Performing Batch Updates
You can perform batch updates without refreshing the chart after each change by entering your code inside the BeginUpdate()/EndUpdate() methods like the following:
C1Chart1.BeginUpdate()
' change or format the chart, add data etc.
...
C1Chart1.EndUpdate()
•C#
c1Chart1.BeginUpdate();
// change or format the chart, add data etc.
...
c1Chart1.EndUpdate();