Chart for WPF - How to Select a Series Point Marker Based on a Point Argument

This example shows how to select a point marker type depending on a point argument.

• Create a subclass of DataTemplateSelector, override the SelectTemplate method to create a custom date template selector, and provide logic to select an appropriate marker type.

• Use ContentControl to specify the CustomMarker2DModel.PointTemplate property.

• Assign the custom data template selector object to the ContentControl.ContentTemplateSelector property.

<dxc:ChartControl>
    <dxc:XYDiagram2D EnableAxisXNavigation="True">
        <dxc:LineSeries2D
            DataSource="{Binding DataItems, RelativeSource={RelativeSource AncestorType=Window, Mode=FindAncestor}}"
            MarkerVisible="True"
            ArgumentDataMember="DateTimeStamp"
            ValueDataMember="Value">
            <dxc:LineSeries2D.MarkerModel>
                <dxc:CustomMarker2DModel>
                    <dxc:CustomMarker2DModel.PointTemplate>
                        <ControlTemplate>
                            <ContentControl
                                Content="{Binding SeriesPoint}"
                                ContentTemplateSelector="{StaticResource myDataTemplateSelector}"/>
                        </ControlTemplate>
                    </dxc:CustomMarker2DModel.PointTemplate>
                </dxc:CustomMarker2DModel>
            </dxc:LineSeries2D.MarkerModel>
        </dxc:LineSeries2D>
    </dxc:XYDiagram2D>
</dxc:ChartControl>

Files to Review

• MainWindow.xaml (VB: MainWindow.xaml)
• MainWindow.xaml.cs (VB: MainWindow.xaml)

More Examples

• Chart for WPF - How to Create Custom Series Point Markers

Documentation

• Series Points
• Series and Marker Models

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