amis/docs/zh-CN/components/form/input-tree.md

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---
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title: InputTree 树形选择框
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description:
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type: 0
group: null
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menuName: InpputTree 树形选择框
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icon:
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order: 59
---
## 基本使用
配置的`options`中,可以通过`children`字段进行嵌套展示,实现树形选择器
```schema: scope="body"
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{
"type": "form",
"api": "/api/mock2/form/saveForm",
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"body": [
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{
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"type": "input-tree",
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"name": "tree",
"label": "Tree",
"options": [
{
"label": "Folder A",
"value": 1,
"children": [
{
"label": "file A",
"value": 2
},
{
"label": "Folder B",
"value": 3,
"children": [
{
"label": "file b1",
"value": 3.1
},
{
"label": "file b2",
"value": 3.2
}
]
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}
]
},
{
"label": "file C",
"value": 4
},
{
"label": "file D",
"value": 5
}
]
}
]
}
```
## 选择器样式
配置`"type": "tree-select"`可以实现选择器样式
```schema: scope="body"
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{
"type": "form",
"api": "/api/mock2/form/saveForm",
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"body": [
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{
"type": "tree-select",
"name": "tree",
"label": "Tree",
"options": [
{
"label": "Folder A",
"value": 1,
"children": [
{
"label": "file A",
"value": 2
},
{
"label": "file B",
"value": 3
}
]
},
{
"label": "file C",
"value": 4
},
{
"label": "file D",
"value": 5
}
]
}
]
}
```
## 是否显示展开线
> 1.1.6 版本
通过 `showOutline` 来控制是否显示展开线。
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
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"body": [
{
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"type": "input-tree",
"name": "tree",
"label": "Tree",
"showOutline": true,
"options": [
{
"label": "Folder A",
"value": 1,
"children": [
{
"label": "file A",
"value": 2
},
{
"label": "Folder B",
"value": 3,
"children": [
{
"label": "file b1",
"value": 3.1
},
{
"label": "file b2",
"value": 3.2
}
]
}
]
},
{
"label": "file C",
"value": 4
},
{
"label": "file D",
"value": 5
}
]
}
]
}
```
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## 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: scope="body"
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{
"type": "form",
"debug": true,
"api": "/api/mock2/form/saveForm",
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"body": [
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{
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"type": "input-tree",
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"name": "tree1",
"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"
},
{
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"type": "input-tree",
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"name": "tree2",
"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: scope="body"
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{
"type": "form",
"debug": true,
"api": "/api/mock2/form/saveForm",
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"body": [
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{
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"type": "input-tree",
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"name": "tree1",
"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"
},
{
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"type": "input-tree",
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"name": "tree2",
"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"
}
]
}
]
}
```
也可以设置`onlyChildren`,实现只包含子节点的值
```schema: scope="body"
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{
"type": "form",
"debug": true,
"api": "/api/mock2/form/saveForm",
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"body": [
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{
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"type": "input-tree",
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"name": "tree1",
"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"
},
{
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"type": "input-tree",
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"name": "tree2",
"label": "只包含子节点的值",
"multiple": true,
"onlyChildren": 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"
}
]
}
]
}
```
## 默认展开
默认是展开所有子节点的,如果不想默认展开,则配置`"initiallyOpen": false`
```schema: scope="body"
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{
"type": "form",
"debug": true,
"api": "/api/mock2/form/saveForm",
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"body": [
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{
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"type": "input-tree",
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"name": "tree1",
"label": "默认不自动带上子节点的值",
"initiallyOpen": false,
"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"
}
]
}
]
}
```
如果层级较多,也可以配置`unfoldedLevel`指定展开的层级数。
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下例中设置`"unfoldedLevel": 1`,默认展开第 1 层
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```schema: scope="body"
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{
"type": "form",
"debug": true,
"api": "/api/mock2/form/saveForm",
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"body": [
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{
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"type": "input-tree",
