Hi Dan,
Thanks for using Syncfusion Products.
Essential Chart support Unlimited number of points and series.
Please have a look at the attached sample.
http://websamples.syncfusion.com/samples/Chart.Windows/F62132/main.htmIn the above sample, the number of points to be displayed in the Chart can be chosen using NumariUpDown box displayed in the form at run time.
Please let me know if you have any more queries.
Regards,
Rashidha.