ant-design-vue/components/tree/index.en-US.md

category	type	title	cover	coverDark
Components	Data Display	Tree	https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*Ag9_Q6ArswEAAAAAAAAAAAAADrJ8AQ/original	https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*1GeUQJPTGUYAAAAAAAAAAAAADrJ8AQ/original

A hierarchical list structure component.

When To Use

Almost anything can be represented in a tree structure. Examples include directories, organization hierarchies, biological classifications, countries, etc. The Tree component is a way of representing the hierarchical relationship between these things. You can also expand, collapse, and select a treeNode within a Tree.

API

Tree props

Property	Description	Type	Default	Version
allowDrop	Whether to allow dropping on the node	({ dropNode, dropPosition }) => boolean	-
autoExpandParent	Whether to automatically expand a parent treeNode	boolean	false
blockNode	Whether treeNode fill remaining horizontal space	boolean	false
checkable	Adds a Checkbox before the treeNodes	boolean	false
checkedKeys(v-model)	(Controlled) Specifies the keys of the checked treeNodes (PS: When this specifies the key of a treeNode which is also a parent treeNode, all the children treeNodes of will be checked; and vice versa, when it specifies the key of a treeNode which is a child treeNode, its parent treeNode will also be checked. When checkable and checkStrictly is true, its object has checked and halfChecked property. Regardless of whether the child or parent treeNode is checked, they won't impact each other.	string[] | number[] | {checked: string[] | number[], halfChecked: string[] | number[]}	[]
checkStrictly	Check treeNode precisely; parent treeNode and children treeNodes are not associated	boolean	false
defaultExpandAll	Whether to expand all treeNodes by default	boolean	false
disabled	whether disabled the tree	bool	false
draggable	Specifies whether this Tree is draggable (IE > 8)	boolean	false
expandedKeys(v-model)	(Controlled) Specifies the keys of the expanded treeNodes	string[] | number[]	[]
fieldNames	Replace the title,key and children fields in treeNode with the corresponding fields in treeData	object	{ children:'children', title:'title', key:'key' }	3.0.0
filterTreeNode	Defines a function to filter (highlight) treeNodes. When the function returns true, the corresponding treeNode will be highlighted	function(node)	-
height	Config virtual scroll height. Will not support horizontal scroll when enable this	number	-
loadData	Load data asynchronously	function(node)	-
loadedKeys	(Controlled) Set loaded tree nodes. Need work with loadData	string[] | number[]	[]
multiple	Allows selecting multiple treeNodes	boolean	false
selectable	whether can be selected	boolean	true
selectedKeys(v-model)	(Controlled) Specifies the keys of the selected treeNodes	string[] | number[]	-
showIcon	Shows the icon before a TreeNode's title. There is no default style; you must set a custom style for it if set to true	boolean	false
showLine	Shows a connecting line	boolean | {showLeafIcon: boolean}(3.0+)	false
switcherIcon	customize collapse/expand icon of tree node	v-slot:switcherIcon="{active, checked, expanded, loading, selected, halfChecked, title, key, children, dataRef, data, defaultIcon, switcherCls}"	-
title	custom title	slot		2.0.0
treeData	treeNode of tree, please use treeNodes before v1.1.4	TreeNode[]	-
virtual	Disable virtual scroll when set to false	boolean	true	3.0

Events

Events Name	Description	Arguments
check	Callback function for when the onCheck event occurs	function(checkedKeys, e:{checked: bool, checkedNodes, node, event})
dragend	Callback function for when the onDragEnd event occurs	function({event, node})
dragenter	Callback function for when the onDragEnter event occurs	function({event, node, expandedKeys})
dragleave	Callback function for when the onDragLeave event occurs	function({event, node})
dragover	Callback function for when the onDragOver event occurs	function({event, node})
dragstart	Callback function for when the onDragStart event occurs	function({event, node})
drop	Callback function for when the onDrop event occurs	function({event, node, dragNode, dragNodesKeys})
expand	Callback function for when a treeNode is expanded or collapsed	function(expandedKeys, {expanded: bool, node})
load	Callback function for when a treeNode is loaded	function(loadedKeys, {event, node})
rightClick	Callback function for when the user right clicks a treeNode	function({event, node})
select	Callback function for when the user clicks a treeNode	function(selectedKeys, e:{selected: bool, selectedNodes, node, event})

Tree Methods

Name	Description
scrollTo({ key: string | number; align?: 'top' | 'bottom' | 'auto'; offset?: number })	Scroll to key item in virtual scroll

TreeNode

Property	Description	Type	Default	Version
checkable	When Tree is checkable, set TreeNode display Checkbox or not	boolean	-
class	className	string	-
disableCheckbox	Disables the checkbox of the treeNode	boolean	false
disabled	Disables the treeNode	boolean	false
icon	customize icon. When you pass component, whose render will receive full TreeNode props as component props	slot|slot-scope	-
isLeaf	Determines if this is a leaf node(effective when loadData is specified)	boolean	false
key	Used with (default)ExpandedKeys / (default)CheckedKeys / (default)SelectedKeys. P.S.: It must be unique in all of treeNodes of the tree!	string | number	internal calculated position of treeNode
selectable	Set whether the treeNode can be selected	boolean	true
style	style	string|object	-
title	Title	string	'---'

DirectoryTree props

Property	Description	Type	Default
expandAction	Directory open logic, optional false 'click' 'dblclick'	string	click

FAQ

How to hide file icon when use showLine?

File icon realize by using switcherIcon. You can overwrite the style to hide it