TCustomChart.OnGetLegendText
TCustomChart
property OnGetLegendText: TOnGetLegendText;
Unit
Chart
Description
You can use this event to override the text strings that TChartLegend paints.
TChartLegend has two different modes (or LegendStyle):
lsSeries Legend contains Series Names or Titles.
lsValues Legend contains a Series values or labels.
If the LegendStyle is lsAuto, TChartLegend paints in lsSeries mode if more than one Active Series exists in the Chart.