ant-design/components/tree/index.zh-CN.md

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2016-03-31 14:17:09 +08:00
---
category: Components
docs: v5 site upgrade (#38328) * build: try to use dumi as doc tool * docs: migrate demo structure to dumi way * refactor: use type export & import * docs: migrate demo previewer to dumi * docs: create empty layout & components * docs: apply custom rehype plugin * docs: create empty extra pages * docs: Add Banner component * chore: move theme tsconfig.json * docs: home page init * docs: migrate header (#37896) * docs: header * docs: update * docs: home init * clean up * test: fix site lint * chore: tsc ignore demo * chore: dumi demo migrate script * chore: cards * docs: home layout * docs: Update locale logic * docs: fix getLink logic * chore: fix ci (#37899) * chore: fix ci * ci: remove check-ts-demo * ci: preview build * test: ignore demo.tsx * chore: update script * test: update snapshot * test: update node and image test * chore: add .surgeignore * docs: layout providers (#37908) * docs: add components sidebar (#37923) * docs: sidebar * docs: update docs title * docs: update design doc * chore: code clean * docs: handle changelog page * docs: add title * docs: add subtitle * docs: active header nav * chore: code clean * docs: overview * chore: code clean * docs: update intl (#37918) * docs: update intl * chore: code clean * docs: update favicons * chore: update testPathIgnorePatterns * chore: code clean * chore: code clean * chore: copy 404.html (#37996) * docs: Home page theme picker * chore: Update migrate script * docs: home page update * docs: theme editor style * docs: theme lang * chore: update migrate.js * docs: fix demo (#38094) * chore: update migrate.js * docs: update md * docs: update demo * test: fix snapshot * chore: move debug to code attr in migrate script * chore: update md Co-authored-by: PeachScript <scdzwyxst@gmail.com> * feat: overview page * feat: Migrate `404` page (#38118) * feat: migrate IconSearch component (#37916) * feat<site/IconSearch>: copy IconDisplay from site to .dumi * feat<site/IconSearch>: change docs of icon * feat<site/IconSearch>: tweak * feat<site/IconSearch>: use useIntl instead of injectIntl * feat<site/IconSearch>: fix ts type error * feat<site/IconSearch>: use intl.formatMessage to render text * docs: Adjust home btn sizw * docs: Update doc * feat: v5 site overview page (#38131) * feat: site * fix: fix * feat: v5 site overview page * fix: fix path * fix: fix * fix: fix * docs: fix margin logic * feat: v5 site change-log page (#38137) * feat: v5 site change-log page (#38162) * docs: site redirect to home pag * docs: theme picker * docs: use react-intl from dumi (#38183) * docs: Theme Picker * docs: update dumi config * docs: home back fix * docs: picker colorful * docs: locale of it * docs: update components desc * docs: site of links * docs: update components list * docs: update desc * feat: Migrate `DemoWrapper` component (#38166) * feat: Migrate `DemoWrapper` component * feat: remove invalid comments and add comment for `key` prop * docs: FloatButton pure panel * chore: update demo * chore: update dumi config * Revert "chore: update demo" This reverts commit 028265d3ba5987df5f13c3e9d42cf76cb1812b2e. * chore: test logic adjust to support cnpm modules * chore: add locale alias * docs: /index to / * docs: add locale redirect head script * chore: adjust compact * docs: fix missing token * feat: compact switch * chore: code clean * docs: update home * docs: fix radius token * docs: hash of it * chore: adjust home page * docs: Add background map * docs: site theme bac logic * docs: avatar * docs: update logo color * docs: home banner * docs: adjust tour size * docs: purepanl update * docs: transfooter * docs: update banner gif * docs: content (#38361) * docs: title & EditButton * docs: content * chore: fix toc * docs: resource page * docs: transform resource data from hast * docs: filename & Resource Card * chore: enable prerender * chore: remove less * docs: toc style * chore: fix lint * docs: fix Layout page * docs: fix CP page * chore: update demos * docs: workaround for export dynamic html * chore: enable demo eslint * docs: table style * fix: header shadow * chore: update snapshot * fix: toc style * docs: add title * docs: Adjust site * feat: helmet * docs: site css * fix: description * feat: toc debug * docs: update config-provider * feat: use colorPanel * fix: colorPanel value * feat: anchor ink ball style * feat: apply theme editor * fix: code block style * chore: update demo * chore: fix lint * chore: code clean * chore: update snapshot * feat: ts2js * chore: description * docs: site ready for ssr includes: - move client render logic to useEffect in site theme - extract antd cssinjs to a single css file like bisheng - workaround to support react@18 pipeableStream for emotion * chore: bump testing lib * docs: font size of title * chore: remove react-sortable-hoc * chore: update snapshot * chore: update script Co-authored-by: PeachScript <scdzwyxst@gmail.com> Co-authored-by: MadCcc <1075746765@qq.com> Co-authored-by: zqran <uuxnet@gmail.com> Co-authored-by: TrickyPi <530257315@qq.com> Co-authored-by: lijianan <574980606@qq.com>
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group: 数据展示
2016-07-21 10:15:00 +08:00
title: Tree
subtitle: 树形控件
cover: https://gw.alipayobjects.com/zos/alicdn/Xh-oWqg9k/Tree.svg
docs: v5 site upgrade (#38328) * build: try to use dumi as doc tool * docs: migrate demo structure to dumi way * refactor: use type export & import * docs: migrate demo previewer to dumi * docs: create empty layout & components * docs: apply custom rehype plugin * docs: create empty extra pages * docs: Add Banner component * chore: move theme tsconfig.json * docs: home page init * docs: migrate header (#37896) * docs: header * docs: update * docs: home init * clean up * test: fix site lint * chore: tsc ignore demo * chore: dumi demo migrate script * chore: cards * docs: home layout * docs: Update locale logic * docs: fix getLink logic * chore: fix ci (#37899) * chore: fix ci * ci: remove check-ts-demo * ci: preview build * test: ignore demo.tsx * chore: update script * test: update snapshot * test: update node and image test * chore: add .surgeignore * docs: layout providers (#37908) * docs: add components sidebar (#37923) * docs: sidebar * docs: update docs title * docs: update design doc * chore: code clean * docs: handle changelog page * docs: add title * docs: add subtitle * docs: active header nav * chore: code clean * docs: overview * chore: code clean * docs: update intl (#37918) * docs: update intl * chore: code clean * docs: update favicons * chore: update testPathIgnorePatterns * chore: code clean * chore: code clean * chore: copy 404.html (#37996) * docs: Home page theme picker * chore: Update migrate script * docs: home page update * docs: theme editor style * docs: theme lang * chore: update migrate.js * docs: fix demo (#38094) * chore: update migrate.js * docs: update md * docs: update demo * test: fix snapshot * chore: move debug to code attr in migrate script * chore: update md Co-authored-by: PeachScript <scdzwyxst@gmail.com> * feat: overview page * feat: Migrate `404` page (#38118) * feat: migrate IconSearch component (#37916) * feat<site/IconSearch>: copy IconDisplay from site to .dumi * feat<site/IconSearch>: change docs of icon * feat<site/IconSearch>: tweak * feat<site/IconSearch>: use useIntl instead of injectIntl * feat<site/IconSearch>: fix ts type error * feat<site/IconSearch>: use intl.formatMessage to render text * docs: Adjust home btn sizw * docs: Update doc * feat: v5 site overview page (#38131) * feat: site * fix: fix * feat: v5 site overview page * fix: fix path * fix: fix * fix: fix * docs: fix margin logic * feat: v5 site change-log page (#38137) * feat: v5 site change-log page (#38162) * docs: site redirect to home pag * docs: theme picker * docs: use react-intl from dumi (#38183) * docs: Theme Picker * docs: update dumi config * docs: home back fix * docs: picker colorful * docs: locale of it * docs: update components desc * docs: site of links * docs: update components list * docs: update desc * feat: Migrate `DemoWrapper` component (#38166) * feat: Migrate `DemoWrapper` component * feat: remove invalid comments and add comment for `key` prop * docs: FloatButton pure panel * chore: update demo * chore: update dumi config * Revert "chore: update demo" This reverts commit 028265d3ba5987df5f13c3e9d42cf76cb1812b2e. * chore: test logic adjust to support cnpm modules * chore: add locale alias * docs: /index to / * docs: add locale redirect head script * chore: adjust compact * docs: fix missing token * feat: compact switch * chore: code clean * docs: update home * docs: fix radius token * docs: hash of it * chore: adjust home page * docs: Add background map * docs: site theme bac logic * docs: avatar * docs: update logo color * docs: home banner * docs: adjust tour size * docs: purepanl update * docs: transfooter * docs: update banner gif * docs: content (#38361) * docs: title & EditButton * docs: content * chore: fix toc * docs: resource page * docs: transform resource data from hast * docs: filename & Resource Card * chore: enable prerender * chore: remove less * docs: toc style * chore: fix lint * docs: fix Layout page * docs: fix CP page * chore: update demos * docs: workaround for export dynamic html * chore: enable demo eslint * docs: table style * fix: header shadow * chore: update snapshot * fix: toc style * docs: add title * docs: Adjust site * feat: helmet * docs: site css * fix: description * feat: toc debug * docs: update config-provider * feat: use colorPanel * fix: colorPanel value * feat: anchor ink ball style * feat: apply theme editor * fix: code block style * chore: update demo * chore: fix lint * chore: code clean * chore: update snapshot * feat: ts2js * chore: description * docs: site ready for ssr includes: - move client render logic to useEffect in site theme - extract antd cssinjs to a single css file like bisheng - workaround to support react@18 pipeableStream for emotion * chore: bump testing lib * docs: font size of title * chore: remove react-sortable-hoc * chore: update snapshot * chore: update script Co-authored-by: PeachScript <scdzwyxst@gmail.com> Co-authored-by: MadCcc <1075746765@qq.com> Co-authored-by: zqran <uuxnet@gmail.com> Co-authored-by: TrickyPi <530257315@qq.com> Co-authored-by: lijianan <574980606@qq.com>
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demo:
cols: 2
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---
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多层次的结构列表。
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## 何时使用
文件夹、组织架构、生物分类、国家地区等等,世间万物的大多数结构都是树形结构。使用 `树控件` 可以完整展现其中的层级关系,并具有展开收起选择等交互功能。
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docs: v5 site upgrade (#38328) * build: try to use dumi as doc tool * docs: migrate demo structure to dumi way * refactor: use type export & import * docs: migrate demo previewer to dumi * docs: create empty layout & components * docs: apply custom rehype plugin * docs: create empty extra pages * docs: Add Banner component * chore: move theme tsconfig.json * docs: home page init * docs: migrate header (#37896) * docs: header * docs: update * docs: home init * clean up * test: fix site lint * chore: tsc ignore demo * chore: dumi demo migrate script * chore: cards * docs: home layout * docs: Update locale logic * docs: fix getLink logic * chore: fix ci (#37899) * chore: fix ci * ci: remove check-ts-demo * ci: preview build * test: ignore demo.tsx * chore: update script * test: update snapshot * test: update node and image test * chore: add .surgeignore * docs: layout providers (#37908) * docs: add components sidebar (#37923) * docs: sidebar * docs: update docs title * docs: update design