Tips and Frequently Asked Questions
Updating Chart at runtime
When updating the chart component at runtime it is important to "tell" the chart to update itself.
Whenever you change properties, or add/remove points the chart will not be updated.
This is because the chart will be repainted over and over again every time you change a property.
This would cause a slow performance.
To update the chart at runtime, after you change properties, you must use the BeginUpdate / EndUpdate methods.
Sample: Updating a series of points at runtime
procedure TForm1.Button1Click(Sender: TObject);
begin
AdvChartView1.BeginUpdate;
with AdvChartView1.Panes[0].Series[0] do
begin
Points[0].SingleValue := 100;
Points[1].SingleValue := 50;
Points[2].SingleValue := 20;
Points[3].SingleValue := 30;
Points[4].SingleValue := 150;
Points[5].SingleValue := 160;
end;
AdvChartView1.EndUpdate;
end;Pricing
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