ant-design-vue/components/tree-select/demo/treeData.md

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<cn>
#### 从数据直接生成
使用 `treeData` 把 JSON 数据直接生成树结构。
</cn>
<us>
#### Generate form tree data
The tree structure can be populated using `treeData` property. This is a quick and easy way to provide the tree content.
</us>
```html
<template>
<a-tree-select
style="width: 300px"
:dropdownStyle="{ maxHeight: '400px', overflow: 'auto' }"
:treeData="treeData"
placeholder='Please select'
treeDefaultExpandAll
v-model="value"
>
<span style="color: #08c" slot="title" slot-scope="{key, value}" v-if="key='0-0-1'">
Child Node1 {{value}}
</span>
</a-tree-select>
</template>
<script>
const treeData = [{
title: 'Node1',
value: '0-0',
key: '0-0',
children: [{
value: '0-0-1',
key: '0-0-1',
scopedSlots: { // custom title
title: 'title',
},
}, {
title: 'Child Node2',
value: '0-0-2',
key: '0-0-2',
}],
}, {
title: 'Node2',
value: '0-1',
key: '0-1',
}]
export default {
data () {
return {
value: undefined,
treeData,
}
},
watch: {
value (value) {
console.log(value)
},
},
}
</script>
```