Active Series

[McMClark]

I am using Delphi VCL with TeeChart 7. At runtime, I need to know if a user has clicked a series off from the DBChart Legend. How can I get the information? Is the list of active series kept in a collection that I can access?

[Narcís]

Hi McMClark,

Yes, you can use OnClickLegend event like this:

Code: Select all

procedure TForm1.DBChart1ClickLegend(Sender: TCustomChart;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
var SeriesIndex: Integer;
begin
  SeriesIndex := DBChart1.Legend.Clicked(X,Y);

  if SeriesIndex <> -1 then
    DBChart1.Title.Text[0] := 'Series ' + IntToStr(SeriesIndex) + ' selected'
  else
    DBChart1.Title.Text[0] := 'No series selected';
end;

Hope this helps!