TreeView

Tree views can be used to represent a file system navigator displaying folders and files, an item representing a folder can be expanded to reveal the contents of the folder, which may be files, folders, or both.

<TreeView
      defaultCollapseIcon={<ArrowDown />}
      defaultExpandIcon={<ArrowRight />}
    >
      <TreeItem nodeId="1" label="Applications">
        <TreeItem nodeId="2" label="Calendar" />
        <TreeItem nodeId="3" label="Chrome" />
        <TreeItem nodeId="4" label="Webstorm" />
      </TreeItem>
      <TreeItem nodeId="5" label="Documents">
        <TreeItem nodeId="10" label="OSS" />
        <TreeItem nodeId="6" label="Material-UI">
          <TreeItem nodeId="7" label="src">
            <TreeItem nodeId="8" label="index.js" />
            <TreeItem nodeId="9" label="tree-view.js" />
          </TreeItem>
        </TreeItem>
      </TreeItem>
    </TreeView>

Props

Prop	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.
defaultCollapseIcon	node		The default icon used to collapse the node.
defaultEndIcon	node		The default icon displayed next to a end node. This is applied to all tree nodes and can be overridden by the TreeItem icon prop.
defaultExpanded	Array<string>	[]	Expanded node ids. (Uncontrolled).
defaultExpandIcon	node		The default icon used to expand the node.
defaultParentIcon	node		The default icon displayed next to a parent node. This is applied to all parent nodes and can be overridden by the TreeItem icon prop.
defaultSelected	Array<string> \| string	[]	Selected node ids. (Uncontrolled) When multiSelect is true this takes an array of strings; when false (default) a string.
disableSelection	bool	false	If true selection is disabled.
expanded	Array<string>	false	Expanded node ids. (Controlled).
multiSelect	bool	false	If true ctrl and shift will trigger multiselect.
onNodeSelect	func	'medium'	Callback fired when tree items are selected/unselected. Signature:function(event: object, value: array \| string) => void event: The event source of the callback value: of the selected nodes. When multiSelect is true this is an array of strings; when false (default) a string.
onNodeToggle	func		Callback fired when tree items are expanded/collapsed. Signature:function(event: object, nodeIds: array) => void event: The event source of the callback.nodeIds: The ids of the expanded nodes.
selected	Array<string> \| string		Selected node ids. (Controlled) When multiSelect is true this takes an array of strings; when false (default) a string.