amis/docs/zh-CN/components/form/select.md

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---
title: Select 选择器
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description:
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type: 0
group: null
menuName: Select 选择器
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icon:
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order: 48
---
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## 基本用法
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参考 [Options](options)
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## 自定义菜单
```schema: scope="body"
{
"type": "form",
"body": [
{
"label": "选项",
"type": "select",
"name": "select",
"menuTpl": "<div>${label} 值:${value}, 当前是否选中: ${checked}</div>",
"options": [
{
"label":"A",
"value":"a"
},
{
"label":"B",
"value":"b"
},
{
"label":"C",
"value":"c"
}
]
}
]
}
```
### 分组展示模式
_单选_
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "分组",
"type": "select",
"name": "a",
"selectMode": "group",
"options": [
{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"children": [
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
}
]
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
]
}
]
}
```
_多选_
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "分组",
"type": "select",
"name": "a",
"multiple": true,
"selectMode": "group",
"options": [
{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"children": [
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
}
]
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
]
}
]
}
```
### 表格模式
需要额外配置 `columns` 配置,参考 Table 中的说明。
_单选_
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "表格形式",
"type": "select",
"name": "a",
"selectMode": "table",
"columns": [
{
"name": "label",
"label": "英雄"
},
{
"name": "position",
"label": "位置"
}
],
"options": [
{
"label": "诸葛亮",
"value": "zhugeliang",
"position": "中单"
},
{
"label": "曹操",
"value": "caocao",
"position": "上单"
},
{
"label": "钟无艳",
"value": "zhongwuyan",
"position": "上单"
},
{
"label": "李白",
"value": "libai",
"position": "打野"
},
{
"label": "韩信",
"value": "hanxin",
"position": "打野"
},
{
"label": "云中君",
"value": "yunzhongjun",
"position": "打野"
}
]
}
]
}
```
_多选_
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "表格形式",
"type": "select",
"name": "a",
"selectMode": "table",
"multiple": true,
"columns": [
{
"name": "label",
"label": "英雄"
},
{
"name": "position",
"label": "位置"
}
],
"options": [
{
"label": "诸葛亮",
"value": "zhugeliang",
"position": "中单"
},
{
"label": "曹操",
"value": "caocao",
"position": "上单"
},
{
"label": "钟无艳",
"value": "zhongwuyan",
"position": "上单"
},
{
"label": "李白",
"value": "libai",
"position": "打野"
},
{
"label": "韩信",
"value": "hanxin",
"position": "打野"
},
{
"label": "云中君",
"value": "yunzhongjun",
"position": "打野"
}
]
}
]
}
```
### 树形模式
_单选_
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "树型展示",
"type": "select",
"name": "a",
"selectMode": "tree",
"options": [
{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"children": [
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
}
]
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
]
}
]
}
```
_多选_
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "树型展示",
"type": "select",
"name": "a",
"multiple": true,
"selectMode": "tree",
"options": [
{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"children": [
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
}
]
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
]
}
]
}
```
### 级联选择
按列来点选。
_单选_
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "级联选择",
"type": "select",
"name": "a",
"selectMode": "chained",
"options": [
{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"children": [
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
}
]
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
]
}
]
}
```
_多选_
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "级联选择",
"type": "select",
"name": "a",
"selectMode": "chained",
"multiple": true,
"options": [
{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"children": [
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
}
]
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
