A newer version of this page is available. Switch to the current version.

TreeMapHierarchicalDataAdapter Class

A data adapter that allows you to provide hierarchical data to the Tree Map.

Namespace: DevExpress.Xpf.TreeMap

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

Declaration

public class TreeMapHierarchicalDataAdapter :
    TreeMapDataAdapterBase,
    ISupportNativeSource,
    INativeItemsCollector
Public Class TreeMapHierarchicalDataAdapter
    Inherits TreeMapDataAdapterBase
    Implements ISupportNativeSource,
               INativeItemsCollector

Remarks

This class introduces the TreeMapHierarchicalDataAdapter.DataSource property allowing you to specify the data source provided to the Tree Map and the TreeMapHierarchicalDataAdapter.ValueDataMember property that allows you to specify which data member is used as a value provider.

Examples

To provide hierarchical data to the Tree Map, do the following.

<Window.Resources>
    <HierarchicalDataTemplate 
        DataType="{x:Type local:SideOfWorld}"
        ItemsSource="{Binding Countries}">
        <TextBlock 
            Margin="4,4,4,-3"
            Padding="4,2,0,2"
            Text="{Binding Name}"
            Foreground="White"
            Background="Gray"/>
    </HierarchicalDataTemplate>
    <DataTemplate
        DataType="{x:Type local:Country}">
        <Grid>
            <TextBlock 
                Padding="4,2,0,0"
                Text="{Binding Name}" 
                TextWrapping="WrapWithOverflow" 
                TextTrimming="WordEllipsis"/>
            <Border 
                BorderThickness="1" 
                BorderBrush="#60000000"/>
        </Grid>
    </DataTemplate>
</Window.Resources>

<Grid>
    <dxtm:TreeMapControl>
        <dxtm:TreeMapControl.Colorizer>
            <dxtm:TreeMapPaletteColorizer>
                <dxtm:Office2013Palette/>
            </dxtm:TreeMapPaletteColorizer>
        </dxtm:TreeMapControl.Colorizer>
        <dxtm:TreeMapHierarchicalDataAdapter
            DataSource="{Binding}"
            ValueDataMember="Gdp">
        </dxtm:TreeMapHierarchicalDataAdapter>
    </dxtm:TreeMapControl>
</Grid>
See Also