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Docs > Controls and Libraries > TreeMap Control > Visual Elements > Group
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Group

The Group tree map item represents a collection of leaf tree map items grouped by a value.

The Group Header allows you to identify by which value leaf items are grouped. The header value is specified using the TreeMapItem.Label property.

The following image demonstrates the Group tree map item.

TreeMapGroup_Elements

Below are the main properties that affect the element appearance and functionality.

Group Properties
Appearance TreeMapControl.GroupStyle, TreeMapControl.GroupHeaderTextPattern, TreeMapControl.GroupBorderVisible; TreeMapCustomItem.GroupStyle
Content TreeMapItem.Label,TreeMapItem.Children