2016-03-31 14:17:09 +08:00
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---
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category: Components
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2016-09-21 11:28:38 +08:00
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subtitle: 下拉菜单
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2022-11-09 12:28:04 +08:00
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group: 导航
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2016-09-21 11:28:38 +08:00
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title: Dropdown
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2022-11-30 20:14:41 +08:00
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cover: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*mBBcQ6goljkAAAAAAAAAAAAADrJ8AQ/original
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2022-11-09 12:28:04 +08:00
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demo:
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cols: 2
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2016-03-31 14:17:09 +08:00
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---
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2015-06-08 19:10:47 +08:00
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2015-06-14 17:54:08 +08:00
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向下弹出的列表。
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2015-06-08 19:10:47 +08:00
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## 何时使用
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2015-08-21 15:22:09 +08:00
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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。
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2015-06-08 19:10:47 +08:00
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2020-06-03 16:28:06 +08:00
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- 用于收罗一组命令操作。
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- Select 用于选择,而 Dropdown 是命令集合。
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2022-11-09 12:28:04 +08:00
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## 代码演示
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2022-11-17 17:31:26 +08:00
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<!-- prettier-ignore -->
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2022-11-09 12:28:04 +08:00
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<code src="./demo/basic.tsx">基本</code>
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<code src="./demo/placement.tsx">弹出位置</code>
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<code src="./demo/arrow.tsx">箭头</code>
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<code src="./demo/item.tsx">其他元素</code>
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<code src="./demo/arrow-center.tsx">箭头指向</code>
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<code src="./demo/trigger.tsx">触发方式</code>
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<code src="./demo/event.tsx">触发事件</code>
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<code src="./demo/dropdown-button.tsx">带下拉框的按钮</code>
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<code src="./demo/custom-dropdown.tsx">扩展菜单</code>
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<code src="./demo/sub-menu.tsx">多级菜单</code>
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<code src="./demo/overlay-open.tsx">菜单隐藏方式</code>
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<code src="./demo/context-menu.tsx">右键菜单</code>
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<code src="./demo/loading.tsx">加载中状态</code>
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<code src="./demo/selectable.tsx">菜单可选选择</code>
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<code src="./demo/menu-full.tsx" debug>Menu 完整样式</code>
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<code src="./demo/render-panel.tsx" debug>\_InternalPanelDoNotUseOrYouWillBeFired</code>
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2015-06-08 19:10:47 +08:00
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## API
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属性如下
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2022-11-17 17:31:26 +08:00
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| 参数 | 说明 | 类型 | 默认值 | 版本 |
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| --- | --- | --- | --- | --- |
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| arrow | 下拉框箭头是否显示 | boolean \| { pointAtCenter: boolean } | false | |
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2022-12-22 17:56:02 +08:00
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| autoAdjustOverflow | 下拉框被遮挡时自动调整位置 | boolean | true | 5.2.0 |
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2022-11-17 17:31:26 +08:00
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| autoFocus | 打开后自动聚焦下拉框 | boolean | false | 4.21.0 |
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| disabled | 菜单是否禁用 | boolean | - | |
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| destroyPopupOnHide | 关闭后是否销毁 Dropdown | boolean | false | |
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| dropdownRender | 自定义下拉框内容 | (menus: ReactNode) => ReactNode | - | 4.24.0 |
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| 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 | |
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2022-12-22 14:12:26 +08:00
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| menu | 菜单配置项 | [MenuProps](/components/menu-cn#api) | - | 4.24.0 |
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2022-11-17 17:31:26 +08:00
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| overlayClassName | 下拉根元素的类名称 | string | - | |
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| overlayStyle | 下拉根元素的样式 | CSSProperties | - | |
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| placement | 菜单弹出位置:`bottom` `bottomLeft` `bottomRight` `top` `topLeft` `topRight` | string | `bottomLeft` | |
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| trigger | 触发下拉的行为, 移动端不支持 hover | Array<`click`\|`hover`\|`contextMenu`> | \[`hover`] | |
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| open | 菜单是否显示,小于 4.23.0 使用 `visible`([为什么?](/docs/react/faq#why-open)) | boolean | - | 4.23.0 |
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| 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#why-open)) | (open: boolean) => void | - | 4.23.0 |
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2015-06-08 19:10:47 +08:00
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2016-09-15 01:21:48 +08:00
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### Dropdown.Button
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2015-12-02 15:18:15 +08:00
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2022-10-23 00:33:45 +08:00
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属性与 Dropdown 的相同。还包含以下属性:
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2022-11-17 17:31:26 +08:00
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| 参数 | 说明 | 类型 | 默认值 | 版本 |
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| --- | --- | --- | --- | --- |
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| buttonsRender | 自定义左右两个按钮 | (buttons: ReactNode\[]) => ReactNode\[] | - | |
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| loading | 设置按钮载入状态 | boolean \| { delay: number } | false | |
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| danger | 设置危险按钮 | boolean | - | 4.23.0 |
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| icon | 右侧的 icon | ReactNode | - | |
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2022-12-22 14:12:26 +08:00
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| size | 按钮大小,和 [Button](/components/button-cn#api) 一致 | string | `default` | |
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| type | 按钮类型,和 [Button](/components/button-cn#api) 一致 | string | `default` | |
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| onClick | 点击左侧按钮的回调,和 [Button](/components/button-cn#api) 一致 | (event) => void | - | |
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