DxTreeListEditor Class

A List Editor you can use in XAF ASP.NET Core Blazor applications to display data as a tree-like structure.

Namespace: DevExpress.ExpressApp.Blazor.Editors

Assembly: DevExpress.ExpressApp.Blazor.v24.2.dll

NuGet Package: DevExpress.ExpressApp.Blazor

Declaration

C#
VB.NET

public class DxTreeListEditor :
    DxGridListEditorBase

Public Class DxTreeListEditor
    Inherits DxGridListEditorBase

Remarks

List Views use List Editors to display object collections. DxTreeListEditor is a List Editor that displays data in the form of a tree. This editor is implemented in the TreeList Editors module.

XAF ASP.NET Core Blazor Tree List Editor, DevExpress

To display tree-like collections, the DxTreeListEditor uses an instance of the DxTreeList class. It supports the following features:

Client and Queryable mode. Queryable mode is available for flat data only.
Tree-like structure in the UI for ITreeNode objects
Tree-like structure for flat data objects with “Key - Parent Key” relationship
Data editing
Protected content placeholders for secured data rows
Loading child nodes on demand
Property editors as cell templates
Sorting and filtering
Summaries
Saving layout settings in the Application Model
Selection API
Context-dependent menu toolbar
Conditional appearance for cells
Column resizing
Column chooser

Note

DxTreeListEditor does not support the following features:

Server, ServerView, InstantFeedback, InstantFeedbackView, and DataView modes
Best fit column width
Node images for ITreeNode objects

DxTreeListEditor is available out of the box in XAF projects for objects that implement the ITreeNode interface. To enable it for flat data objects, specify the DevExpress.ExpressApp.Blazor.Editors.DxTreeListEditor list editor type in the IModelListView.EditorType model option.

For an example, refer to the Departments List View in the XAF ASP.NET Core Blazor demo.