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

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---
title: Transfer 穿梭器
description:
type: 0
group: null
menuName: Transfer 穿梭器
icon:
---
## 基本用法
```schema: scope="body"
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{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
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{
"label": "默认",
"type": "transfer",
"name": "transfer",
"options": [
{
"label": "诸葛亮",
"value": "zhugeliang"
},
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
},
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
]
}
```
## 展示模式
### 分组
```schema: scope="body"
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{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
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{
"label": "分组",
"type": "transfer",
"name": "transfer",
"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
```schema: scope="body"
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{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
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{
"label": "表格形式",
"type": "transfer",
"name": "transfer",
"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"
}
]
}
]
}
```
### 树形模式
```schema: scope="body"
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{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
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{
"label": "树型展示",
"type": "transfer",
"name": "transfer4",
"selectMode": "tree",
"searchable": true,
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"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
```schema: scope="body"
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{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
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{
"label": "级联选择",
"type": "transfer",
"name": "transfer5",
"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"
}
]
}
]
}
]
}
```
### 关联选择模式
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```schema: scope="body"
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{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
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{
"label": "关联选择模式",
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"type": "transfer",
"name": "b",
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"sortable": true,
"searchable": true,
"deferApi": "/api/mock2/form/deferOptions?label=${label}",
"selectMode": "associated",
"leftMode": "tree",
"leftOptions": [
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{
"label": "法师",
"children": [
{
"label": "诸葛亮",
"value": "zhugeliang"
}
]
},
{
"label": "战士",
"children": [
{
"label": "曹操",
"value": "caocao"
},
{
"label": "钟无艳",
"value": "zhongwuyan"
}
]
},
{
"label": "打野",
"children": [
{
"label": "李白",
"value": "libai"
},
{
"label": "韩信",
"value": "hanxin"
},
{
"label": "云中君",
"value": "yunzhongjun"
}
]
}
],
"options": [
{
"ref": "zhugeliang",
"children": [
{
"label": "A",
"value": "a"
}
]
},
{
"ref": "caocao",
"children": [
{
"label": "B",
"value": "b"
},
{
"label": "C",
"value": "c"
}
]
},
{
"ref": "zhongwuyan",
"children": [
{
"label": "D",
"value": "d"
},
{
"label": "E",
"value": "e"
}
]
},
{
"ref": "libai",
"defer": true
},
{
"ref": "hanxin",
"defer": true
},
{
"ref": "yunzhongjun",
"defer": true
}
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]
}
]
}
```
`leftOptions` 动态加载,默认 `source` 接口是返回 options 部分,而 `leftOptions` 是没有对应的接口可以动态返回了。为了方便,目前如果 `source` 接口返回的选中中,第一个 option 是以下这种格式则也会把 options[0].leftOptions 当成 `leftOptions`, options[0].children 当 options。同时 options[0].leftDefaultValue 可以用来配置左侧选项的默认值。
```
{
status: 0,
msg: '',
data: {
options: [
{
leftOptions: [],
children: [],
leftDefaultValue: ''
}
]
}
}
```
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### 延时加载
```schema: scope="body"
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{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
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{
"label": "延时加载",
"type": "transfer",
"name": "transfer7",
"selectMode": "tree",
"deferApi": "/api/mock2/form/deferOptions?label=${label}&waitSeconds=2",
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"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"
}
]
}
]
}
]
}
```
### 支持搜索
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#### 左侧搜索功能
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通过 `searchable` 字段来控制左侧选项栏的搜索功能。
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在不设置 `searchApi` 情况下,对输入框内容和对应列表项的 value、label 进行匹配,匹配成功就会左侧面板中显示。
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```schema: scope="body"
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{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
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{
"label": "带搜索",
