element-plus/assets/en-US_component_tree.md.395f4c6d.js

import{_ as C,a as E,b as c,c as l,d as r,e as D,f as u,g as k,h as i,i as F,j as d}from"./chunks/selectable.ced7c45c.js";import{c as A,a as p,w as e,u as o,b as n,d as a,e as y,r as h,o as g}from"./app.e5926f2b.js";const B=n("h1",{id:"tree",tabindex:"-1"},[a("Tree "),n("a",{class:"header-anchor",href:"#tree","aria-hidden":"true"},"#")],-1),b=n("p",null,"Display a set of data with hierarchies.",-1),m=n("h2",{id:"basic-usage",tabindex:"-1"},[a("Basic usage "),n("a",{class:"header-anchor",href:"#basic-usage","aria-hidden":"true"},"#")],-1),f=n("p",null,"Basic tree structure.",-1),v=n("p",null,"tree/basic",-1),w=n("h2",{id:"selectable",tabindex:"-1"},[a("Selectable "),n("a",{class:"header-anchor",href:"#selectable","aria-hidden":"true"},"#")],-1),L=n("p",null,"Used for node selection.",-1),N=n("p",null,"tree/selectable",-1),_=n("h2",{id:"custom-leaf-node-in-lazy-mode",tabindex:"-1"},[a("Custom leaf node in lazy mode "),n("a",{class:"header-anchor",href:"#custom-leaf-node-in-lazy-mode","aria-hidden":"true"},"#")],-1),x=n("p",null,"tree/custom-leaf",-1),T=n("h2",{id:"disabled-checkbox",tabindex:"-1"},[a("Disabled checkbox "),n("a",{class:"header-anchor",href:"#disabled-checkbox","aria-hidden":"true"},"#")],-1),q=n("p",null,"The checkbox of a node can be set as disabled.",-1),j=n("p",null,"tree/disabled",-1),P=n("h2",{id:"default-expanded-and-default-checked",tabindex:"-1"},[a("Default expanded and default checked "),n("a",{class:"header-anchor",href:"#default-expanded-and-default-checked","aria-hidden":"true"},"#")],-1),z=n("p",null,"Tree nodes can be initially expanded or checked",-1),S=n("p",null,"tree/default-state",-1),I=n("h2",{id:"checking-tree-nodes",tabindex:"-1"},[a("Checking tree nodes "),n("a",{class:"header-anchor",href:"#checking-tree-nodes","aria-hidden":"true"},"#")],-1),R=n("p",null,"tree/checking-tree",-1),K=n("h2",{id:"custom-node-content",tabindex:"-1"},[a("Custom node content "),n("a",{class:"header-anchor",href:"#custom-node-content","aria-hidden":"true"},"#")],-1),U=n("p",null,"The content of tree nodes can be customized, so you can add icons or buttons as you will",-1),O=n("p",null,"tree/customized-node",-1),V=n("h2",{id:"custom-node-class",tabindex:"-1"},[a("Custom node class "),n("a",{class:"header-anchor",href:"#custom-node-class","aria-hidden":"true"},"#")],-1),M=n("p",null,"The class of tree nodes can be customized",-1),H=n("p",null,"tree/custom-node-class",-1),J=n("h2",{id:"tree-node-filtering",tabindex:"-1"},[a("Tree node filtering "),n("a",{class:"header-anchor",href:"#tree-node-filtering","aria-hidden":"true"},"#")],-1),X=n("p",null,"Tree nodes can be filtered",-1),Y=n("p",null,"tree/filtering",-1),G=n("h2",{id:"accordion",tabindex:"-1"},[a("Accordion "),n("a",{class:"header-anchor",href:"#accordion","aria-hidden":"true"},"#")],-1),Q=n("p",null,"Only one node among the same level can be expanded at one time.",-1),W=n("p",null,"tree/accordion",-1),Z=n("h2",{id:"draggable",tabindex:"-1"},[a("Draggable "),n("a",{class:"header-anchor",href:"#draggable","aria-hidden":"true"},"#")],-1),$=n("p",null,[a("You can drag and drop Tree nodes by adding a "),n("code",null,"draggable"),a(" attribute.")],-1),n2=n("p",null,"tree/draggable",-1),a2=y('<h2 id="attributes" tabindex="-1">Attributes <a class="header-anchor" href="#attributes" aria-hidden="true">#</a></h2><table><thead><tr><th>Attribute</th><th>Description</th><th>Type</th><th>Accepted Values</th><th>Default</th></tr></thead><tbody><tr><td>data</td><td>tree data</td><td>array</td><td>\u2014</td><td>\u2014</td></tr><tr><td>empty-text</td><td>text displayed when data is