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TreeItem API

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


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.


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.
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.
TransitionComponent elementType Collapse The component used for the transition.

The ref is forwarded to the root element.

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


  • Style sheet name: MuiTreeItem.
  • Style sheet details:
Rule name Global class Description
root .MuiTreeItem-root Styles applied to the root element.
expanded .Mui-expanded Pseudo-class applied to the root element when expanded.
group .MuiTreeItem-group Styles applied to the role="group" element.
content .MuiTreeItem-content Styles applied to the tree node content.
iconContainer .MuiTreeItem-iconContainer Styles applied to the tree node icon and collapse/expand 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:

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