winforms show a 'totals' graph behing segmented category data
body: <p>I'm trying to put together a graph, that has sub category column graphs drawn infront of a total column graph.</p>
  <p>Something like this</p>
  <p><a href="https://i.stack.imgur.com/858pg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/858pg.png" alt="enter image description here" /></a></p>
  <p>Anyone offer any ideas how to approach this, I have tried a few failed ways.</p>
  <p>I have tried to make two ChartAreas in the same Chart, but they rendered the graphs separately on top of each other</p>
  <p><a href="https://i.stack.imgur.com/QxY4b.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/QxY4b.png" alt="enter image description here" /></a></p>
  <p>I've also tried having 2 seperate charts overlapping each other and setting the background to transparent. That appears to see through both graphs.</p>
  <pre><code>chart2.BackColor = Color.Transparent;
  chart2Area1.BackColor = Color.Transparent;
  </code></pre>
  <p><a href="https://i.stack.imgur.com/j2TCK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/j2TCK.png" alt="enter image description here" /></a></p>