ConstantLineBase.LegendText Property

Gets or sets the text that identifies the constant line in the chart legend.

Namespace: DevExpress.XamarinForms.Charts

Assembly: DevExpress.XamarinForms.Charts.dll

Declaration

public string LegendText { get; set; }

Property Value

Type	Description
String	The text that the chart legend uses as a constant line’s display name.

Remarks

Use the LegendText property to specify the text that will identify the current constant line in a legend.

A chart legend does not show constant lines by default. To include a constant line description in a legend, set the ConstantLineBase.VisibleInLegend to true.

Example

This example shows how to add a constant line to a numeric y-axis, customize its appearance and show it in the chart legend. To do this, add a NumericConstantLine object with the specified properties to the NumericAxisY.ConstantLines collection.

XAML

<dxc:ChartView>
  <dxc:ChartView.AxisY>
      <dxc:NumericAxisY>
          <dxc:NumericAxisY.ConstantLines>
              <dxc:NumericConstantLine AxisValue="100" ShowBehind="False" 
                                       VisibleInLegend="True" LegendText="Constant Line Sample">
                  <!-- Customize the constant line title. -->
                  <dxc:NumericConstantLine.Title>
                      <dxc:ConstantLineTitle Text="Constant Line Sample" ShowBelowLine="True" Alignment="Far">
                          <dxc:ConstantLineTitle.Style>
                              <dxc:TitleStyle>
                                  <dxc:TitleStyle.TextStyle>
                                      <dxc:TextStyle Color="DarkBlue" Size="24"/>
                                  </dxc:TitleStyle.TextStyle>
                              </dxc:TitleStyle>
                          </dxc:ConstantLineTitle.Style>
                      </dxc:ConstantLineTitle>
                  </dxc:NumericConstantLine.Title>
                  <!-- Customize the constant line appearance. -->
                  <dxc:NumericConstantLine.Style>
                      <dxc:ConstantLineStyle Thickness="3"/>
                  </dxc:NumericConstantLine.Style>
              </dxc:NumericConstantLine>
          </dxc:NumericAxisY.ConstantLines>
      </dxc:NumericAxisY>
  </dxc:ChartView.AxisY>
</dxc:ChartView>