void</td><td>string</td><td>\u2014</td><td>\u2014</td></tr><tr><td>node-key</td><td>unique identity key name for nodes, its value should be unique across the whole tree</td><td>string</td><td>\u2014</td><td>\u2014</td></tr><tr><td>props</td><td>configuration options, see the following table</td><td>object</td><td>\u2014</td><td>\u2014</td></tr><tr><td>render-after-expand</td><td>whether to render child nodes only after a parent node is expanded for the first time</td><td>boolean</td><td>\u2014</td><td>true</td></tr><tr><td>load</td><td>method for loading subtree data, only works when <code>lazy</code> is true</td><td>function(node, resolve)</td><td>\u2014</td><td>\u2014</td></tr><tr><td>render-content</td><td>render function for tree node</td><td>Function(h, <code>{ node, data, store }</code>)</td><td>\u2014</td><td>\u2014</td></tr><tr><td>highlight-current</td><td>whether current node is highlighted</td><td>boolean</td><td>\u2014</td><td>false</td></tr><tr><td>default-expand-all</td><td>whether to expand all nodes by default</td><td>boolean</td><td>\u2014</td><td>false</td></tr><tr><td>expand-on-click-node</td><td>whether to expand or collapse node when clicking on the node, if false, then expand or collapse node only when clicking on the arrow icon.</td><td>boolean</td><td>\u2014</td><td>true</td></tr><tr><td>check-on-click-node</td><td>whether to check or uncheck node when clicking on the node, if false, the node can only be checked or unchecked by clicking on the checkbox.</td><td>boolean</td><td>\u2014</td><td>false</td></tr><tr><td>auto-expand-parent</td><td>whether to expand father node when a child node is expanded</td><td>boolean</td><td>\u2014</td><td>true</td></tr><tr><td>default-expanded-keys</td><td>array of keys of initially expanded nodes</td><td>array</td><td>\u2014</td><td>\u2014</td></tr><tr><td>show-checkbox</td><td>whether node is selectable</td><td>boolean</td><td>\u2014</td><td>false</td></tr><tr><td>check-strictly</td><td>whether checked state of a node not affects its father and child nodes when <code>show-checkbox</code> is <code>true</code></td><td>boolean</td><td>\u2014</td><td>false</td></tr><tr><td>default-checked-keys</td><td>array of keys of initially checked nodes</td><td>array</td><td>\u2014</td><td>\u2014</td></tr><tr><td>current-node-key</td><td>key of initially selected node</td><td>string, number</td><td>\u2014</td><td>\u2014</td></tr><tr><td>filter-node-method</td><td>this function will be executed on each node when use filter method. if return <code>false</code>, tree node will be hidden.</td><td>Function(value, data, node)</td><td>\u2014</td><td>\u2014</td></tr><tr><td>accordion</td><td>whether only one node among the same level can be expanded at one time</td><td>boolean</td><td>\u2014</td><td>false</td></tr><tr><td>indent</td><td>horizontal indentation of nodes in adjacent levels in pixels</td><td>number</td><td>\u2014</td><td>16</td></tr><tr><td>icon</td><td>custome tree node icon component</td><td>string / Component</td><td>-</td><td>-</td></tr><tr><td>lazy</td><td>whether to lazy load leaf node, used with <code>load</code> attribute</td><td>boolean</td><td>\u2014</td><td>false</td></tr><tr><td>draggable</td><td>whether enable tree nodes drag and drop</td><td>boolean</td><td>\u2014</td><td>false</td></tr><tr><td>allow-drag</td><td>this function will be executed before dragging a node. If <code>false</code> is returned, the node can not be dragged</td><td>Function(node)</td><td>\u2014</td><td>\u2014</td></tr><tr><td>allow-drop</td><td>this function will be executed before the dragging node is dropped. If <code>false</code> is returned, the dragging node can