title: Insert break in data series of C# chart
body: <p>I have several data series plotted on a chart. This is logged data spanning several hours. However, there is occasionally a period of 30 minutes where no data is logged. This causes the chart to draw a line between the last sample before logging stopped and the first sample when logging resumes.</p>
  
  <p>This can appear quite misleading where sudden jumps in data appear. It is preferable to show that there is not logged data in this period.</p>
  
  <p>Is there any way to tell the series not to plot data between two points? So it would still be one series, but with a break in the middle.</p>