title: How to extract date on X axis from a point on chart [mschart]
body: <p>X axis type is <code>DateTime</code>. I want to know how to extract original <code>DateTime</code> value from the double value on the x axis corresponding to the point  in my series?</p>
  
  <p>I can add point with </p>
  
  <pre><code>point-&gt;SetValueXY(xdateTime,yvalue);
  chart1-&gt;Series[0]-Add(point);
  </code></pre>