not be dropped at the target node. <code>type</code> has three possible values: &#39;prev&#39; (inserting the dragging node before the target node), &#39;inner&#39; (inserting the dragging node to the target node) and &#39;next&#39; (inserting the dragging node after the target node)</td><td>Function(draggingNode, dropNode, type)</td><td>\u2014</td><td>\u2014</td></tr></tbody></table><h2 id="props" tabindex="-1">props <a class="header-anchor" href="#props" aria-hidden="true">#</a></h2><table><thead><tr><th>Attribute</th><th>Description</th><th>Type</th><th>Accepted Values</th><th>Default</th></tr></thead><tbody><tr><td>label</td><td>specify which key of node object is used as the node&#39;s label</td><td>string, function(data, node)</td><td>\u2014</td><td>\u2014</td></tr><tr><td>children</td><td>specify which node object is used as the node&#39;s subtree</td><td>string</td><td>\u2014</td><td>\u2014</td></tr><tr><td>disabled</td><td>specify which key of node object represents if node&#39;s checkbox is disabled</td><td>string, function(data, node)</td><td>\u2014</td><td>\u2014</td></tr><tr><td>isLeaf</td><td>specify whether the node is a leaf node, only works when lazy load is enabled</td><td>string, function(data, node)</td><td>\u2014</td><td>\u2014</td></tr><tr><td>class</td><td>custom node class name</td><td>string, function(data, node)</td><td>\u2014</td><td>\u2014</td></tr></tbody></table><h2 id="method" tabindex="-1">Method <a class="header-anchor" href="#method" aria-hidden="true">#</a></h2><p><code>Tree</code> has the following method, which returns the currently selected array of nodes.</p><table><thead><tr><th>Method</th><th>Description</th><th>Parameters</th></tr></thead><tbody><tr><td>filter</td><td>filter all tree nodes, filtered nodes will be hidden</td><td>Accept a parameter which will be used as first parameter for filter-node-method</td></tr><tr><td>updateKeyChildren</td><td>set new data to node, only works when <code>node-key</code> is assigned</td><td>(key, data) Accept two parameters: 1. key of node 2. new data</td></tr><tr><td>getCheckedNodes</td><td>If the node can be selected (<code>show-checkbox</code> is <code>true</code>), it returns the currently selected array of nodes</td><td>(leafOnly, includeHalfChecked) Accept two boolean type parameters: 1. default value is <code>false</code>. If the parameter is <code>true</code>, it only returns the currently selected array of sub-nodes. 2. default value is <code>false</code>. If the parameter is <code>true</code>, the return value contains halfchecked nodes</td></tr><tr><td>setCheckedNodes</td><td>set certain nodes to be checked, only works when <code>node-key</code> is assigned</td><td>an array of nodes to be checked</td></tr><tr><td>getCheckedKeys</td><td>If the node can be selected (<code>show-checkbox</code> is <code>true</code>), it returns the currently selected array of node&#39;s keys</td><td>(leafOnly) Accept a boolean type parameter whose default value is <code>false</code>. If the parameter is <code>true</code>, it only returns the currently selected array of sub-nodes.</td></tr><tr><td>setCheckedKeys</td><td>set certain nodes to be checked, only works when <code>node-key</code> is assigned</td><td>(keys, leafOnly) Accept two parameters: 1. an array of node&#39;s keys to be checked 2. a boolean type parameter whose default value is <code>false</code>. If the parameter is <code>true</code>, it only returns the currently selected array of sub-nodes.</td></tr><tr><td>setChecked</td><td>set node to be checked or not, only works when <code>node-key</code> is assigned</td><td>(key/data, checked, deep) Accept three parameters: 1. node&#39;s key or data to be checked 2. a boolean typed parameter indicating checked or not. 3. a boolean typed parameter indicating deep or not.