TreeItem API

The API documentation of the TreeItem React component. Learn more about the props and the CSS customization points.

Import

import TreeItem from '@material-ui/lab/TreeItem';
// or
import { TreeItem } from '@material-ui/lab';

You can learn more about the difference by reading this guide.

Component name

The MuiTreeItem name can be used for providing default props or style overrides at the theme level.

Props

Name	Type	Default	Description
children	node		The content of the component.
classes	object		Override or extend the styles applied to the component. See CSS API below for more details.
collapseIcon	node		The icon used to collapse the node.
ContentComponent	element type	TreeItemContent	The component used for the content node. ⚠️ Needs to be able to hold a ref.
ContentProps	object		Props applied to ContentComponent
disabled	bool		If true, the node is disabled.
endIcon	node		The icon displayed next to a end node.
expandIcon	node		The icon used to expand the node.
icon	node		The icon to display next to the tree node's label.
label	node		The tree node label.
nodeId*	string		The id of the node.
onFocus	unsupportedProp		This prop isn't supported. Use the onNodeFocus callback on the tree if you need to monitor a node's focus.
TransitionComponent	elementType	Collapse	The component used for the transition. Follow this guide to learn more about the requirements for this component.
TransitionProps	object		Props applied to the transition element. By default, the element is based on this Transition component.

The ref is forwarded to the root element.

Any other props supplied will be provided to the root element (native element).

CSS

Rule name	Global class	Description
root	.MuiTreeItem-root	Styles applied to the root element.
group	.MuiTreeItem-group	Styles applied to the role="group" element.
content	.MuiTreeItem-content	Styles applied to the content element.
expanded	.Mui-expanded	Pseudo-class applied to the content element when expanded.
selected	.Mui-selected	Pseudo-class applied to the content element when selected.
focused	.Mui-focused	Pseudo-class applied to the content element when focused.
disabled	.Mui-disabled	Pseudo-class applied to the element when disabled.
iconContainer	.MuiTreeItem-iconContainer	Styles applied to the tree node icon.
label	.MuiTreeItem-label	Styles applied to the label element.

You can override the style of the component thanks to one of these customization points:

• With a rule name of the classes object prop.
• With a global class name.
• With a theme and an overrides property.

If that's not sufficient, you can check the implementation of the component for more detail.

Demos

• Tree View