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TRSChartValues.CustomSort(TValuesSortCompare) Method

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Sorts the current values collection using the supplied comparison function. Use CustomSort when you want to perform a special type of sorting on the values collection. You need to define a function based on the FMX.RS.ChartPanel.TValuesSortCompare signature.

If you want to do normal sorting, just call the Sort method.

Namespace: FMX.RS.ChartPanel

Delphi

public
procedure CustomSort(SCompare: TValuesSortCompare); virtual;

Parameters

SCompare

Type: TValuesSortCompare

The following code sorts a shape chart from shapes with the smallest (width * height) area to largest area:

Delphi

begin
   RSShapeChart1.Values.CustomSort(CompareShapeValues);
end;

function CompareShapeValues(List: TRSChartValues; Index1, Index2: Integer): Integer;
begin
   with List as TRSShapeChartValues do
      if (Items[Index1].Width * Items[Index1].Height) < (Items[Index2].Width * Items[Index2].Height) then
         result := -1
      else if (Items[Index1].Width * Items[Index1].Height) > (Items[Index2].Width * Items[Index2].Height) then
           result := 1
      else
          result := 0;
end;

Reference

•	FMX.RS.ChartPanel.TRSChartValues.Sort

•	FMX.RS.ChartPanel.TValuesSortCompare

•	FMX.RS.ChartPanel.TRSChartValues.Items[Integer]

•	FMX.RS.ChartPanel.TRSChartValue

•	TRSChartValues

•	FMX.RS.ChartPanel

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