How to add multiple legend items in scroll viewer of WPF Chart (SfChart)?

Description:

This article describes how to add multiple legend items inside the scrollbar in WPF Chart (SfChart). Legend items represent the label values of chart series. When a large number of series are added to the chart, some legend items may be hidden from view. To address this, SfChart allows the legend to be placed inside a scrollbar, enabling users to scroll and view all items.

Solution:

If you want to add multiple legend items inside any container such as scroll viewer, you need to define the control template for the legends in WPF Chart (SfChart).

[XAML]

<!—Adding ScrollViewer for Legend items-->
<chart:SfChart x:Name="sfchart" Margin="10" >
    <chart:SfChart.Legend>
        <chart:ChartLegend  DockPosition="Top">
            <chart:ChartLegend.Template>
                <ControlTemplate>
                    <ScrollViewer Margin="30" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Auto">
                        <ItemsPresenter>
                        </ItemsPresenter>
                    </ScrollViewer>
                </ControlTemplate>
            </chart:ChartLegend.Template>
        </chart:ChartLegend>
    </chart:SfChart.Legend>
</chart:SfChart>

 Output

Conclusion

I hope you enjoyed learning how to add multiple legend items in scroll viewer of WPF Chart (SfChart).

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