[solved] TChartListBox - unwanted series

[Nicole]

There is a series, which helps to see, if another series is positive or negative.
It is just a line of zero.
It's ".active" is set by the another's .active.

it is called Nulllinie = zero line.

I chose, not to show it in my legend.
How not to show it neither in the TChartListBox list?

see attach

[wp]

Write a handler to the OnAddSeries event of the ChartListbox and set the Skip parameter for the Null series to true:

Untested:

Code: Pascal  [Select][+][-]

1. procedure TForm1.ChartListbox1AddSeries(ASender: TChartListbox;
2.   ASeries: TCustomChartSeries; AItems: TChartLegendItems; var ASkip: Boolean);
3. begin
4.   if ASeries.Name = 'Nulllinie' then ASkip := true;
5. end;

[Nicole]

Wow, thank you so very much for the solution, it worked at sudden.
I would not have found the out by myself ever.

[wp]

RTFM: https://wiki.lazarus.freepascal.org/TAChart_documentation#Chart_listbox