]
}
]
}
```
### 支持搜索
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "带搜索",
"type": "select",
"name": "a",
"selectMode": "chained",
"searchable": true,
"sortable": true,
"multiple": true,
"options": [
{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"children": [
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
}
]
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
]
}
]
}
```
### 延时加载
选型设置 defer: true结合配置组件层的 `deferApi` 来实现。
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "延时加载",
"type": "select",
"name": "a",
"multiple": true,
"selectMode": "tree",
"deferApi": "/api/mock2/form/deferOptions?label=${label}&waitSeconds=2",
"options": [
{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"defer": true
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
]
}
]
}
```
### 关联选择模式
分为左右两部分,左边点选后关联出现右边。左右都可以配置展示模式。
_单选_
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "关联选择模式",
"type": "select",
"name": "b",
"sortable": true,
"searchable": true,
"deferApi": "/api/mock2/form/deferOptions?label=${label}",
"selectMode": "associated",
"leftMode": "tree",
"leftOptions": [
{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"children": [
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
}
]
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
],
"options": [
{
"ref": "zhugeliang",
"children": [
{
"label": "A",
"value": "a"
}
]
},
{
"ref": "caocao",
"children": [
{
"label": "B",
"value": "b"
},
{
"label": "C",
"value": "c"
}
]
},
{
"ref": "zhongwuyan",
"children": [
{
"label": "D",
"value": "d"
},
{
"label": "E",
"value": "e"
}
]
},
{
"ref": "libai",
"defer": true
},
{
"ref": "hanxin",
"defer": true
},
{
"ref": "yunzhongjun",
"defer": true
}
]
}
]
}
```
_多选_
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "关联选择模式",
"type": "select",
"name": "b",
"multiple": true,
"sortable": true,
"searchable": true,
"deferApi": "/api/mock2/form/deferOptions?label=${label}",
"selectMode": "associated",
"leftMode": "tree",
"leftOptions": [
{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"children": [
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
}
]
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
],
"options": [
{
"ref": "zhugeliang",
"children": [
{
"label": "A",
"value": "a"
}
]
},
{
"ref": "caocao",
"children": [
{
"label": "B",
"value": "b"
},
{
"label": "C",
"value": "c"
}
]
},
{
"ref": "zhongwuyan",
"children": [
{
"label": "D",
"value": "d"
},
{
"label": "E",
"value": "e"
}
]
},
{
"ref": "libai",
"defer": true
},
{
"ref": "hanxin",
"defer": true
},
{
"ref": "yunzhongjun",
"defer": true
}
]
}
]
}
```
leftOptions 动态加载,默认 source 接口是返回 options 部分,而 leftOptions 是没有对应的接口可以动态返回了。为了方便,目前如果 source 接口返回的选中中,第一个 option 是以下这种格式则也会把 options[0].leftOptions 当成 leftOptions, options[0].children 当 options。同时 options[0].leftDefaultValue 可以用来配置左侧选项的默认值。
```
{
status: 0,
msg: '',
data: {
options: [
{
leftOptions: [],
children: [],
leftDefaultValue: ''
}
]
}
}
```
### 人员点选
> 请通过网络面板查看接口请求返回。
实际上就是采用的[「关联选择模式」](#关联选择模式)的 select注意要看那一部分文档需要知道怎么动态加载 leftOptions。左侧部分和人员都是通过 source 接口返回。需要懒加载的项通过设置 `defer` 为 true 来标记。左右两部分都支持懒加载。
都是通过 deferApi 来实现,后端根据传过来的参数决定是懒加载树,还是栏加载人员。
- 有 dep 值则是懒加载部门树
- 有 ref 值则是懒加载人员
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "人员选择",
"type": "select",
"name": "b",
"multiple": true,
"sortable": true,
"searchable": true,
"selectMode": "associated",
"leftMode": "tree",
"source": "/api/mock2/form/departUser",
"deferApi": "/api/mock2/form/departUser?ref=${ref}&dep=${value}"
}
]
}
```
## searchApi
**发送**
默认 GET携带 term 变量,值为搜索框输入的文字,可从上下文中取数据设置进去。
**响应**
格式要求如下:
```json
{
"status": 0,
"msg": "",
"data": {
"options": [
{
"label": "描述",
"value": "值" // ,
// "children": [] // 可以嵌套
},
{
"label": "描述2",
"value": "值2"
}
],
"value": "值" // 默认值,可以获取列表的同时设置默认值。
}
}
```
适用于需选择的数据/信息源较多时,用户可直观的知道自己所选择的数据/信息的场景,一般左侧框为数据/信息源,右侧为已选数据/信息,被选中信息同时存在于 2 个框内。
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## 属性表
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除了支持 [普通表单项属性表](./formitem#%E5%B1%9E%E6%80%A7%E8%A1%A8) 中的配置以外,还支持下面一些配置
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| 属性名 | 类型 | 默认值 | 说明 |
