How to: Assign a Secondary Y-axis to a Series

• Apr 15, 2018

This example demonstrates how to assign a secondary Y-axis to a series and uses the following classes and properties:

Symbol	Description
XYDiagram2D.SecondaryAxesY	Gets the collection of secondary Y-axes.
SecondaryAxisY2D	Represents the secondary Y-axis within a 2D chart type.
XYSeries2D.AxisY	Specifies the Y-axis (or its View Model) that measures a series.

MainWindow.xaml

<dxc:XYDiagram2D.SecondaryAxesY>
    <dxc:SecondaryAxisY2D x:Name="percentageAxisY" 
                          Brush="#FFC0504D">
        <dxc:SecondaryAxisY2D.WholeRange>
            <dxc:Range dxc:AxisY2D.AlwaysShowZeroLevel="False" MinValue="-0.8" MaxValue="0.8"/>
        </dxc:SecondaryAxisY2D.WholeRange>
        <dxc:SecondaryAxisY2D.NumericScaleOptions>
            <dxc:ContinuousNumericScaleOptions AutoGrid="False" GridSpacing="0.4"/>
        </dxc:SecondaryAxisY2D.NumericScaleOptions>
    </dxc:SecondaryAxisY2D>
</dxc:XYDiagram2D.SecondaryAxesY>
<dxc:LineSeries2D DisplayName="Rate of Change" 
                  ArgumentDataMember="Date" ValueDataMember="ChangeRate" 
                  MarkerVisible="True"
                  AxisY="{Binding ElementName=percentageAxisY}"/>