[Expand]General Information
[Collapse]WinForms Controls
 [Expand]What's Installed
 [Expand]Build an Application
 [Collapse]Controls and Libraries
  [Expand]Forms and User Controls
  [Expand]Messages, Notifications and Dialogs
  [Expand]Editors and Simple Controls
  [Expand]Ribbon, Bars and Menu
  [Expand]Application UI Manager
  [Expand]Docking Library
  [Expand]Data Grid
  [Expand]Vertical Grid
  [Expand]Property Grid
  [Expand]Pivot Grid
  [Collapse]Tree List
   [Expand]Product Information
   [Collapse]Feature Center
    [Expand]Data Binding
      Node Objects
      Node Structure
      Using the Nodes Iterator
      Custom Nodes
    [Expand]Data Editing
    [Expand]Data Presentation
    [Expand]Appearances and Look And Feel
    [Expand]Focus, Selection and Navigation
     Formatting Cell Values
   [Expand]Visual Elements
   [Expand]Design-Time Features
   [Expand]End User Capabilities
   [Expand]Member Tables
  [Expand]Chart Control
  [Expand]Map Control
  [Expand]Rich Text Editor
  [Expand]Spell Checker
  [Expand]Form Layout Managers
  [Expand]Navigation Controls
  [Expand]PDF Viewer
  [Expand]TreeMap Control
 [Expand]Common Features
  Get More Help
 [Expand]API Reference
[Expand]ASP.NET Controls and MVC Extensions
[Expand]ASP.NET Bootstrap Controls
[Expand]ASP.NET Core Bootstrap Controls
[Expand]WPF Controls
[Expand]Xamarin Controls
[Expand]Windows 10 App Controls
[Expand]Office File API
[Expand]Report and Dashboard Server
[Expand]eXpressApp Framework
[Expand]CodeRush Classic
[Expand]Cross-Platform Core Libraries
[Expand]Tools and Utilities
 End-User Documentation

Node Structure

Nodes include a number of elements:

All elements except data cells can be hidden via the corresponding properties. The table below lists the available elements, describes their purpose and visibility conditions.

Element Description Visibility
Data cells Display data from the associated data source record. Always visible.
Indicator Cells Enable end-users to move focus to nodes via a mouse click. Double-clicks result in expanding/collapsing the node. The TreeListOptionsView.ShowIndicator option.
Expand Button Enables end-users to expand/collapse the node. Indicates the current node state. The TreeListOptionsView.ShowButtons option.
Preview Sections Allow the display of arbitrary information under a node's data cells. Useful when it is required to display contents of a memo field. The TreeListOptionsView.ShowPreview option. See Preview Sections to learn more.
Select image Allows the display of an arbitrary image within a node. Provides means for automatic image substitution when the node is selected (receives focus). See the TreeList.SelectImageList topic for details.
State image Allows the display of an arbitrary image reflecting a node's state, according to your needs. See the TreeList.StateImageList topic for details.

Is this topic helpful?​​​​​​​