Tree List Editors (Organize Hierarchical Data)

• Dec 19, 2025

You can display list data in a tree structure to show parent-child relationships. This is useful for hierarchical data like categories, organizational charts, or folder structures.

XAF includes the TreeList Editors module to create tree-like displays. This module uses the following controls:

ASP.NET Core BlazorDxTreeListWindows FormsTreeList

How to Use Tree Lists

To display data in a tree list, use one of the following options:

Implement interfaces in your business classesAdd specific interfaces to your existing classes to define the tree structureUse ready-made classesUse pre-built classes from the Business Class Library

For more information, refer to the following topic: Tree-like Data Structure with ITreeNode Objects

You can also customize tree list controls by accessing them in code. You can modify the default settings or activate additional features. For more information about these controls, see WinForms TreeList and Blazor DxTreeList documentation.

Additional Information

• TreeList Editors Module Overview
• Display a Tree List using the ITreeNode Interface
• Display a Tree List using the HCategory Class
• Node Images in a Tree List
• Categorized List