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ant-design-vue/components/select/index.zh-CN.md

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3.0 ready (#4523) * refactor: transfer、tooltip (#4306) * refactor(transfer): use composition api (#4135) * refactor(transfer): use composition api * fix: remove console * refactor(tooltip): use composition api (#4059) * refactor(tooltip): use composition api * chore: useConfigInject * fix: remove useless * style: format code * refactor: transfer * refactor: tooltip Co-authored-by: ajuner <106791576@qq.com> * Refactor mentions (#4341) * refactor(mentions): use compositionAPI (#4313) * refactor: mentions * refactor: mentions Co-authored-by: ajuner <106791576@qq.com> * Refactor progress (#4358) * fix: timepicker error border not show #4331 * fix(UploadDragger): fix UploadDrager no export (#4334) * refactor(switch): support customize checked value #4329 (#4332) * refactor(switch): support customize checked value #4329 * test: add test case * refactor: update props name * refactor: update ts * refactor: optimize * style: uncheckedValue to unCheckedValue * test: update snap * feat: udpate switch ts * docs: remove ie11 * fix: tree-select throw error when use slot title * fix: TypeScript definition of Table interface for typescript 4.3.5 (#4353) * fix type for typescript 4.3.5 * Update interface.ts close #4296 * fix: dropdown submenu style error #4351 close #4351 * fix(notification): 完善notification类型 (#4346) * refactor(progress): use composition API (#4355) * refactor(progress): use composition API * refactor(vc-progress): update * refactor: progress * refactor: progress * fix: timepicker error border not show #4331 * fix(UploadDragger): fix UploadDrager no export (#4334) * refactor(switch): support customize checked value #4329 (#4332) * refactor(switch): support customize checked value #4329 * test: add test case * refactor: update props name * refactor: update ts * refactor: optimize * style: uncheckedValue to unCheckedValue * test: update snap * feat: udpate switch ts * docs: remove ie11 * fix: tree-select throw error when use slot title * fix: TypeScript definition of Table interface for typescript 4.3.5 (#4353) * fix type for typescript 4.3.5 * Update interface.ts close #4296 * fix: dropdown submenu style error #4351 close #4351 * fix(notification): 完善notification类型 (#4346) * refactor(progress): use composition API (#4355) * refactor(progress): use composition API * refactor(vc-progress): update * refactor: progress * refactor: progress Co-authored-by: Jarvis <35361626+fanhaoyuan@users.noreply.github.com> Co-authored-by: John <John60676@qq.com> Co-authored-by: 艾斯特洛 <axetroy.dev@gmail.com> Co-authored-by: zanllp <qc@zanllp.cn> * docs: add changelog * refactor: tree * refactor: tree * style: lint * refactor: tree * 热factor: tree * refactor: tree * refactor: tree * refactor: tree * refactor: directory tree * refactor: tree * refactor: tree-select * refactor: tree-select * refactor: tree-select * refactor: tree-select * refactor: tree-select * style: lint format * refactor: tree-select * refactor: tree-select * refactor: tree-select * refactor: tree-select * refactor: tree-select * refactor: tree-select * fix: upload ts error * fix: update tree title render & switchIcon * test: update tree test * feat: add VirtualScroll tree * refactor: datePicker & calendar & trigger (#4522) * style: update * test: update calendar test * test: update test * test: update test * refactor: slider * feat: update slider css * refactor: slider to ts * refactor: slider to ts * perf: update default itemHeight * test: update * fix: uddate ts type * fix: update skeleton * fix: update skeleton * refactor: update vc-pagination * refactor: pagination * refactor: timeline * refactor: steps * refactor: collapse * refactor: collapse * refactor: popconfirm * refactor: popover * refactor: dropdown * doc: merge doc * chore: vite for dev (#4602) * style: js to jsx * doc: add site * style: lint * style: format ts type * doc: update * style: format code * style: format site * doc: update * style: dmeo * style: format scripts * chore: remove sub-modules * chore: update vite * site: add site build * test: update snap * doc(select): add tip (#4606) * refactor: table (#4641) * refactor: table * refactor: table * refactor: table * refactor: table * refactor: table * refactor: table * refactor: table * refactor: table * refactor: table * fix: column not pass to cell * doc: uppate table * fix: update bodyCell headerCell * doc: remove examples * refactor: table * fix: table title not work * fix: table selection * fix: table checkStrictly * refactor: table * fix: table template error * feat: table support summary * test: update snap * perf: table * docs(table): fix ajax demo (#4639) * test: update table * refactor: remove old table * doc: update table doc * doc: update doc * doc: update select * doc: update summary Co-authored-by: John <John60676@qq.com> * doc: update doc * fix: menu arrow not work * test: update * doc: add next site * style: format * doc: update * doc: update site script * fix: expand icon not fixed * feat: use renderSlot * test: update table snap * feat: confirm support reactively * feat: configProvider.config * feat: message support configprovider.config * feat: notification support configprovider.config * doc: update doc * fix: typescript compile error * style: add import eslint * doc: update demo * chore: set transpileOnly true * style: fix eslint error * test: update snap * doc: update * test: mock date * test: update snap * chore: remove gulp-typescript (#4675) * feat: V3 form (#4678) * chore: update husky * perf: update formItem * perf: useInjectFormItemContext * fix: table ts error * doc: add Customized Form Controls demo * feat: export useInjectFormItemContext * doc: update form doc * doc: update doc * doc: update doc * feat: autocomplete support option slot * doc: update * feat: add form item rest * style: remove omit.js * refactor: autocomplete * doc: add changelog to site * doc: update site anchor * doc: update doc layout * test: update table test * doc: update * chore: udpate gulp script * chore: udpate gulp script * doc: add changelog * doc: update * test: ignore some test wait vue-test-utils * fix: form id error #4582 close #4582 * doc: add select Responsive demo * doc: remove temp doc Co-authored-by: ajuner <106791576@qq.com> Co-authored-by: Jarvis <35361626+fanhaoyuan@users.noreply.github.com> Co-authored-by: John <John60676@qq.com> Co-authored-by: 艾斯特洛 <axetroy.dev@gmail.com> Co-authored-by: zanllp <qc@zanllp.cn> Co-authored-by: Amour1688 <lcz_1996@foxmail.com>
3 years ago
---
category: Components
subtitle: 选择器
type: 数据录入
title: Select
cover: https://gw.alipayobjects.com/zos/alicdn/_0XzgOis7/Select.svg
---
下拉选择器。
## 何时使用
- 弹出一个下拉菜单给用户选择操作,用于代替原生的选择器,或者需要一个更优雅的多选器时。
- 当选项少时(少于 5 项),建议直接将选项平铺,使用 [Radio](/components/radio/) 是更好的选择。
## API
```html
<a-select>
<a-select-option value="lucy">lucy</a-select-option>
</a-select>
```
### Select props
| 参数 | 说明 | 类型 | 默认值 | 版本 |
| --- | --- | --- | --- | --- |
| allowClear | 支持清除 | boolean | false | |
