ant-design/components/dropdown/index.zh-CN.md
ice eac5b6893d
feat(menu): support extra prop (#50431)
* feat(dropdown): support extra prop

* text: fix items

* Update components/menu/style/index.ts

Co-authored-by: lijianan <574980606@qq.com>
Signed-off-by: ice <49827327+coding-ice@users.noreply.github.com>

* Update package.json

Co-authored-by: lijianan <574980606@qq.com>
Signed-off-by: ice <49827327+coding-ice@users.noreply.github.com>

* style: css

* chore: bump rc-menu from 9.15.1 to 9.15.0

* style: classname

* test: clsname

* chore: rc-menu to ^9.15.1

* chore: rc-menu version from ^ to ~

* chore: update deps

* feat: full width

* fix: children is array

* fix: default array

* fix: label

* test: update snap

* test: case

---------

Signed-off-by: ice <49827327+coding-ice@users.noreply.github.com>
Co-authored-by: lijianan <574980606@qq.com>
2024-09-03 07:15:18 +08:00

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---
category: Components
group: 导航
title: Dropdown
subtitle: 下拉菜单
description: 向下弹出的列表。
cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*gTBySYX11WcAAAAAAAAAAAAADrJ8AQ/original
coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*k619RJ_7bKEAAAAAAAAAAAAADrJ8AQ/original
demo:
cols: 2
---
## 何时使用
当页面上的操作命令过多时,用此组件可以收纳操作元素。点击或移入触点,会出现一个下拉菜单。可在列表中进行选择,并执行相应的命令。
- 用于收罗一组命令操作。
- Select 用于选择,而 Dropdown 是命令集合。
## 代码演示
<!-- prettier-ignore -->
<code src="./demo/basic.tsx">基本</code>
<code src="./demo/extra.tsx" version="5.21.0">额外节点</code>
<code src="./demo/placement.tsx">弹出位置</code>
<code src="./demo/arrow.tsx">箭头</code>
<code src="./demo/item.tsx">其他元素</code>
<code src="./demo/arrow-center.tsx">箭头指向</code>
<code src="./demo/trigger.tsx">触发方式</code>
<code src="./demo/event.tsx">触发事件</code>
<code src="./demo/dropdown-button.tsx">带下拉框的按钮</code>
<code src="./demo/custom-dropdown.tsx">扩展菜单</code>
<code src="./demo/sub-menu.tsx">多级菜单</code>
<code src="./demo/sub-menu-debug.tsx" debug>多级菜单</code>
<code src="./demo/overlay-open.tsx">菜单隐藏方式</code>
<code src="./demo/context-menu.tsx">右键菜单</code>
<code src="./demo/loading.tsx">加载中状态</code>
<code src="./demo/selectable.tsx">菜单可选选择</code>
<code src="./demo/menu-full.tsx" debug>Menu 完整样式</code>
<code src="./demo/render-panel.tsx" debug>\_InternalPanelDoNotUseOrYouWillBeFired</code>
<code src="./demo/icon-debug.tsx" debug>Icon debug</code>
## API
通用属性参考:[通用属性](/docs/react/common-props)
### Dropdown
| 参数 | 说明 | 类型 | 默认值 | 版本 |
| --- | --- | --- | --- | --- |
| arrow | 下拉框箭头是否显示 | boolean \| { pointAtCenter: boolean } | false | |
| autoAdjustOverflow | 下拉框被遮挡时自动调整位置 | boolean | true | 5.2.0 |
| autoFocus | 打开后自动聚焦下拉框 | boolean | false | 4.21.0 |
| disabled | 菜单是否禁用 | boolean | - | |
| destroyPopupOnHide | 关闭后是否销毁 Dropdown | boolean | false | |
| dropdownRender | 自定义下拉框内容 | (menus: ReactNode) => ReactNode | - | 4.24.0 |
| getPopupContainer | 菜单渲染父节点。默认渲染到 body 上,如果你遇到菜单滚动定位问题,试试修改为滚动的区域,并相对其定位。[示例](https://codepen.io/afc163/pen/zEjNOy?editors=0010) | (triggerNode: HTMLElement) => HTMLElement | () => document.body | |
| menu | 菜单配置项 | [MenuProps](/components/menu-cn#api) | - | 4.24.0 |
| overlayClassName | 下拉根元素的类名称 | string | - | |
| overlayStyle | 下拉根元素的样式 | CSSProperties | - | |
| placement | 菜单弹出位置:`bottom` `bottomLeft` `bottomRight` `top` `topLeft` `topRight` | string | `bottomLeft` | |
| trigger | 触发下拉的行为,移动端不支持 hover | Array&lt;`click`\|`hover`\|`contextMenu`> | \[`hover`] | |
| open | 菜单是否显示,小于 4.23.0 使用 `visible`[为什么?](/docs/react/faq#弹层类组件为什么要统一至-open-属性) | boolean | - | 4.23.0 |
| onOpenChange | 菜单显示状态改变时调用,点击菜单按钮导致的消失不会触发。小于 4.23.0 使用 `onVisibleChange`[为什么?](/docs/react/faq#弹层类组件为什么要统一至-open-属性) | (open: boolean, info: { source: 'trigger' \| 'menu' }) => void | - | `info.source`: 5.11.0 |
### Dropdown.Button
属性与 Dropdown 的相同。还包含以下属性:
| 参数 | 说明 | 类型 | 默认值 | 版本 |
| --- | --- | --- | --- | --- |
| buttonsRender | 自定义左右两个按钮 | (buttons: ReactNode\[]) => ReactNode\[] | - | |
| loading | 设置按钮载入状态 | boolean \| { delay: number } | false | |
| danger | 设置危险按钮 | boolean | - | 4.23.0 |
| icon | 右侧的 icon | ReactNode | - | |
| size | 按钮大小,和 [Button](/components/button-cn#api) 一致 | string | `default` | |
| type | 按钮类型,和 [Button](/components/button-cn#api) 一致 | string | `default` | |
| onClick | 点击左侧按钮的回调,和 [Button](/components/button-cn#api) 一致 | (event) => void | - | |
## 注意
请确保 `Dropdown` 的子元素能接受 `onMouseEnter`、`onMouseLeave`、`onFocus`、`onClick` 事件。
## 主题变量Design Token
<ComponentTokenTable component="Dropdown"></ComponentTokenTable>
## FAQ
### Dropdown 在水平方向超出屏幕时会被挤压该怎么办?
你可以通过 `width: max-content` 来解决这个问题,参考 [#43025](https://github.com/ant-design/ant-design/issues/43025#issuecomment-1594394135)。