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   [Collapse]TreeMapHierarchicalDataAdapter Class
     TreeMapHierarchicalDataAdapter Members
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View this topic on docs.devexpress.com (Learn more)

TreeMapHierarchicalDataAdapter Class

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

Namespace:DevExpress.XtraTreeMap
Assembly:DevExpress.XtraTreeMap.v19.1.dll

Expanded Syntax

Expanded Remarks

This class introduces the DataSource property allowing you to specify the data source provided to the Tree Map and the Mappings collection that allows you to specify data object mappings to tree map items.

For more information about Data Adapters, refer to the Providing Data topic.

Expanded Example

To provide hierarchical data to a TreeMap, create a TreeMapHierarchicalDataAdapter object and assign it to the TreeMapControl.DataAdapter property. Then, specify the adapter's data source object using the DataSource property. To configure how hierarchical data should be converted to tree map items, use HierarchicalDataMapping objects. The HierarchicalDataMapping.LabelDataMember property allows you to specify a label data member, the HierarchicalDataMapping.ValueDataMember property - a value data member, the HierarchicalDataMapping.ChildrenDataMember property - a data member containing children items, and the HierarchicalDataMapping.Type property - the type of items on the current nesting level.

Expanded Inheritance Hierarchy

System.Object
    DevExpress.XtraTreeMap.HierarchicalElement
       TreeMapElement
          TreeMapDataAdapterBase
             TreeMapHierarchicalDataAdapter

Expanded See Also

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