2020-07-28 10:03:53 +08:00
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---
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title: TreeSelect 树形选择器
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2020-12-02 15:08:47 +08:00
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description:
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2020-07-28 10:03:53 +08:00
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type: 0
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group: null
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menuName: TreeSelect 树形选择器
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2020-12-02 15:08:47 +08:00
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icon:
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2020-07-28 10:03:53 +08:00
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order: 60
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---
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## 基本使用
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2021-01-07 23:35:03 +08:00
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```schema: scope="body"
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2020-07-28 10:03:53 +08:00
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{
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"type": "form",
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2021-08-09 18:05:01 +08:00
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"api": "/api/mock2/form/saveForm",
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2021-06-07 10:09:55 +08:00
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"body": [
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2020-07-28 10:03:53 +08:00
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{
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"type": "tree-select",
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"name": "tree",
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"label": "Tree",
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2021-03-15 10:30:39 +08:00
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"searchable": true,
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2020-07-28 10:03:53 +08:00
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"options": [
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{
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"label": "Folder A",
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"value": 1,
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"children": [
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{
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"label": "file A",
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"value": 2
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},
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{
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"label": "file B",
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"value": 3
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}
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]
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},
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{
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"label": "file C",
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"value": 4
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},
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{
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"label": "file D",
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"value": 5
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2020-12-02 15:08:47 +08:00
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},
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{
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"label": "Folder E",
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"children": [
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{
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"label": "Folder G",
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"children": [
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{
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"label": "file H",
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"value": 6
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},
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{
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"label": "file I",
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"value": 7
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}
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]
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}
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]
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2020-07-28 10:03:53 +08:00
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}
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]
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}
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]
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}
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```
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2021-09-15 23:24:14 +08:00
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## 仅展示选中节点文本信息
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设置`hideNodePathLabel: true`,可以隐藏选择框中已选择节点的祖先节点(ancestor)的`labelField`字段值,仅展示当前选中节点的`labelField`字段值。
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```schema: scope="body"
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{
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"type": "form",
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"api": "/api/mock2/form/saveForm",
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"body": [
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{
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"type": "tree-select",
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"name": "tree1",
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"label": "展示已选择节点的祖先节点的文本信息",
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"value": "1,6,7",
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"multiple": true,
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"options": [
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{
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"label": "Folder A",
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"value": 1,
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"children": [
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{
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"label": "file A",
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"value": 2
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},
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{
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"label": "file B",
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"value": 3
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}
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]
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},
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{
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"label": "file C",
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"value": 4
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},
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{
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"label": "file D",
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"value": 5
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},
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{
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"label": "Folder E",
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"children": [
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{
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"label": "Folder G",
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"children": [
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{
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"label": "file H",
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"value": 6
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},
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{
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"label": "file I",
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"value": 7
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}
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]
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}
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]
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}
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]
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},
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{
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"type": "divider"
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},
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{
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"type": "tree-select",
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"name": "tree2",
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"label": "仅展示已选择节点的文本信息",
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"value": "1,6,7",
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"multiple": true,
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"hideNodePathLabel": true,
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"options": [
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{
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"label": "Folder A",
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"value": 1,
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"children": [
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{
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"label": "file A",
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"value": 2
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},
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{
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"label": "file B",
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"value": 3
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}
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]
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},
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{
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"label": "file C",
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"value": 4
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},
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{
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"label": "file D",
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"value": 5
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},
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{
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"label": "Folder E",
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"children": [
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{
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"label": "Folder G",
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"children": [
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{
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"label": "file H",
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"value": 6
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},
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{
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"label": "file I",
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"value": 7
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}
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]
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}
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]
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}
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]
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}
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]
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}
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```
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2022-03-22 18:51:21 +08:00
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## 只允许选择叶子节点
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> 1.8.0 及以上版本
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在单选时,可通过 `onlyLeaf` 可以配置只允许选择叶子节点
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```schema: scope="body"
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{
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"type": "form",
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"api": "/api/mock2/form/saveForm",
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"body": [
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{
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"type": "tree-select",
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"name": "tree",
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"label": "Tree",
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"onlyLeaf": true,
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"searchable": true,
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"options": [
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{
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"label": "Folder A",
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"value": 1,
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"children": [
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{
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"label": "file A",
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"value": 2
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},
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{
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"label": "file B",
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"value": 3
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}
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]
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},
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{
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"label": "file C",
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"value": 4
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},
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{
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"label": "file D",
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"value": 5
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},
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{
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"label": "Folder E",
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"value": "61",
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"children": [
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{
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"label": "Folder G",
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"value": "62",
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"children": [
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{
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"label": "file H",
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"value": 6
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},
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{
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"label": "file I",
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"value": 7
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}
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]
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}
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]
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}
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]
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}
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}
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```
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2022-03-16 17:53:05 +08:00
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## 如何让某些节点无法点?
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只需要对应的节点没有 value 就行,比如下面例子的目录节点都无法点,只能点文件节点
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```schema: scope="body"
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{
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"type": "form",
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"api": "/api/mock2/form/saveForm",
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"body": [
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{
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"type": "tree-select",
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"name": "tree",
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"label": "Tree",
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"searchable": true,
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"options": [
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{
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"label": "Folder A",
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"children": [
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{
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"label": "file A",
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"value": 2
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},
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{
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"label": "file B",
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"value": 3
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}
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]
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},
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{
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"label": "Folder E",
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"children": [
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{
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"label": "Folder G",
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"children": [
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{
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"label": "file H",
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"value": 6
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},
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{
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"label": "file I",
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"value": 7
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}
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]
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}
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]
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}
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]
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}
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]
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}
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```
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2021-09-15 23:24:14 +08:00
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## 属性表
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2021-06-18 21:14:44 +08:00
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更多用法,见 [InputTree](./input-tree)
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2021-09-15 23:24:14 +08:00
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| 属性名 | 类型 | 默认值 | 说明 |
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| ----------------- | --------- | ------- | ------------------------------------------- |
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| hideNodePathLabel | `boolean` | `false` | 是否隐藏选择框中已选择节点的路径 label 信息 |
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2022-03-22 18:51:21 +08:00
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| onlyLeaf | `boolean` | `false` | 只运行选择叶子节点 |
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2022-03-17 20:25:51 +08:00
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## 事件表
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| 事件名称 | 事件参数 | 说明 |
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|--------------- |------------------------ |----------------------|
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| change | value: `string` 更新后的数据 | 选中值更改 |
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| add | value: `string` 新增节点信息 | 新增选项 |
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| edit | value: `string` 编辑节点信息 | 编辑选项 |
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| delete | value: `string` 删除节点信息 | 删除选项 |
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| loadFinished | value: `json` 懒加载返回的数据 | 懒加载完成触发 |
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| blur | - | 输入框失去焦点|
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| focus | - | 输入框获取焦点 |
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## 动作表
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| 动作名称 | 动作配置 | 说明 |
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|----------------|------------------------ |---------------------|
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| clear | - | 清除数据 |
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2022-03-21 20:05:36 +08:00
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| reset | - | 重置数据 |
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