TdxCustomChartControl.Palette Property

Specifies the palette applied to Chart control content.

Declaration

delphi

property Palette: TdxChartPalette read; write;

Property Value

Type	Description
TdxChartPalette

The active standard or custom chart palette.

You can assign nil (in Delphi) or nullptr (in C++Builder) to apply the default palette to the Chart control.

Remarks

Use the Palette property to apply a predefined or custom palette to the Chart control.

If the active palette does not have enough explicitly defined colors to draw all affected series or series values differently, the Chart control generates interpolated colors based on existing colors.

Design-Time Palette Selection

You can click the drop-down button for the Palette property in the Object Inspector and select any palette in the displayed list.

The palette list includes all predefined and custom palettes.

Code Examples

Assign a Predefined Palette

The following code example applies the predefined palette Nature Colors to the Chart control:

Delphi
C++

delphi

dxChartControl1.Palette := TdxChartStandardPaletteRepository.FindPalette('Nature Colors');

cpp

dxChartControl1->Palette = TdxChartStandardPaletteRepository::FindPalette("Nature Colors");

Create and Assign a Custom Palette

The following code example creates a user palette with three colors and applies the palette to a Chart control:

Delphi
C++

delphi

var
  AChartPalette: TdxChartUserPalette;
begin
  AChartPalette := dxChartPaletteRepository1.CreateItem;
  AChartPalette.Name := 'My Palette 1'; // Assigns a unique palette name
  AChartPalette.Count := 3; // Sets the size of the palette item array
  AChartPalette.Items[0] := TdxChartPaletteItem.Create(TdxAlphaColors.Red);
  AChartPalette.Items[1] := TdxChartPaletteItem.Create(TdxAlphaColors.Green);
  AChartPalette.Items[2] := TdxChartPaletteItem.Create(TdxAlphaColors.Blue);
  dxChartControl1.Palette := AChartPalette;
end;

cpp

// ...
  TdxChartUserPalette *AChartPalette;
  // ...
  AChartPalette = dxChartPaletteRepository1->CreateItem();
  AChartPalette->Name = "My Palette 1"; // Assigns a unique palette name
  AChartPalette->Count = 3; // Sets the size of the palette item array
  AChartPalette->Items[0] = TdxChartPaletteItem(TdxAlphaColors::Red);
  AChartPalette->Items[1] = TdxChartPaletteItem(TdxAlphaColors::Green);
  AChartPalette->Items[2] = TdxChartPaletteItem(TdxAlphaColors::Blue);
  dxChartControl1->Palette = AChartPalette;

Default Value

The Palette property’s default value is TdxChartStandardPaletteRepository.Default.