title: Selectively hiding series in a C# chart
body: <p>Lets say I have a chart with 2 series on it.  Then for each series, I have a checkbox to say whether I want to see them or not.  Assume that I originally plot both, and afterwards, wanted to hide either of them.  What is the best way to do this?</p>
  
  <p>I know I could just <code>Clear()</code> it and then <code>AddXY()</code> them back in, but is there a faster way to do it?</p>
  
  <p>My attempted ideas:</p>
  
  <p><BR>1.  Set a visibility property to true/false depending on checkbox.
  <BR>There is No visibility Property
  <BR><BR>2.  Copy Points Collection to a variable, clear, and put back in.
  <BR><code>Series[].Points</code> is read-only
  <BR><BR>3.  Copy Series to a variable, clear the points, and put back in.
  <BR>Apparently it stores the Series as a reference when I try this, and I cannot find a copy command.</p>
  
  <p>So I am apparently going about this the wrong way.  How would you dynamically allow chart to have different series hidden?</p>