title: Plotting data with gaps in ZedGraph using nullable types / null values
body: <p>This question is very similar: <a href="https://stackoverflow.com/questions/5154848/how-to-miss-points-in-a-zedgraph-line-graph-in-c">How to miss points in a zedgraph line graph in c</a>.</p>
  
  <p>I am pulling data from SQL and plotting it using ZedGraph, but I am using nullable types (<code>int?</code>, <code>float?</code> etc.) and would like to create gaps in the plot wherever a null value exists.</p>
  
  <p>Is there a way to have ZedGraph handle these null values, or do I need to convert them all to <code>double.NaN</code>?</p>