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"name": "tree1",
"label": "默认不自动带上子节点的值",
"initiallyOpen": false,
"unfoldedLevel": 1,
"options": [
{
"label": "A",
"value": "a"
},
{
"label": "B",
"value": "b",
"children": [
{
"label": "B-1",
"value": "b-1"
},
{
"label": "B-2",
"value": "b-2",
"children": [
{
"label": "B-2-1",
"value": "b-2-1"
},
{
"label": "B-2-2",
"value": "b-2-2"
},
{
"label": "B-2-3",
"value": "b-2-3"
}
]
},
{
"label": "B-3",
"value": "b-3"
}
]
},
{
"label": "C",
"value": "c"
}
]
}
]
}
```
## 可编辑
配置 `creatable`、`removable` 和 `editable` 可以实现树可编辑。
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
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"body": [
{
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"type": "input-tree",
"name": "tree",
"label": "Tree",
"creatable": true,
"removable": true,
"editable": true,
"options": [
{
"label": "Folder A",
"value": 1,
"children": [
{
"label": "file A",
"value": 2
},
{
"label": "file B",
"value": 3
}
]
},
{
"label": "file C",
"value": 4
},
{
"label": "file D",
"value": 5
}
]
}
]
}
```
## 控制哪些项可编辑
配置 `creatable`、`removable` 和 `editable` 可以实现树可编辑,同时如果需要关闭部分节点的编辑权限,可以在节点上配置`creatable`、`removable` 和 `editable`
`rootCreatable` 可以用来关闭顶层是否可以创建。如果想要控制顶层可编辑,请配置 `hideRoot`,用节点来控制。
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"type": "input-tree",
"name": "tree",
"label": "Tree",
"creatable": true,
"removable": true,
"editable": true,
"rootCreatable": false,
"options": [
{
"label": "Folder A",
"value": 1,
"creatable": false,
"removable": false,
"editable": false,
"children": [
{
"label": "file A",
"value": 2
},
{
"label": "file B",
"value": 3
}
]
},
{
"label": "file C",
"value": 4,
"removable": false
},
{
"label": "file D",
"value": 5,
"editable": false
}
]
}
]
}
```
## 控制添加/编辑的表单
配置 `addControls` 可以控制添加时需要填写哪些信息,同样还有 `editControls` 来配置编辑节点的表单
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"type": "input-tree",
"name": "tree",
"label": "Tree",
"creatable": true,
"addControls": [
{
"label": "节点名称",
"type": "input-text",
"required": true,
"name": "label"
},
{
"label": "节点值",
"type": "input-text",
"required": true,
"name": "value"
}
],
"options": [
{
"label": "Folder A",
"value": 1,
"children": [
{
"label": "file A",
"value": 2
},
{
"label": "file B",
"value": 3
}
]
},
{
"label": "file C",
"value": 4
},
{
"label": "file D",
"value": 5
}
]
}
]
}
```
## 懒加载
> since 1.1.6
需要懒加载的选项请配置 `defer` 为 true然后配置 `deferApi` 即可完成懒加载。如果不配置 `deferApi` 会使用 `source` 接口。
`deferApi` 中可以用到当前选项中的任何字段,比如以下这个例子是把 label 传给了 defer 接口
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
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"body": [
{
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"type": "input-tree",
"name": "tree",
"label": "Tree",
"deferApi": "/api/mock2/form/deferOptions?label=${label}&waitSeconds=2",
"options": [
{
"label": "Folder A",
"value": 1,
"collapsed": true,
"children": [
{
"label": "file A",
"value": 2
},
{
"label": "file B",
"value": 3
}
]
},
{
"label": "这下面是懒加载的",
"value": 4,
"defer": true
},
{
"label": "file D",
"value": 5
}
]
}
]
}
```
## 节点路径模式
> since 1.2.4
配置`enableNodePath: true`后, 可以将`value`格式转换成节点路径模式,`pathSeparator`设置路径分隔符,建议将该属性的值和拼接符`delimeter`区分开。节点路径模式下,`value`中所有节点的父节点都会自动加载数据并回显。不同配置属性的节点路径模式`value`如下:
```
a
/ \
b d
/
c
----------------------------------------------
multiple joinValues extractValue value
----------------------------------------------
false true - 'a/b/c'
false false false {label: 'A/B/C', value: 'a/b/c'}
true true - 'a/b/c,a/d'
true false true ['a/b/c', 'a/d']
true false true [{label: 'A/B/C', value: 'a/b/c'},{label: 'A/D', value: 'a/d'}]
```
```schema: scope="body"
{
"type": "form",
"api": "/api/mock2/form/saveForm",
"body": [
{
"type": "input-tree",
"name": "tree",
"label": "Tree",
"deferApi": "/api/mock2/form/deferOptions?label=${label}&waitSeconds=2",
"value": "1/2,4/lazy-1/lazy-1-3,4/lazy-1/lazy-1-5",
"enableNodePath": true,
"pathSeparator": '/',
"multiple": true,
"options": [
{
"label": "Folder A",
"value": 1,
"collapsed": true,
"children": [
{
"label": "file A",
"value": 2
},
{
"label": "file B",
"value": 3
}
]
},
{
"label": "这下面是懒加载的",
"value": 4,
"defer": true
},
{
"label": "file D",
"value": 5
}
]
}
]
}
```
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## 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](../../../../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) |
| 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) |
| multiple | `boolean` | `false` | 是否多选 |
| delimeter | `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) |
| iconField | `string` | `"icon"` | 图标值字段 |
| 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) |
| creatable | `boolean` | `false` | [新增选项](./options#%E5%89%8D%E7%AB%AF%E6%96%B0%E5%A2%9E-creatable) |
| 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) |
| searchable | `boolean` | `false` | 是否可检索,仅在 type 为 `tree-select` 的时候生效 |
| hideRoot | `boolean` | `true` | 如果想要显示个顶级节点,请设置为 `false` |
| rootLabel | `boolean` | `"顶级"` | 当 `hideRoot` 不为 `false` 时有用,用来设置顶级节点的文字。 |
| showIcon | `boolean` | `true` | 是否显示图标 |
| showRadio | `boolean` | `false` | 是否显示单选按钮,`multiple` 为 `false` 是有效。 |
| initiallyOpen | `boolean` | `true` | 设置是否默认展开所有层级。 |
| unfoldedLevel | `number` | `0` | 设置默认展开的级数,只有`initiallyOpen`不是`true`时生效。 |
| cascade | `boolean` | `false` | 当选中父节点时不自动选择子节点。 |
| withChildren | `boolean` | `false` | 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。 |
| onlyChildren | `boolean` | `false` | 多选时,选中父节点时,是否只将其子节点加入到值中。 |
| rootCreatable | `boolean` | `false` | 是否可以创建顶级节点 |
| rootCreateTip | `string` | `"添加一级节点"` | 创建顶级节点的悬浮提示 |
| minLength | `number` | | 最少选中的节点数 |
| maxLength | `number` | | 最多选中的节点数 |
| treeContainerClassName | `string` | | tree 最外层容器类名 |
| enableNodePath | `boolean` | `false` | 是否开启节点路径模式 |
| pathSeparator | `string` | `/` | 节点路径的分隔符,`enableNodePath`为`true`时生效 |