doc * chore: code clean * docs: handle changelog page * docs: add title * docs: add subtitle * docs: active header nav * chore: code clean * docs: overview * chore: code clean * docs: update intl (#37918) * docs: update intl * chore: code clean * docs: update favicons * chore: update testPathIgnorePatterns * chore: code clean * chore: code clean * chore: copy 404.html (#37996) * docs: Home page theme picker * chore: Update migrate script * docs: home page update * docs: theme editor style * docs: theme lang * chore: update migrate.js * docs: fix demo (#38094) * chore: update migrate.js * docs: update md * docs: update demo * test: fix snapshot * chore: move debug to code attr in migrate script * chore: update md Co-authored-by: PeachScript <scdzwyxst@gmail.com> * feat: overview page * feat: Migrate `404` page (#38118) * feat: migrate IconSearch component (#37916) * feat<site/IconSearch>: copy IconDisplay from site to .dumi * feat<site/IconSearch>: change docs of icon * feat<site/IconSearch>: tweak * feat<site/IconSearch>: use useIntl instead of injectIntl * feat<site/IconSearch>: fix ts type error * feat<site/IconSearch>: use intl.formatMessage to render text * docs: Adjust home btn sizw * docs: Update doc * feat: v5 site overview page (#38131) * feat: site * fix: fix * feat: v5 site overview page * fix: fix path * fix: fix * fix: fix * docs: fix margin logic * feat: v5 site change-log page (#38137) * feat: v5 site change-log page (#38162) * docs: site redirect to home pag * docs: theme picker * docs: use react-intl from dumi (#38183) * docs: Theme Picker * docs: update dumi config * docs: home back fix * docs: picker colorful * docs: locale of it * docs: update components desc * docs: site of links * docs: update components list * docs: update desc * feat: Migrate `DemoWrapper` component (#38166) * feat: Migrate `DemoWrapper` component * feat: remove invalid comments and add comment for `key` prop * docs: FloatButton pure panel * chore: update demo * chore: update dumi config * Revert "chore: update demo" This reverts commit 028265d3ba5987df5f13c3e9d42cf76cb1812b2e. * chore: test logic adjust to support cnpm modules * chore: add locale alias * docs: /index to / * docs: add locale redirect head script * chore: adjust compact * docs: fix missing token * feat: compact switch * chore: code clean * docs: update home * docs: fix radius token * docs: hash of it * chore: adjust home page * docs: Add background map * docs: site theme bac logic * docs: avatar * docs: update logo color * docs: home banner * docs: adjust tour size * docs: purepanl update * docs: transfooter * docs: update banner gif * docs: content (#38361) * docs: title & EditButton * docs: content * chore: fix toc * docs: resource page * docs: transform resource data from hast * docs: filename & Resource Card * chore: enable prerender * chore: remove less * docs: toc style * chore: fix lint * docs: fix Layout page * docs: fix CP page * chore: update demos * docs: workaround for export dynamic html * chore: enable demo eslint * docs: table style * fix: header shadow * chore: update snapshot * fix: toc style * docs: add title * docs: Adjust site * feat: helmet * docs: site css * fix: description * feat: toc debug * docs: update config-provider * feat: use colorPanel * fix: colorPanel value * feat: anchor ink ball style * feat: apply theme editor * fix: code block style * chore: update demo * chore: fix lint * chore: code clean * chore: update snapshot * feat: ts2js * chore: description * docs: site ready for ssr includes: - move client render logic to useEffect in site theme - extract antd cssinjs to a single css file like bisheng - workaround to support react@18 pipeableStream for emotion * chore: bump testing lib * docs: font size of title * chore: remove react-sortable-hoc * chore: update snapshot * chore: update script Co-authored-by: PeachScript <scdzwyxst@gmail.com> Co-authored-by: MadCcc <1075746765@qq.com> Co-authored-by: zqran <uuxnet@gmail.com> Co-authored-by: TrickyPi <530257315@qq.com> Co-authored-by: lijianan <574980606@qq.com>
