QualitativeConstantLine Class

The vertical straight line that passes through the chart and indicates a qualitative x-axis’s value.

Namespace: DevExpress.XamarinForms.Charts

Assembly: DevExpress.XamarinForms.Charts.dll

Declaration

public class QualitativeConstantLine :
    ConstantLineBase

The following image demonstrates how the Qualitative Constant Line looks:

Date-Time Constant Line Sample

Each axis can have any number of constant lines. A qualitative axis (QualitativeAxisX) holds its constant lines in the QualitativeConstantLineCollection collection which the QualitativeAxisX.ConstantLines property returns.

The following properties allow you to define constant line settings:

Property	Description
AxisValue	Gets or sets the constant line position along the axis.
ShowBehind	Specifies whether the constant line is displayed behind series.
VisibleInLegend	Indicates whether the constant line is shown in the chart legend.
LegendText	Gets or sets the text that identifies the constant line in the chart legend.
Title	Gets or sets settings of the constant line title.
Style	Gets or sets the constant line appearance settings.