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"type": "transfer",
"name": "transfer6",
"selectMode": "chained",
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"searchable": true,
"sortable": true,
"options": [
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{
"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"
}
]
}
]
}
]
}
```
#### 右侧结果搜索功能
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右侧结果搜索是通过`resultSearchable`字段开启,设置该字段为 true 时开启。
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开启结果搜索后,目前默认通过 value、label 对输入内容进行模糊匹配。
目前树的延时加载不支持结果搜索功能。
```schema: scope="body"
{
"type": "page",
"body": {
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "树型展示",
"type": "transfer",
"name": "transfer4",
"selectMode": "tree",
"searchable": true,
"resultListModeFollowSelect": true,
"resultSearchable": 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"
}
]
}
]
}
]
}
}
```
#### searchApi
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设置这个 api可以实现左侧选项搜索结果的检索。
##### 发送
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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
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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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### 结果面板跟随模式
`resultListModeFollowSelect` 开启结果面板跟随模式。
#### 表格跟随模式
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```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "表格形式",
"type": "transfer",
"name": "transfer",
"selectMode": "table",
"resultListModeFollowSelect": 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"
}
]
}
]
}
```
#### 树形跟随模式
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```schema: scope="body"
{
"type": "page",
"body": {
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"label": "树型展示",
"type": "transfer",
"name": "transfer4",
"selectMode": "tree",
"searchable": true,
"resultListModeFollowSelect": 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"
}
]
}
]
}
]
}
}
```
### 自定义选项展示
```schema: scope="body"
{
"type": "form",
"body": [
{
"label": "默认",
"type": "transfer",
"name": "transfer",
"menuTpl": "<div class='flex justify-between'><span>${label}</span><span class='text-muted m-r text-sm'>${tag}</span></div>",
"valueTpl": "${label}(${value})",
"options": [
{
"label": "诸葛亮",
"value": "zhugeliang",
"tag": "法师",
},
{
"label": "曹操",
"value": "caocao",
"tag": "战士",
},
{
"label": "钟无艳",
"value": "zhongwuyan",
"tag": "战士",
},
{
"label": "李白",
"value": "libai",
"tag": "打野"
},
{
"label": "韩信",
"value": "hanxin",
"tag": "打野"
},
{
"label": "云中君",
"value": "yunzhongjun",
"tag": "打野"
}
]
}
]
}
```
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## 属性表
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 | `string`或 [API](../../../docs/types/api) | | [动态选项组](./options#%E5%8A%A8%E6%80%81%E9%80%89%E9%A1%B9%E7%BB%84-source) |
| delimeter | `string` | `false` | [拼接符](./options#%E6%8B%BC%E6%8E%A5%E7%AC%A6-delimiter) |
| 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) |
| searchApi | [API](../../../docs/types/api) | | 如果想通过接口检索,可以设置这个 api。 |
| resultListModeFollowSelect | `boolean` | `false` | 结果面板跟随模式,目前只支持`list`、`table`、`tree`tree 目前只支持非延时加载的`tree` |
| statistics | `boolean` | `true` | 是否显示统计数据 |
| selectTitle | `string` | `"请选择"` | 左侧的标题文字 |
| resultTitle | `string` | `"当前选择"` | 右侧结果的标题文字 |
| sortable | `boolean` | `false` | 结果可以进行拖拽排序(结果列表为树时,不支持排序) |
| selectMode | `string` | `list` | 可选:`list`、`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。 |
| searchable | `boolean` | `false` | 左侧列表搜索功能,当设置为  true  时表示可以通过输入部分内容检索出选项项。 |
| searchPlaceholder | `string` | | 左侧列表搜索框提示 |
| 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`。 |
| resultSearchable | `boolean` | `false` | 结果(右则)列表的检索功能,当设置为 true 时,可以通过输入检索模糊匹配检索内容(目前树的延时加载不支持结果搜索功能) |
| resultSearchPlaceholder | `string` | | 右侧列表搜索框提示 |
| menuTpl | `string` \| [SchemaNode](../../docs/types/schemanode) | | 用来自定义选项展示 |
| valueTpl | `string` \| [SchemaNode](../../docs/types/schemanode) | | 用来自定义值的展示 |
## 事件表
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当前组件会对外派发以下事件,可以通过`onEvent`来监听这些事件,并通过`actions`来配置执行的动作,在`actions`中可以通过`event.data.xxx`事件参数变量来获取事件产生的数据,详细请查看[事件动作](../../docs/concepts/event-action)。
| 事件名称 | 事件参数 | 说明 |
| -------- | --------------------------------- | ---------------- |
| change | `event.data.value: string` 选中值 | 选中值变化时触发 |
## 动作表
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当前组件对外暴露以下特性动作,其他组件可以通过指定`actionType: 动作名称`、`componentId: 该组件id`来触发这些动作,动作配置可以通过`args: {动作配置项名称: xxx}`来配置具体的参数,详细请查看[事件动作](../../docs/concepts/event-action#触发其他组件的动作)。
| 动作名称 | 动作配置 | 说明 |
| --------- | ------------------------ | ------------------------------------------------------ |
| clear | - | 清空 |
| reset | - | 将值重置为`resetValue`,若没有配置`resetValue`,则清空 |
| selectAll | - | 全选 |
| setValue | `value: string` 更新的值 | 更新数据,多值用`,`分隔 |