</td></tr><tr><td>getHalfCheckedNodes</td><td>If the node can be selected (<code>show-checkbox</code> is <code>true</code>), it returns the currently half selected array of nodes</td><td>-</td></tr><tr><td>getHalfCheckedKeys</td><td>If the node can be selected (<code>show-checkbox</code> is <code>true</code>), it returns the currently half selected array of node&#39;s keys</td><td>-</td></tr><tr><td>getCurrentKey</td><td>return the highlight node&#39;s key (null if no node is highlighted)</td><td>\u2014</td></tr><tr><td>getCurrentNode</td><td>return the highlight node&#39;s data (null if no node is highlighted)</td><td>\u2014</td></tr><tr><td>setCurrentKey</td><td>set highlighted node by key, only works when <code>node-key</code> is assigned</td><td>(key, shouldAutoExpandParent=true) 1. the node&#39;s key to be highlighted. If <code>null</code>, cancel the currently highlighted node 2. whether to automatically expand parent node</td></tr><tr><td>setCurrentNode</td><td>set highlighted node, only works when <code>node-key</code> is assigned</td><td>(node, shouldAutoExpandParent=true) 1. the node to be highlighted 2. whether to automatically expand parent node</td></tr><tr><td>getNode</td><td>get node by data or key</td><td>(data) the node&#39;s data or key</td></tr><tr><td>remove</td><td>remove a node, only works when node-key is assigned</td><td>(data) the node&#39;s data or node to be deleted</td></tr><tr><td>append</td><td>append a child node to a given node in the tree</td><td>(data, parentNode) 1. child node&#39;s data to be appended 2. parent node&#39;s data, key or node</td></tr><tr><td>insertBefore</td><td>insert a node before a given node in the tree</td><td>(data, refNode) 1. node&#39;s data to be inserted 2. reference node&#39;s data, key or node</td></tr><tr><td>insertAfter</td><td>insert a node after a given node in the tree</td><td>(data, refNode) 1. node&#39;s data to be inserted 2. reference node&#39;s data, key or node</td></tr></tbody></table><h2 id="events" tabindex="-1">Events <a class="header-anchor" href="#events" aria-hidden="true">#</a></h2><table><thead><tr><th>Event Name</th><th>Description</th><th>Parameters</th></tr></thead><tbody><tr><td>node-click</td><td>triggers when a node is clicked</td><td>three parameters: node object corresponding to the node clicked, <code>node</code> property of TreeNode, TreeNode itself, event object</td></tr><tr><td>node-contextmenu</td><td>triggers when a node is clicked by right button</td><td>four parameters: event, node object corresponding to the node clicked, <code>node</code> property of TreeNode, TreeNode itself</td></tr><tr><td>check-change</td><td>triggers when the selected state of the node changes</td><td>three parameters: node object corresponding to the node whose selected state is changed, whether the node is selected, whether node&#39;s subtree has selected nodes</td></tr><tr><td>check</td><td>triggers after clicking the checkbox of a node</td><td>two parameters: node object corresponding to the node that is checked / unchecked, tree checked status object which has four props: checkedNodes, checkedKeys, halfCheckedNodes, halfCheckedKeys</td></tr><tr><td>current-change</td><td>triggers when current node changes</td><td>two parameters: node object corresponding to the current node, <code>node</code> property of TreeNode</td></tr><tr><td>node-expand</td><td>triggers when current node open</td><td>three parameters: node object corresponding to the node opened, <code>node</code> property of TreeNode, TreeNode itself</td></tr><tr><td>node-collapse</td><td>triggers when current node close</td><td>three parameters: node object corresponding to the node closed, <code>node</code> property of TreeNode, TreeNode itself</td></tr><tr><td>node-drag-start</td><td>triggers when dragging starts</td><td>two parameters: node object corresponding to the dragging node, event.