wpf-devexpress-dot-xpf-dot-grid-dot-treelistview-d7cb06d3.md
Gets or sets the tree derivation mode. This is a dependency property.
Namespace : DevExpress.Xpf.Grid
Assembly : DevExpress.Xpf.Grid.v25.2.dll
NuGet Package : DevExpress.Wpf.Grid.Core
public TreeDerivationMode TreeDerivationMode { get; set; }
Public Property TreeDerivationMode As TreeDerivationMode
| Type | Description |
|---|---|
| TreeDerivationMode |
A TreeDerivationMode enumeration value that specifies the tree derivation mode.
|
Available values:
| Name | Description |
|---|---|
| Selfreference |
Builds a tree from a self-referential data structure. To learn more, see Bind to Self-Referential Data Structure.
| | ChildNodesSelector |
You should manually write code to specify where a data object’s child items come from by creating a selector class. To learn more, see Bind to Hierarchical Data Structure.
| | HierarchicalDataTemplate |
Builds a tree using Hierarchical Data Templates. To learn more, see Hierarchical Data Templates.
|
In data bound mode, the TreeListView can display information in a tree from either a self-referential (flat) or hierarchical data structure. For each type of a data structure, it provides the corresponding tree derivation mode(s), specified via the TreeDerivationMode property.
If the TreeDerivationMode property is set to TreeDerivationMode.HierarchicalDataTemplate, optimized mode is automatically disabled.
To learn more, see Binding to Hierarchical Data Overview.
The following code snippets (auto-collected from DevExpress Examples) contain references to the TreeDerivationMode property.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
wpf-spreadsheet-chart-api/CS/SpreadsheetWPFChartAPISamples/MainWindow.xaml#L52
<dxg:TreeListControl.View>
<dxg:TreeListView x:Name="view" TreeDerivationMode="ChildNodesSelector" ChildNodesSelector="{StaticResource childrenSelector}" ShowIndicator="False" ShowColumnHeaders="False" AutoWidth="True" AllowPerPixelScrolling="False" CustomColumnDisplayText="view_CustomColumnDisplayText" />
</dxg:TreeListControl.View>
wpf-spreadsheet-pivot-table-api-examples/CS/SpreadsheetWPFPivotTableExamples/MainWindow.xaml#L52
<dxg:TreeListControl.View>
<dxg:TreeListView x:Name="view" TreeDerivationMode="ChildNodesSelector" ChildNodesSelector="{StaticResource childrenSelector}" ShowIndicator="False" ShowColumnHeaders="False" AutoWidth="True" AllowPerPixelScrolling="False" CustomColumnDisplayText="view_CustomColumnDisplayText" />
</dxg:TreeListControl.View>
wpf-richedit-document-api/CS/DXRichEditControlAPISample/MainWindow.xaml#L57
<dxg:TreeListControl.View>
<dxg:TreeListView x:Name="view" TreeDerivationMode="ChildNodesSelector" ChildNodesSelector="{StaticResource childrenSelector}" ShowIndicator="False" ShowColumnHeaders="False" AutoWidth="True" AllowPerPixelScrolling="False" CustomColumnDisplayText="view_CustomColumnDisplayText" />
</dxg:TreeListControl.View>
wpf-lookupedit-display-treelist-as-popup-content/CS/CustomTreeViewComboBox/MainWindow.xaml#L21
ParentFieldName="ParentID"
TreeDerivationMode="Selfreference"/>
</dxg:GridControl.View>
wpf-grid-sync-isnodeexpanded-with-view-model/CS/DevExpress.Example04/MainWindow.xaml#L30
<dxg:GridControl.View>
<dxg:TreeListView AllowPerPixelScrolling="True" ShowTotalSummary="True" TreeDerivationMode="HierarchicalDataTemplate"/>
</dxg:GridControl.View>
See Also
Bind to Self-Referential Data Structure
Implement the Child Nodes Path
Use the Child Nodes Selector to Display Hierarchical Data
Load Nodes Asynchronously Without Locking the Application's UI