| autoClearSearchValue | 是否在选中项后清空搜索框,只在 `mode``multiple``tags` 时有效。 | boolean | true | |
| autofocus | 默认获取焦点 | boolean | false | |
| bordered | 是否有边框 | boolean | true | |
| defaultActiveFirstOption | 是否默认高亮第一个选项。 | boolean | true | |
| disabled | 是否禁用 | boolean | false | |
| dropdownClassName | 下拉菜单的 className 属性 | string | - | |
| dropdownMatchSelectWidth | 下拉菜单和选择器同宽。默认将设置 `min-width`当值小于选择框宽度时会被忽略。false 时会关闭虚拟滚动 | boolean \| number | true | |
| dropdownRender | 自定义下拉框内容 | ({menuNode: VNode, props}) => VNode \| v-slot | - | |
| dropdownStyle | 下拉菜单的 style 属性 | object | - | |
| dropdownMenuStyle | dropdown 菜单自定义样式 | object | - | |
| filterOption | 是否根据输入项进行筛选。当其为一个函数时,会接收 `inputValue` `option` 两个参数,当 `option` 符合筛选条件时,应返回 `true`,反之则返回 `false`。 | boolean or function(inputValue, option) | true | |
| firstActiveValue | 默认高亮的选项 | string\|string\[] | - | |
| 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。 | Function(triggerNode) | () => document.body | |
| labelInValue | 是否把每个选项的 label 包装到 value 中,会把 Select 的 value 类型从 `string` 变为 `{key: string, label: vNodes}` 的格式 | boolean | false | |
| maxTagCount | 最多显示多少个 tag | number | - | |
| maxTagPlaceholder | 隐藏 tag 时显示的内容 | slot/function(omittedValues) | - | |
| maxTagTextLength | 最大显示的 tag 文本长度 | number | - | |
| mode | 设置 Select 的模式为多选或标签 | 'multiple' \| 'tags' \| 'combobox' | - | |
| notFoundContent | 当下拉列表为空时显示的内容 | string\|slot | 'Not Found' | |
| optionFilterProp | 搜索时过滤对应的 option 属性,不支持 children | string | value | |
| optionLabelProp | 回填到选择框的 Option 的属性值,默认是 Option 的子元素。比如在子元素需要高亮效果时,此值可以设为 `value`。 | string | `children` \| `label`(设置 options 时) | |
3.0 ready (#4523) * refactor: transfer、tooltip (#4306) * refactor(transfer): use composition api (#4135) * refactor(transfer): use composition api * fix: remove console * refactor(tooltip): use composition api (#4059) * refactor(tooltip): use composition api * chore: useConfigInject * fix: remove useless * style: format code * refactor: transfer * refactor: tooltip Co-authored-by: ajuner <106791576@qq.com> * Refactor mentions (#4341) * refactor(mentions): use compositionAPI (#4313) * refactor: mentions * refactor: mentions Co-authored-by: ajuner <106791576@qq.com> * Refactor progress (#4358) * fix: timepicker error border not show #4331 * fix(UploadDragger): fix UploadDrager no export (#4334) * refactor(switch): support customize checked value #4329 (#4332) * refactor(switch): support customize checked value #4329 * test: add test case * refactor: update props name * refactor: update ts * refactor: optimize * style: uncheckedValue to unCheckedValue * test: update snap * feat: udpate switch ts * docs: remove ie11 * fix: tree-select throw error when use slot title * fix: TypeScript definition of Table interface for typescript 4.3.5 (#4353) * fix type for typescript 4.3.5 * Update interface.ts close #4296 * fix: dropdown submenu style error #4351 close #4351 * fix(notification): 完善notification类型 (#4346) * refactor(progress): use composition API (#4355) * refactor(progress): use composition API * refactor(vc-progress): update * refactor: progress * refactor: progress * fix: timepicker error border not show #4331 * fix(UploadDragger): fix UploadDrager no export (#4334) * refactor(switch): support customize checked value #4329 (#4332) * refactor(switch): support customize checked value #4329 * test: add test case * refactor: update props name * refactor: update ts * refactor: optimize * style: uncheckedValue to unCheckedValue * test: update snap * feat: udpate switch ts * docs: remove ie11 * fix: tree-select throw error when