</td></tr><tr><td>node-drag-enter</td><td>triggers when the dragging node enters another node</td><td>three parameters: node object corresponding to the dragging node, node object corresponding to the entering node, event.</td></tr><tr><td>node-drag-leave</td><td>triggers when the dragging node leaves a node</td><td>three parameters: node object corresponding to the dragging node, node object corresponding to the leaving node, event.</td></tr><tr><td>node-drag-over</td><td>triggers when dragging over a node (like mouseover event)</td><td>three parameters: node object corresponding to the dragging node, node object corresponding to the dragging over node, event.</td></tr><tr><td>node-drag-end</td><td>triggers when dragging ends</td><td>four parameters: node object corresponding to the dragging node, node object corresponding to the dragging end node (may be <code>undefined</code>), node drop type (before / after / inner), event.</td></tr><tr><td>node-drop</td><td>triggers after the dragging node is dropped</td><td>four parameters: node object corresponding to the dragging node, node object corresponding to the dropped node, node drop type (before / after / inner), event.</td></tr></tbody></table><h2 id="slots" tabindex="-1">Slots <a class="header-anchor" href="#slots" aria-hidden="true">#</a></h2><table><thead><tr><th>Name</th><th>Description</th></tr></thead><tbody><tr><td>\u2014</td><td>Custom content for tree nodes. The scope parameter is <code>{ node, data }</code></td></tr></tbody></table>',11),E2='{"title":"Tree","description":"","frontmatter":{"title":"Tree","lang":"en-US"},"headers":[{"level":2,"title":"Basic usage","slug":"basic-usage"},{"level":2,"title":"Selectable","slug":"selectable"},{"level":2,"title":"Custom leaf node in lazy mode","slug":"custom-leaf-node-in-lazy-mode"},{"level":2,"title":"Disabled checkbox","slug":"disabled-checkbox"},{"level":2,"title":"Default expanded and default checked","slug":"default-expanded-and-default-checked"},{"level":2,"title":"Checking tree nodes","slug":"checking-tree-nodes"},{"level":2,"title":"Custom node content","slug":"custom-node-content"},{"level":2,"title":"Custom node class","slug":"custom-node-class"},{"level":2,"title":"Tree node filtering","slug":"tree-node-filtering"},{"level":2,"title":"Accordion","slug":"accordion"},{"level":2,"title":"Draggable","slug":"draggable"},{"level":2,"title":"Attributes","slug":"attributes"},{"level":2,"title":"props","slug":"props"},{"level":2,"title":"Method","slug":"method"},{"level":2,"title":"Events","slug":"events"},{"level":2,"title":"Slots","slug":"slots"}],"relativePath":"en-US/component/tree.md","lastUpdated":1648565394000}',s2={},c2=Object.assign(s2,{setup(t2){const s={"../../examples/tree/accordion.vue":C,"../../examples/tree/basic.vue":E,"../../examples/tree/checking-tree.vue":c,"../../examples/tree/custom-leaf.vue":l,"../../examples/tree/custom-node-class.vue":r,"../../examples/tree/customized-node.vue":D,"../../examples/tree/default-state.vue":u,"../../examples/tree/disabled.vue":k,"../../examples/tree/draggable.vue":i,"../../examples/tree/filtering.vue":F,"../../examples/tree/selectable.vue":d};return(p2,e2)=>{const t=h("Demo");return 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as __pageData,c2 as default};