TdxChartCustomAxis.ValueLabels Property

Provides access to axis value label appearance and behavior settings.

Declaration

delphi

property ValueLabels: TdxChartAxisValueLabels read; write;

Property Value

Type	Description
TdxChartAxisValueLabels

Stores axis value label appearance and behavior settings.

Remarks

Value labels mark values on an axis.

Value Label Settings

You can use Ticks.LabelAlignment, ValueLabels.Position, and ValueLabels.Appearance properties to position axis value labels in a diagram and customize their appearance.

Refer to the TdxChartAxisValueLabels class description for information on all available options.

Tip

You can handle the parent diagram‘s OnGetAxisValueLabelDrawParameters event to customize individual axis value labels.

Code Example: Customize Axis Appearance

The following code example applies identical value label appearance settings to the main X and Y axes in a diagram:

Delphi
C++

delphi

var
  ADiagram: TdxChartXYDiagram;
begin
  if dxChartControl1.DiagramCount = 0 then Exit;
  ADiagram := dxChartControl1.Diagrams[0] as TdxChartXYDiagram;
  ADiagram.BeginUpdate;
  try
    ADiagram.Axes.AxisX.ValueLabels.Angle := 45;
    ADiagram.Axes.AxisX.ValueLabels.Appearance.FontOptions.Style := [fsBold, fsItalic];
    ADiagram.Axes.AxisX.ValueLabels.Appearance.TextColor := TdxAlphaColors.Gray;
    ADiagram.Axes.AxisY.Assign(ADiagram.Axes.AxisX); // Copies settings between axes
    ADiagram.Axes.AxisY.Interlaced := False; // Restores the previous Interlaced property value
  finally
    ADiagram.EndUpdate;
  end;
end;

cpp

TdxChartXYDiagram *ADiagram;
  // ...
  if(dxChartControl1->DiagramCount == 0) { return; }
  ADiagram = dynamic_cast<TdxChartXYDiagram*>(dxChartControl1->Diagrams[0]);
  ADiagram->BeginUpdate();
  try
  {
    ADiagram->Axes->AxisX->ValueLabels->Angle = 45;
    ADiagram->Axes->AxisX->ValueLabels->Appearance->FontOptions->Style = TFontStyles() << fsBold, << fsItalic;
    ADiagram->Axes->AxisX->ValueLabels->Appearance->TextColor = TdxAlphaColors::Gray;
    ADiagram->Axes->AxisY->Assign(ADiagram->Axes->AxisX); // Copies settings between axes
    ADiagram->Axes->AxisY->Interlaced = false; // Restores the previous Interlaced property value
  }
  __finally
  {
    ADiagram->EndUpdate();
  }