use slot title * fix: TypeScript definition of Table interface for typescript 4.3.5 (#4353) * fix type for typescript 4.3.5 * Update interface.ts close #4296 * fix: dropdown submenu style error #4351 close #4351 * fix(notification): 完善notification类型 (#4346) * refactor(progress): use composition API (#4355) * refactor(progress): use composition API * refactor(vc-progress): update * refactor: progress * refactor: progress Co-authored-by: Jarvis <35361626+fanhaoyuan@users.noreply.github.com> Co-authored-by: John <John60676@qq.com> Co-authored-by: 艾斯特洛 <axetroy.dev@gmail.com> Co-authored-by: zanllp <qc@zanllp.cn> * docs: add changelog * refactor: tree * refactor: tree * style: lint * refactor: tree * 热factor: tree * refactor: tree * refactor: tree * refactor: tree * refactor: directory tree * refactor: tree * refactor: tree-select * refactor: tree-select * refactor: tree-select * refactor: tree-select * refactor: tree-select * style: lint format * refactor: tree-select * refactor: tree-select * refactor: tree-select * refactor: tree-select * refactor: tree-select * refactor: tree-select * fix: upload ts error * fix: update tree title render & switchIcon * test: update tree test * feat: add VirtualScroll tree * refactor: datePicker & calendar & trigger (#4522) * style: update * test: update calendar test * test: update test * test: update test * refactor: slider * feat: update slider css * refactor: slider to ts * refactor: slider to ts * perf: update default itemHeight * test: update * fix: uddate ts type * fix: update skeleton * fix: update skeleton * refactor: update vc-pagination * refactor: pagination * refactor: timeline * refactor: steps * refactor: collapse * refactor: collapse * refactor: popconfirm * refactor: popover * refactor: dropdown * doc: merge doc * chore: vite for dev (#4602) * style: js to jsx * doc: add site * style: lint * style: format ts type * doc: update * style: format code * style: format site * doc: update * style: dmeo * style: format scripts * chore: remove sub-modules * chore: update vite * site: add site build * test: update snap * doc(select): add tip (#4606) * refactor: table (#4641) * refactor: table * refactor: table * refactor: table * refactor: table * refactor: table * refactor: table * refactor: table * refactor: table * refactor: table * fix: column not pass to cell * doc: uppate table * fix: update bodyCell headerCell * doc: remove examples * refactor: table * fix: table title not work * fix: table selection * fix: table checkStrictly * refactor: table * fix: table template error * feat: table support summary * test: update snap * perf: table * docs(table): fix ajax demo (#4639) * test: update table * refactor: remove old table * doc: update table doc * doc: update doc * doc: update select * doc: update summary Co-authored-by: John <John60676@qq.com> * doc: update doc * fix: menu arrow not work * test: update * doc: add next site * style: format * doc: update * doc: update site script * fix: expand icon not fixed * feat: use renderSlot * test: update table snap * feat: confirm support reactively * feat: configProvider.config * feat: message support configprovider.config * feat: notification support configprovider.config * doc: update doc * fix: typescript compile error * style: add import eslint * doc: update demo * chore: set transpileOnly true * style: fix eslint error * test: update snap * doc: update * test: mock date * test: update snap * chore: remove gulp-typescript (#4675) * feat: V3 form (#4678) * chore: update husky * perf: update formItem * perf: