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

• Apr 15, 2018

This example demonstrates how to assign a pane and a secondary X-axis to a series. The example uses the following classes and properties:

Symbol	Description
XYDiagram2D.SecondaryAxesX	Gets the collection of secondary X-axes.
SecondaryAxisX2D	A secondary X-axis in the Chart Control’s Cartesian Diagram.
XYSeries2D.AxisX	Specifies the X-axis (or its View Model) that measures the series.
XYDiagram2D.Panes	Provides access to the diagram‘s pane collection.
Pane	An individual pane within the Chart Control’s Cartesian Diagram.
XYSeries2D.Pane	Specifies the pane (or its View Model) on which the series is plotted.

MainWindow.xaml

<dxc:XYDiagram2D.Panes>
    <dxc:Pane x:Name="secondPane" Margin="0,4,0,0"/>
</dxc:XYDiagram2D.Panes>
<dxc:XYDiagram2D.SecondaryAxesX>
    <dxc:SecondaryAxisX2D x:Name="secondAxisX" Alignment="Near">
        <dxc:SecondaryAxisX2D.QualitativeScaleOptions>
            <dxc:QualitativeScaleOptions AutoGrid="False" AggregateFunction="Sum"/>
        </dxc:SecondaryAxisX2D.QualitativeScaleOptions>
    </dxc:SecondaryAxisX2D>
</dxc:XYDiagram2D.SecondaryAxesX>
    <dxc:BarSideBySideSeries2D x:Name="secondSeries" DisplayName="Meat/Poultry"
                               ArgumentDataMember="ProductName" ValueDataMember="ExtendedPrice" FilterString="[CategoryName] = 'Meat/Poultry'"
                               Pane="{Binding ElementName=secondPane}" AxisX="{Binding ElementName=secondAxisX}" Legend="{Binding ElementName=secondLegend}"/>