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RangeSegmentColorizer.LegendTextPattern Property

Gets or sets the pattern to format the text that the legend shows for a color range.

Namespace: DevExpress.Xpf.Charts

Assembly: DevExpress.Xpf.Charts.v19.1.dll

Declaration

public string LegendTextPattern { get; set; }

Property Value

Type Description
String

A string that is the text pattern.

Remarks

The RangeSegmentColorizer.RangeStops collection neighbor values define the start and end values for the colorizer legend items.

The LegendItemPattern can contain regular text (displayed as is) and value placeholders in braces. To format numeric values, you can apply Format Specifiers. Use a colon to separate a placeholder and its format specifier.

The following table contains the available placeholders:

Placeholder Description
{V1} Displays the start range value.
{V2} Displays the end range value.

Examples

This example demonstrates how to use the RangeSegmentColorizer to color a line series by its segments.

<dxc:ChartControl>
    <!-- The title settings are skipped. -->
    <dxc:ChartControl.Legends>
        <dxc:Legend HorizontalPosition="RightOutside" 
                    VerticalPosition="Top" 
                    ReverseItems="True"/>
    </dxc:ChartControl.Legends>
    <dxc:XYDiagram2D>
        <!-- The axis settings are skipped. -->
        <dxc:LineSeries2D  DisplayName="Temperature" 
                           DataSource="{Binding}" 
                           ArgumentDataMember="Date" 
                           ValueDataMember="Temperature">
            <dxc:LineSeries2D.SegmentColorizer>
                <dxc:RangeSegmentColorizer RangeStops="-40 -30 -20 -15 -10 -5 0 5 10 15 20 30" 
                                           LegendTextPattern="{}{V1:F0}°C — {V2:F0}°C"
                                           ShowInLegend="True">
                    <dxc:RangeSegmentColorizer.Palette>
                        <dxc:CustomPalette>
                            <dxc:CustomPalette.Colors>
                                <Color>DarkBlue</Color>
                                <Color>SteelBlue</Color>
                                <Color>LightBlue</Color>
                                <Color>Yellow</Color>
                                <Color>OrangeRed</Color>
                            </dxc:CustomPalette.Colors>
                        </dxc:CustomPalette>    
                    </dxc:RangeSegmentColorizer.Palette>         
                </dxc:RangeSegmentColorizer>
            </dxc:LineSeries2D.SegmentColorizer>
        </dxc:LineSeries2D>
    </dxc:XYDiagram2D>
</dxc:ChartControl>
See Also