| ---------------- | --------------------------------------------------------------------------------- | ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| options | `Array<object>`或`Array<string>` | | [选项组](./options#%E9%9D%99%E6%80%81%E9%80%89%E9%A1%B9%E7%BB%84-options) |
| source | [API](../../../docs/types/api) 或 [数据映射](../../../docs/concepts/data-mapping) | | [动态选项组](./options#%E5%8A%A8%E6%80%81%E9%80%89%E9%A1%B9%E7%BB%84-source) |
| autoComplete | [API](../../../docs/types/api) | | [自动提示补全](./options#%E8%87%AA%E5%8A%A8%E8%A1%A5%E5%85%A8-autocomplete) |
2022-03-01 23:12:49 +08:00
| delimiter | `string` | `false` | [拼接符](./options#%E6%8B%BC%E6%8E%A5%E7%AC%A6-delimiter) |
| labelField | `string` | `"label"` | [选项标签字段](./options#%E9%80%89%E9%A1%B9%E6%A0%87%E7%AD%BE%E5%AD%97%E6%AE%B5-labelfield) |
| valueField | `string` | `"value"` | [选项值字段](./options#%E9%80%89%E9%A1%B9%E5%80%BC%E5%AD%97%E6%AE%B5-valuefield) |
| joinValues | `boolean` | `true` | [拼接值](./options#%E6%8B%BC%E6%8E%A5%E5%80%BC-joinvalues) |
| extractValue | `boolean` | `false` | [提取值](./options#%E6%8F%90%E5%8F%96%E5%A4%9A%E9%80%89%E5%80%BC-extractvalue) |
| checkAll | `boolean` | `false` | 是否支持全选 |
| checkAllLabel | `string` | `全选` | 全选的文字 |
| checkAllBySearch | `boolean` | `false` | 有检索时只全选检索命中的项 |
| defaultCheckAll | `boolean` | `false` | 默认是否全选 |
| creatable | `boolean` | `false` | [新增选项](./options#%E5%89%8D%E7%AB%AF%E6%96%B0%E5%A2%9E-creatable) |
| multiple | `boolean` | `false` | [多选](./options#多选-multiple) |
| searchable | `boolean` | `false` | [检索](./options#检索-searchable) |
| createBtnLabel | `string` | `"新增选项"` | [新增选项](./options#%E6%96%B0%E5%A2%9E%E9%80%89%E9%A1%B9) |
| addControls | Array<[表单项](./formitem)> | | [自定义新增表单项](./options#%E8%87%AA%E5%AE%9A%E4%B9%89%E6%96%B0%E5%A2%9E%E8%A1%A8%E5%8D%95%E9%A1%B9-addcontrols) |
| addApi | [API](../../docs/types/api) | | [配置新增选项接口](./options#%E9%85%8D%E7%BD%AE%E6%96%B0%E5%A2%9E%E6%8E%A5%E5%8F%A3-addapi) |
| editable | `boolean` | `false` | [编辑选项](./options#%E5%89%8D%E7%AB%AF%E7%BC%96%E8%BE%91-editable) |
| editControls | Array<[表单项](./formitem)> | | [自定义编辑表单项](./options#%E8%87%AA%E5%AE%9A%E4%B9%89%E7%BC%96%E8%BE%91%E8%A1%A8%E5%8D%95%E9%A1%B9-editcontrols) |
| editApi | [API](../../docs/types/api) | | [配置编辑选项接口](./options#%E9%85%8D%E7%BD%AE%E7%BC%96%E8%BE%91%E6%8E%A5%E5%8F%A3-editapi) |
| removable | `boolean` | `false` | [删除选项](./options#%E5%88%A0%E9%99%A4%E9%80%89%E9%A1%B9) |
| deleteApi | [API](../../docs/types/api) | | [配置删除选项接口](./options#%E9%85%8D%E7%BD%AE%E5%88%A0%E9%99%A4%E6%8E%A5%E5%8F%A3-deleteapi) |
| autoFill | `object` | | [自动填充](./options#%E8%87%AA%E5%8A%A8%E5%A1%AB%E5%85%85-autofill) |
| menuTpl | `string` | | 支持配置自定义菜单 |
| clearable | `boolean` | | 单选模式下是否支持清空 |
| hideSelected | `boolean` | `false` | 隐藏已选选项 |
| mobileClassName | `string` | | 移动端浮层类名 |
| selectMode | `string` | `` | 可选:`group`、`table`、`tree`、`chained`、`associated`。分别为:列表形式、表格形式、树形选择形式、级联选择形式,关联选择形式(与级联选择的区别在于,级联是无限极,而关联只有一级,关联左边可以是个 tree。 |
| searchResultMode | `string` | | 如果不设置将采用 `selectMode` 的值,可以单独配置,参考 `selectMode`,决定搜索结果的展示形式。 |
| columns | `Array<Object>` | | 当展示形式为 `table` 可以用来配置展示哪些列,跟 table 中的 columns 配置相似,只是只有展示功能。 |
| leftOptions | `Array<Object>` | | 当展示形式为 `associated` 时用来配置左边的选项集。 |
| leftMode | `string` | | 当展示形式为 `associated` 时用来配置左边的选择形式,支持 `list` 或者 `tree`。默认为 `list`。 |
| rightMode | `string` | | 当展示形式为 `associated` 时用来配置右边的选择形式,可选:`list`、`table`、`tree`、`chained`。 |
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## 事件表
| 事件名称 | 事件参数 | 说明 |
| -------- | ---------------------------------- | -------------------- |
| change | `value: string \| Option[]` 选中值 | 选中值发生变化时触发 |
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| blur | `value: string \| Option[]` 选中值 | 失去焦点时触发 |
| focus | `value: string \| Option[]` 选中值 | 获得焦点时触发 |
| add | - | 新增选项的时候触发 |
| edit | `value: Option` 修改的选项 | 编辑选项时触发 |
| delete | `value: Option` 删除的选项 | 删除选项时触发 |
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## 动作表
| 动作名称 | 动作配置 | 说明 |
| -------- | ---------------------------- | ---- |
| clear | - | 清空 |
| reset | `resetValue: boolean` 重置值 | 重置 |