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API Reference
UI Widgets
Accordion
ActionSheet
Autocomplete
BarGauge
Box
Bullet
Button
ButtonGroup
Calendar
Chart
CheckBox
CircularGauge
ColorBox
ContextMenu
DataGrid
DateBox
DeferRendering
DiagramCTP
Draggable
Drawer
DropDownBox
DropDownButton
FileManagerCTP
FileUploader
FilterBuilder
Form
Funnel
Gallery
GanttCTP
HtmlEditorCTP
LinearGauge
List
LoadIndicator
LoadPanel
Lookup
Map
Menu
MultiView
NavBar
NumberBox
PieChart
PivotGrid
PivotGridFieldChooser
PolarChart
Popover
Popup
ProgressBar
RadioGroup
RangeSelector
RangeSlider
Resizable
ResponsiveBox
Sankey
Scheduler
ScrollView
SelectBox
SlideOut
SlideOutView
Slider
Sortable
Sparkline
SpeedDialAction
Switch
TabPanel
Tabs
TagBox
TextArea
TextBox
TileView
Toast
Toolbar
Tooltip
TreeList
Configuration
Methods
Events
Node
children
data
hasChildren
key
level
parent
visible
Row
TreeMap
TreeView
ValidationGroup
ValidationSummary
Validator
VectorMap
Markup Components
UI Events
CSS Classes
Data Layer
Types
Utilities
Getting Started
Angular
React
Vue
ASP.NET MVC 5
ASP.NET Core
Widgets
Data Binding
Common Features

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A newer version of this page is available. Switch to the current version.

JavaScript/jQuery TreeList Node

A TreeList node's structure.

Type:

Object

You can access nodes using the getRootNode() method and within some event handlers, for example, onNodesInitialized.

children

Contains all child nodes.

Type:

Array<TreeList Node>

data

The node's data object.

Type:

Object

hasChildren

Indicates whether the node has child nodes.

Type:

Boolean

key

The node's key.

Type: any

Keys are provided by the key field of the store that underlies the dataSource. Alternatively, you can set the widget's keyExpr option. With hierarchical data, keys can be generated automatically if key and keyExpr are not set.

level

The node's hierarchical level.

Type:

Number

The level of the root node is -1. This node is not visualized and is used to access the full hierarchy of nodes. The root node's children have level 0, the children's children have level 1, and so forth.

parent

The parent node.

Type:

TreeList Node

visible

Indicates whether the node is visualized as a row.

Type:

Boolean