amis/docs/zh-CN/components/form/nestedselect.md
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docs:将文档移动 zh-CN 目录下;为以后支持英文版做准备 (#1309)
* docs:将文档移动 zh-CN 目录下;为以后支持英文版做准备

* 整理 autoFill

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* fix: 修复在新版 Firefox 下 js sdk 报错 (#1300)

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* 补充文档

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Co-authored-by: 2betop <2betop.cn@gmail.com>
Co-authored-by: liaoxuezhi <liaoxuezhi@baidu.com>
2021-01-04 16:59:32 +08:00

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---
title: NestedSelect 级联选择器
description:
type: 0
group: null
menuName: NestedSelect 级联选择器
icon:
order: 31
---
## 基本用法
```schema:height="400" scope="body"
{
"type": "form",
"api": "https://houtai.baidu.com/api/mock2/form/saveForm",
"controls": [
{
"type": "nested-select",
"name": "nestedSelect",
"label": "级联选择器",
"options": [
{
"label": "A",
"value": "a"
},
{
"label": "B",
"value": "b",
"children": [
{
"label": "B-1",
"value": "b-1"
},
{
"label": "B-2",
"value": "b-2"
},
{
"label": "B-3",
"value": "b-3"
}
]
},
{
"label": "C",
"value": "c"
}
]
}
]
}
```
## 选中父节点是否自动选中子节点
默认选中父节点会自动选中子节点,可以设置`"cascade": true`,不自动选中子节点
```schema:height="450" scope="body"
{
"type": "form",
"debug": true,
"api": "https://houtai.baidu.com/api/mock2/form/saveForm",
"controls": [
{
"type": "nested-select",
"name": "nestedSelect1",
"label": "默认自动选中子节点",
"multiple": true,
"options": [
{
"label": "A",
"value": "a"
},
{
"label": "B",
"value": "b",
"children": [
{
"label": "B-1",
"value": "b-1"
},
{
"label": "B-2",
"value": "b-2"
},
{
"label": "B-3",
"value": "b-3"
}
]
},
{
"label": "C",
"value": "c"
}
]
},
{
"type": "divider"
},
{
"type": "nested-select",
"name": "nestedSelect2",
"label": "不自动选中子节点",
"multiple": true,
"cascade": true,
"options": [
{
"label": "A",
"value": "a"
},
{
"label": "B",
"value": "b",
"children": [
{
"label": "B-1",
"value": "b-1"
},
{
"label": "B-2",
"value": "b-2"
},
{
"label": "B-3",
"value": "b-3"
}
]
},
{
"label": "C",
"value": "c"
}
]
}
]
}
```
## 选中父节点,值是否包含子节点
默认选中父节点,是不会带上子节点的值,想要自动带上子节点的值,那么配置`"withChildren": true`
```schema:height="450" scope="body"
{
"type": "form",
"debug": true,
"api": "https://houtai.baidu.com/api/mock2/form/saveForm",
"controls": [
{
"type": "nested-select",
"name": "nestedSelect1",
"label": "默认不自动带上子节点的值",
"multiple": true,
"options": [
{
"label": "A",
"value": "a"
},
{
"label": "B",
"value": "b",
"children": [
{
"label": "B-1",
"value": "b-1"
},
{
"label": "B-2",
"value": "b-2"
},
{
"label": "B-3",
"value": "b-3"
}
]
},
{
"label": "C",
"value": "c"
}
]
},
{
"type": "divider"
},
{
"type": "nested-select",
"name": "nestedSelect2",
"label": "自动带上子节点的值",
"multiple": true,
"withChildren": true,
"options": [
{
"label": "A",
"value": "a"
},
{
"label": "B",
"value": "b",
"children": [
{
"label": "B-1",
"value": "b-1"
},
{
"label": "B-2",
"value": "b-2"
},
{
"label": "B-3",
"value": "b-3"
}
]
},
{
"label": "C",
"value": "c"
}
]
}
]
}
```
## 属性表
当做选择器表单项使用时,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
| 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](../../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 | `boolean` | `false` | [拼接符](./options#%E6%8B%BC%E6%8E%A5%E7%AC%A6-delimiter) |
| labelField | `boolean` | `"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 | `boolean` | `"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) |
| autoFill | `object` | | [自动填充](./options#%E8%87%AA%E5%8A%A8%E5%A1%AB%E5%85%85-autofill) |
| cascade | `boolean` | `false` | 设置 `true`时,当选中父节点时不自动选择子节点。 |
| withChildren | `boolean` | `false` | 设置 `true`时,选中父节点时,值里面将包含子节点的值,否则只会保留父节点的值。 |
| searchable | `boolean` | `false` | 可否搜索 |
| searchPromptText | `string` | `"输入内容进行检索"` | 搜索框占位文本 |
| multiple | `boolean` | `false` | 可否多选 |