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## 代码演示
<!-- prettier-ignore -->
docs: v5 site upgrade (#38328) * build: try to use dumi as doc tool * docs: migrate demo structure to dumi way * refactor: use type export & import * docs: migrate demo previewer to dumi * docs: create empty layout & components * docs: apply custom rehype plugin * docs: create empty extra pages * docs: Add Banner component * chore: move theme tsconfig.json * docs: home page init * docs: migrate header (#37896) * docs: header * docs: update * docs: home init * clean up * test: fix site lint * chore: tsc ignore demo * chore: dumi demo migrate script * chore: cards * docs: home layout * docs: Update locale logic * docs: fix getLink logic * chore: fix ci (#37899) * chore: fix ci * ci: remove check-ts-demo * ci: preview build * test: ignore demo.tsx * chore: update script * test: update snapshot * test: update node and image test * chore: add .surgeignore * docs: layout providers (#37908) * docs: add components sidebar (#37923) * docs: sidebar * docs: update docs title * docs: update design doc * chore: code clean * docs: handle changelog page * docs: add title * docs: add subtitle * docs: active header nav * chore: code clean * docs: overview * chore: code clean * docs: update intl (#37918) * docs: update intl * chore: code clean * docs: update favicons * chore: update testPathIgnorePatterns * chore: code clean * chore: code clean * chore: copy 404.html (#37996) * docs: Home page theme picker * chore: Update migrate script * docs: home page update * docs: theme editor style * docs: theme lang * chore: update migrate.js * docs: fix demo (#38094) * chore: update migrate.js * docs: update md * docs: update demo * test: fix snapshot * chore: move debug to code attr in migrate script * chore: update md Co-authored-by: PeachScript <scdzwyxst@gmail.com> * feat: overview page * feat: Migrate `404` page (#38118) * feat: migrate IconSearch component (#37916) * feat<site/IconSearch>: copy IconDisplay from site to .dumi * feat<site/IconSearch>: change docs of icon * feat<site/IconSearch>: tweak * feat<site/IconSearch>: use useIntl instead of injectIntl * feat<site/IconSearch>: fix ts type error * feat<site/IconSearch>: use intl.formatMessage to render text * docs: Adjust home btn sizw * docs: Update doc * feat: v5 site overview page (#38131) * feat: site * fix: fix * feat: v5 site overview page * fix: fix path * fix: fix * fix: fix * docs: fix margin logic * feat: v5 site change-log page (#38137) * feat: v5 site change-log page (#38162) * docs: site redirect to home pag * docs: theme picker * docs: use react-intl from dumi (#38183) * docs: Theme Picker * docs: update dumi config * docs: home back fix * docs: picker colorful * docs: locale of it * docs: update components desc * docs: site of links * docs: update components list * docs: update desc * feat: Migrate `DemoWrapper` component (#38166) * feat: Migrate `DemoWrapper` component * feat: remove invalid comments and add comment for `key` prop * docs: FloatButton pure panel * chore: update demo * chore: update dumi config * Revert "chore: update demo" This reverts commit 028265d3ba5987df5f13c3e9d42cf76cb1812b2e. * chore: test logic adjust to support cnpm modules * chore: add locale alias * docs: /index to / * docs: add locale redirect head script * chore: adjust compact * docs: fix missing token * feat: compact switch * chore: code clean * docs: update home * docs: fix radius token * docs: hash of it * chore: adjust home page * docs: Add background map * docs: site theme bac logic * docs: avatar * docs: update logo color * docs: home banner * docs: adjust tour size * docs: purepanl update * docs: transfooter * docs: update banner gif * docs: content (#38361) * docs: title & EditButton * docs: content * chore: fix toc * docs: resource page * docs: transform resource data from hast * docs: filename & Resource Card * chore: enable prerender * chore: remove less * docs: toc style * chore: fix lint * docs: fix Layout page * docs: fix CP page * chore: update demos * docs: workaround for export dynamic html * chore: enable demo eslint * docs: table style * fix: header shadow * chore: update snapshot * fix: toc style * docs: add title * docs: Adjust site * feat: helmet * docs: site css * fix: description * feat: toc debug * docs: update config-provider * feat: use colorPanel * fix: colorPanel value * feat: anchor ink ball style * feat: apply theme editor * fix: code block style * chore: update demo * chore: fix lint * chore: code clean * chore: update snapshot * feat: ts2js * chore: description * docs: site ready for ssr includes: - move client render logic to useEffect in site theme - extract antd cssinjs to a single css file like bisheng - workaround to support react@18 pipeableStream for emotion * chore: bump testing lib * docs: font size of title * chore: remove react-sortable-hoc * chore: update snapshot * chore: update script Co-authored-by: PeachScript <scdzwyxst@gmail.com> Co-authored-by: MadCcc <1075746765@qq.com> Co-authored-by: zqran <uuxnet@gmail.com> Co-authored-by: TrickyPi <530257315@qq.com> Co-authored-by: lijianan <574980606@qq.com>
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<code src="./demo/basic.tsx">基本</code>
<code src="./demo/basic-controlled.tsx">受控操作示例</code>
<code src="./demo/draggable.tsx">拖动示例</code>
<code src="./demo/dynamic.tsx">异步数据加载</code>
<code src="./demo/search.tsx">可搜索</code>
<code src="./demo/line.tsx">连接线</code>
<code src="./demo/customized-icon.tsx">自定义图标</code>
<code src="./demo/directory.tsx">目录</code>
<code src="./demo/switcher-icon.tsx">自定义展开/折叠图标</code>
<code src="./demo/virtual-scroll.tsx">虚拟滚动</code>
<code src="./demo/drag-debug.tsx" debug>Drag Debug</code>
<code src="./demo/big-data.tsx" debug>大数据</code>
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## API
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### Tree props
| 参数 | 说明 | 类型 | 默认值 | 版本 |
| --- | --- | --- | --- | --- | --- |
| allowDrop | 是否允许拖拽时放置在该节点 | ({ dropNode, dropPosition }) => boolean | - | |
| autoExpandParent | 是否自动展开父节点 | boolean | false | |
| blockNode | 是否节点占据一行 | boolean | false | |
| checkable | 节点前添加 Checkbox 复选框 | boolean | false | |
| checkedKeys | (受控)选中复选框的树节点(注意:父子节点有关联,如果传入父节点 key则子节点自动选中相应当子节点 key 都传入,父节点也自动选中。当设置 `checkable``checkStrictly`,它是一个有`checked`和`halfChecked`属性的对象,并且父子节点的选中与否不再关联 | string\[] \| {checked: string\[], halfChecked: string\[]} | \[] | |
| checkStrictly | checkable 状态下节点选择完全受控(父子节点选中状态不再关联) | boolean | false | |
| defaultCheckedKeys | 默认选中复选框的树节点 | string\[] | \[] | |
| defaultExpandAll | 默认展开所有树节点 | boolean | false | |
| defaultExpandedKeys | 默认展开指定的树节点 | string\[] | \[] | |
| defaultExpandParent | 默认展开父节点 | boolean | true | |
| defaultSelectedKeys | 默认选中的树节点 | string\[] | \[] | |
| disabled | 将树禁用 | boolean | false | |
| draggable | 设置节点可拖拽,可以通过 `icon: false` 关闭拖拽提示图标 | boolean \| ((node: DataNode) => boolean) \| { icon?: React.ReactNode \| false, nodeDraggable?: (node: DataNode) => boolean } | false | `config`: 4.17.0 |
| expandedKeys | (受控)展开指定的树节点 | string\[] | \[] | |
| fieldNames | 自定义节点 title、key、children 的字段 | object | { title: `title`, key: `key`, children: `children` } | 4.17.0 |
| filterTreeNode | 按需筛选树节点(高亮),返回 true | function(node) | - | |
| height | 设置虚拟滚动容器高度,设置后内部节点不再支持横向滚动 | number | - | |
| icon | 自定义树节点图标。 | ReactNode \| (props) => ReactNode | - | |
| loadData | 异步加载数据 | function(node) | - | |
| loadedKeys | (受控)已经加载的节点,需要配合 `loadData` 使用 | string\[] | \[] | |
| multiple | 支持点选多个节点(节点本身) | boolean | false | |
| rootClassName | 添加在 Tree 最外层的 className | string | - | 4.20.0 |
| rootStyle | 添加在 Tree 最外层的 style | CSSProperties | - | 4.20.0 |
| selectable | 是否可选中 | boolean | true | |
| selectedKeys | (受控)设置选中的树节点 | string\[] | - | |