useInjectFormItemContext * fix: table ts error * doc: add Customized Form Controls demo * feat: export useInjectFormItemContext * doc: update form doc * doc: update doc * doc: update doc * feat: autocomplete support option slot * doc: update * feat: add form item rest * style: remove omit.js * refactor: autocomplete * doc: add changelog to site * doc: update site anchor * doc: update doc layout * test: update table test * doc: update * chore: udpate gulp script * chore: udpate gulp script * doc: add changelog * doc: update * test: ignore some test wait vue-test-utils * fix: form id error #4582 close #4582 * doc: add select Responsive demo * doc: remove temp doc Co-authored-by: ajuner <106791576@qq.com> Co-authored-by: Jarvis <35361626+fanhaoyuan@users.noreply.github.com> Co-authored-by: John <John60676@qq.com> Co-authored-by: 艾斯特洛 <axetroy.dev@gmail.com> Co-authored-by: zanllp <qc@zanllp.cn> Co-authored-by: Amour1688 <lcz_1996@foxmail.com>
3 years ago
| placeholder | 选择框默认文字 | string\|slot | - | |
| showSearch | 使单选模式可搜索 | boolean | false | |
| showArrow | 是否显示下拉小箭头 | boolean | true | |
| size | 选择框大小,可选 `large` `small` | string | default | |
| suffixIcon | 自定义的选择框后缀图标 | VNode \| slot | - | |
| removeIcon | 自定义的多选框清除图标 | VNode \| slot | - | |
| clearIcon | 自定义的多选框清空图标 | VNode \| slot | - | |
| menuItemSelectedIcon | 自定义当前选中的条目图标 | VNode \| slot | - | |
| tokenSeparators | 在 tags 和 multiple 模式下自动分词的分隔符 | string\[] | | |
| value(v-model) | 指定当前选中的条目 | string\|string\[]\|number\|number\[] | - | |
| options | options 数据,如果设置则不需要手动构造 selectOption 节点 | array&lt;{value, label, [disabled, key, title]}> | \[] | |
| option | 通过 option 插槽,自定义节点 | v-slot:option="{value, label, [disabled, key, title]}" | - | 2.2.5 |
| defaultOpen | 是否默认展开下拉菜单 | boolean | - | |
| open | 是否展开下拉菜单 | boolean | - | |
> 注意,如果发现下拉菜单跟随页面滚动,或者需要在其他弹层中触发 Select请尝试使用 `getPopupContainer={triggerNode => triggerNode.parentNode}` 将下拉弹层渲染节点固定在触发器的父元素中。
### 事件
| 事件名称 | 说明 | 回调参数 |
| --- | --- | --- |
| blur | 失去焦点的时回调 | function |
| change | 选中 option或 input 的 value 变化combobox 模式下)时,调用此函数 | function(value, option:Option/Array&lt;Option>) |
| deselect | 取消选中时调用,参数为选中项的 value (或 key) 值,仅在 multiple 或 tags 模式下生效 | function(valueoption:Option) |
| focus | 获得焦点时回调 | function |
| inputKeyDown | 键盘按下时回调 | function |
| mouseenter | 鼠标移入时回调 | function |
| mouseleave | 鼠标移出时回调 | function |
| popupScroll | 下拉列表滚动时的回调 | function |
| search | 文本框值变化时回调 | function(value: string) |
| select | 被选中时调用,参数为选中项的 value (或 key) 值 | function(value, option:Option) |
| dropdownVisibleChange | 展开下拉菜单的回调 | function(open) |
### Select Methods
| 名称 | 说明 |
| ------- | -------- |
| blur() | 取消焦点 |
| focus() | 获取焦点 |
### Option props
| 参数 | 说明 | 类型 | 默认值 |
| --- | --- | --- | --- |
| disabled | 是否禁用 | boolean | false |
| key | 和 value 含义一致。如果 Vue 需要你设置此项,此项值与 value 的值相同,然后可以省略 value 设置 | string | |
| title | 选中该 Option 后Select 的 title | string | - |
| value | 默认根据此属性值进行筛选 | string\|number | - |
| class | Option 器类名 | string | - |
### OptGroup props
| 参数 | 说明 | 类型 | 默认值 |
| ----- | ---- | --------------------------- | ------ |
| key | | string | - |
| label | 组名 | string\|\|function(h)\|slot | 无 |
## FAQ
### 点击 `dropdownRender` 里的内容浮层关闭怎么办?
看下 [dropdownRender 例子](/components/select-cn/#components-select-demo-custom-dropdown) 里的说明。
### 为什么 `placeholder` 不显示
`placeholder` 只有在 value = undefined 才会显示,对于其它的 null、0、'' 等等对于 JS 语言都是有意义的值。
你可以查看 [JS 语言规范](https://262.ecma-international.org/5.1/#sec-4.3.9) 进一步了解详情。
也可以查看 [antd issue](https://github.com/ant-design/ant-design/issues/2367) 查看讨论情况。