title: How do I graph multiple columns on the Y-axis? (MS Chart Controls)
body: <p>Trying to follow this example:<br>
  <a href="http://weblogs.asp.net/dwahlin/archive/2008/11/25/getting-started-with-the-asp-net-3-5-chart-control.aspx" rel="nofollow">http://weblogs.asp.net/dwahlin/archive/2008/11/25/getting-started-with-the-asp-net-3-5-chart-control.aspx</a></p>
  
  <p>I have a database with 4 columns, 3 of the columns are int (1-10) and the other is a "DateTime". I am trying to graph the 3 columns vs the DateTime(X-axis) on one line chart.</p>
  
  <p>To add more than one y axis value I go to the Series property -> YValueMembers (notice the plural) and enter my 3 columns of the database (followed by commas) that I want on the Y axis.....but doesn't seem to work.</p>
  
  <p>I get a run time error saying only 1 column is allowed on the Y axis.  </p>
  
  <blockquote>
    <p>Data points insertion error. Only 1 Y
    values can be set for this data
    series.</p>
  </blockquote>
  
  <p>How do I get all 3 columns vs the 4th column on one line chart?</p>
  
  <p>Thanks!</p>