TreeMapPaletteColorizerBase.LegendItemPattern Property

Gets or sets the format pattern that is applied to a treemap legend item’s text.

Namespace: DevExpress.Xpf.TreeMap

Assembly: DevExpress.Xpf.TreeMap.v23.2.dll

NuGet Package: DevExpress.Wpf.TreeMap

Declaration

C#

public string LegendItemPattern { get; set; }

VB.NET

Public Property LegendItemPattern As String

Property Value

Type	Description
String	A string that formats legend item text.

Remarks

Patterns can contain regular text (displayed as is) and value placeholders in braces. To format numeric and date/time 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
{L}	Displays the group name.
{V}	Displays the total value of group items.
{V1}	Displays the first value of the range for a TreeMapRangeColorizer.
{V2}	Displays the second value of the range for a TreeMapRangeColorizer.

If a pattern starts with a placeholder in the XAML markup, insert empty brackets into the beginning of the pattern as follows: “{}{L}: {V}”. For more information, refer to the following topic: {} Escape sequence / markup extension.

Example: How to Format Legend Item Text in a Treemap

This example shows how to color treemap items based on value ranges and format the legend item text generated for each colorizer range.

XAML

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:TreemapExample"
        xmlns:dxtm="http://schemas.devexpress.com/winfx/2008/xaml/treemap" 
        x:Class="TreemapExample.MainWindow"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <dxtm:TreeMapControl x:Name="treemap">
            <dxtm:TreeMapControl.Colorizer>
                <dxtm:TreeMapRangeColorizer RangeStops="0, 59, 95, 300, 1300, 2500" 
                                            LegendItemPattern="{}{V1:f0} .. {V2:f0}">
                    <dxtm:TreeMapRangeColorizer.Palette>
                        <dxtm:CustomPalette>
                            <Color>#D8610D</Color>
                            <Color>#EF802B</Color>
                            <Color>#FF9C11</Color>
                            <Color>#FFBB32</Color>
                            <Color>#FFCD7C</Color>
                        </dxtm:CustomPalette>
                    </dxtm:TreeMapRangeColorizer.Palette>
                </dxtm:TreeMapRangeColorizer>
            </dxtm:TreeMapControl.Colorizer>                
            <dxtm:TreeMapControl.Legend>
                <dxtm:Legend HorizontalPosition="Center" VerticalPosition="BottomOutside" 
                              Margin="10" Height="80"  Padding="4">
                    <dxtm:Legend.Title>
                        <dxtm:LegendTitle Content="Assets, $B" FontSize="14" FontWeight="Bold"/>
                    </dxtm:Legend.Title>
                </dxtm:Legend>
            </dxtm:TreeMapControl.Legend>
            <!-- Data binding settings are skipped. -->
        </dxtm:TreeMapControl>
    </Grid>
</Window>