| showIcon | 是否展示 TreeNode title 前的图标,没有默认样式,如设置为 true需要自行定义图标相关样式 | boolean | false | |
| showLine | 是否展示连接线 | boolean \| {showLeafIcon: boolean \| ReactNode | ((props: AntTreeNodeProps) => ReactNode)} | false | |
| switcherIcon | 自定义树节点的展开/折叠图标 | ReactNode \| ((props: AntTreeNodeProps) => ReactNode) | - | renderProps: 4.20.0 |
| titleRender | 自定义渲染节点 | (nodeData) => ReactNode | - | 4.5.0 |
| treeData | treeNodes 数据,如果设置则不需要手动构造 TreeNode 节点key 在整个树范围内唯一) | array&lt;{key, title, children, \[disabled, selectable]}> | - | |
| virtual | 设置 false 时关闭虚拟滚动 | boolean | true | 4.1.0 |
| onCheck | 点击复选框触发 | function(checkedKeys, e:{checked: bool, checkedNodes, node, event, halfCheckedKeys}) | - | |
| onDragEnd | dragend 触发时调用 | function({event, node}) | - | |
| onDragEnter | dragenter 触发时调用 | function({event, node, expandedKeys}) | - | |
| onDragLeave | dragleave 触发时调用 | function({event, node}) | - | |
| onDragOver | dragover 触发时调用 | function({event, node}) | - | |
| onDragStart | 开始拖拽时调用 | function({event, node}) | - | |
| onDrop | drop 触发时调用 | function({event, node, dragNode, dragNodesKeys}) | - | |
| onExpand | 展开/收起节点时触发 | function(expandedKeys, {expanded: bool, node}) | - | |
| onLoad | 节点加载完毕时触发 | function(loadedKeys, {event, node}) | - | |
| onRightClick | 响应右键点击 | function({event, node}) | - | |
| onSelect | 点击树节点触发 | function(selectedKeys, e:{selected: bool, selectedNodes, node, event}) | - | |
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### TreeNode props
| 参数 | 说明 | 类型 | 默认值 | |
| --- | --- | --- | --- | --- |
| checkable | 当树为 checkable 时,设置独立节点是否展示 Checkbox | boolean | - | |
| disableCheckbox | 禁掉 checkbox | boolean | false | |
| disabled | 禁掉响应 | boolean | false | |
| icon | 自定义图标。可接收组件props 为当前节点 props | ReactNode \| (props) => ReactNode | - | |
| isLeaf | 设置为叶子节点 (设置了 `loadData` 时有效)。为 `false` 时会强制将其作为父节点 | boolean | - | |
| key | 被树的 (default)ExpandedKeys / (default)CheckedKeys / (default)SelectedKeys 属性所用。注意:整个树范围内的所有节点的 key 值不能重复! | string | (内部计算出的节点位置) | |
| selectable | 设置节点是否可被选中 | boolean | true | |
| title | 标题 | ReactNode | `---` | |
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### DirectoryTree props
| 参数 | 说明 | 类型 | 默认值 |
| --- | --- | --- | --- |
| expandAction | 目录展开逻辑可选false \| `click` \| `doubleClick` | string \| boolean | `click` |
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## 注意
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`3.4.0` 之前:树节点可以有很多,但在设置 `checkable` 时,将会花费更多的计算时间,因此我们缓存了一些计算结果(`this.treeNodesStates`)来复用,避免多次重复计算,以此提高性能。但这也带来了一些限制,当你异步加载树节点时,你需要这样渲染树:
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```jsx
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{
this.state.treeData.length ? (
<Tree>
{this.state.treeData.map(data => (
<TreeNode />
))}
</Tree>
) : (
'loading tree'
);
}
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```
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### Tree 方法
| 名称 | 说明 |
| --- | --- |
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| scrollTo({ key: string \| number; align?: 'top' \| 'bottom' \| 'auto'; offset?: number }) | 虚拟滚动下,滚动到指定 key 条目 |
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## FAQ
### 在 showLine 时,如何隐藏子节点图标?
文件图标通过 switcherIcon 来实现,如果不需要你可以覆盖对应的样式:<https://codesandbox.io/s/883vo47xp8>
### defaultExpandAll 在异步加载数据时为何不生效?
`default` 前缀属性只有在初始化时生效,因而异步加载数据时 `defaultExpandAll` 已经执行完成。你可以通过受控 `expandedKeys` 或者在数据加载完成后渲染 Tree 来实现全部展开。
### 虚拟滚动的限制
虚拟滚动通过在仅渲染可视区域的元素来提升渲染性能。但是同时由于不会渲染所有节点,所以无法自动拓转横向宽度(比如超长 `title` 的横向滚动条)。
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### `disabled` 节点在树中的关系是什么?
Tree 通过传导方式进行数据变更。无论是展开还是勾选,它都会从变更的节点开始向上、向下传导变化,直到遍历的当前节点是 `disabled` 时停止。因而如果控制的节点本身为 `disabled` 时,那么它只会修改本身而不会影响其他节点。举例来说,一个父节点包含 3 个子节点,其中一个为 `disabled` 状态。那么勾选父节点,只会影响其余两个子节点变成勾选状态。勾选两个子节点后,无论 `disabled` 节点什么状态,父节点都会变成勾选状态。
这种传导终止的方式是为了防止通过勾选子节点使得 `disabled` 父节点变成勾选状态,而用户无法直接勾选 `disabled` 父节点更改其状态导致的交互矛盾。如果你有着自己的传导需求,可以通过 `checkStrictly` 自定义勾选逻辑。