Tree 树形控件
示例
尺寸
可选的尺寸 ui
属性值:m
/ s
。
Normal size
- Infused
Small size
- Infused
<template>
<article>
<section>
<h4>Normal size</h4>
<veui-tree
ui="m"
:datasource="datasource"
/>
</section>
<section>
<h4>Small size</h4>
<veui-tree
ui="s"
:datasource="datasource"
/>
</section>
</article>
</template>
<script>
import { Tree } from 'veui'
export default {
components: {
'veui-tree': Tree
},
data () {
return {
datasource: [
{
label: 'Infused',
value: 'infused',
children: [
{
label: 'Brewed',
value: 'brewed',
children: [
{
label: 'Drip brewed',
value: 'drip-brewed'
},
{
label: 'Filtered',
value: 'filtered'
},
{
label: 'Pour-over',
value: 'pour-over'
},
{
label: 'Immersion brewed',
value: 'immersion-brewed'
}
]
},
{
label: 'French press',
value: 'french-press'
},
{
label: 'Cold brew',
value: 'cold-brew'
}
]
}
]
}
}
}
</script>
<style lang="less" scoped>
article {
display: flex;
}
section {
width: 45%;
}
</style>
控制展开、选中状态
- Drip brewed
- Filtered
- Pour-over
- Immersion brewed
- French press
- Cold brew
- Boiled
- Espresso
- Milk coffee
Expanded items
[ "infused", "brewed" ]Checked items
[]Selected item
<template>
<article>
<section>
<veui-tree
v-model="checked"
:datasource="coffees"
:expanded.sync="expanded"
checkable
selectable
:selected.sync="selected"
/>
</section>
<section>
<h4>Expanded items</h4>
{{ expanded }}
<h4>Checked items</h4>
{{ checked }}
<h4>Selected item</h4>
{{ selected }}
</section>
</article>
</template>
<script>
import { Tree } from 'veui'
export default {
components: {
'veui-tree': Tree
},
data () {
return {
expanded: ['infused', 'brewed'],
checked: [],
selected: null,
coffees: [
{
label: 'Infused',
value: 'infused',
children: [
{
label: 'Brewed',
value: 'brewed',
children: [
{
label: 'Drip brewed',
value: 'drip-brewed'
},
{
label: 'Filtered',
value: 'filtered',
disabled: true
},
{
label: 'Pour-over',
value: 'pour-over'
},
{
label: 'Immersion brewed',
value: 'immersion-brewed'
}
]
},
{
label: 'French press',
value: 'french-press'
},
{
label: 'Cold brew',
value: 'cold-brew'
}
]
},
{
label: 'Boiled',
value: 'boiled',
disabled: true,
children: [
{
label: 'Percolated',
value: 'percolated'
},
{
label: 'Turkish',
value: 'turkish'
},
{
label: 'Moka',
value: 'moka'
}
]
},
{
label: 'Espresso',
value: 'espresso',
children: [
{
label: 'Caffè Americano',
value: 'caffe-americano'
},
{
label: 'Cafe Lungo',
value: 'cafe-lungo',
disabled: true
},
{
label: 'Café Cubano',
value: 'cafe-cubano'
},
{
label: 'Caffè crema',
value: 'caffe-crema'
},
{
label: 'Cafe Zorro',
value: 'cafe-zorro'
},
{
label: 'Doppio',
value: 'doppio'
},
{
label: 'Espresso Romano',
value: 'espresso-romano'
},
{
label: 'Guillermo',
value: 'guillermo'
},
{
label: 'Ristretto',
value: 'ristretto'
}
]
},
{
label: 'Milk coffee',
value: 'milk-coffee',
children: [
{
label: 'Flat white',
value: 'flat-white'
},
{
label: 'Latte',
value: 'latte'
},
{
label: 'Macchiato',
value: 'macchiato'
},
{
label: 'Cappuccino',
value: 'cappuccino'
},
{
label: 'White coffee',
value: 'white-coffee'
}
]
}
]
}
}
}
</script>
<style lang="less" scoped>
article {
display: flex;
}
h4 {
margin: 0;
}
h4 + h4 {
margin-top: 20px;
}
section {
width: 45%;
}
</style>
自定义内容
Custom label
- Infused
- Boiled
- Espresso
- Milk coffee
Custom item
- Infused
- Boiled
- Espresso
- Milk coffee
<template>
<article>
<section>
<h4>Custom label</h4>
<veui-tree
:datasource="coffees"
item-click="toggle"
>
<template #item-label="{ item }">
<i>{{ item.label }}</i>
</template>
</veui-tree>
</section>
<section>
<h4>Custom item</h4>
<veui-tree
:datasource="coffees"
item-click="toggle"
class="custom-item"
>
<template #item="{ children, expanded, label }">
<template v-if="children && children.length">
<veui-button
ui="aux icon"
class="custom-toggle"
>
<veui-icon :name="expanded ? 'minus' : 'plus'"/>
</veui-button>
{{ label }}
</template>
</template>
</veui-tree>
</section>
</article>
</template>
<script>
import { Tree, Button, Icon } from 'veui'
import 'veui-theme-dls-icons/plus'
import 'veui-theme-dls-icons/minus'
export default {
components: {
'veui-tree': Tree,
'veui-button': Button,
'veui-icon': Icon
},
data () {
return {
coffees: [
{
label: 'Infused',
value: 'infused',
children: [
{
label: 'Brewed',
value: 'brewed',
children: [
{
label: 'Drip brewed',
value: 'drip-brewed'
},
{
label: 'Filtered',
value: 'filtered'
},
{
label: 'Pour-over',
value: 'pour-over'
},
{
label: 'Immersion brewed',
value: 'immersion-brewed'
}
]
},
{
label: 'French press',
value: 'french-press'
},
{
label: 'Cold brew',
value: 'cold-brew'
}
]
},
{
label: 'Boiled',
value: 'boiled',
children: [
{
label: 'Percolated',
value: 'percolated'
},
{
label: 'Turkish',
value: 'turkish'
},
{
label: 'Moka',
value: 'moka'
}
]
},
{
label: 'Espresso',
value: 'espresso',
children: [
{
label: 'Caffè Americano',
value: 'caffe-americano'
},
{
label: 'Cafe Lungo',
value: 'cafe-lungo'
},
{
label: 'Café Cubano',
value: 'cafe-cubano'
},
{
label: 'Caffè crema',
value: 'caffe-crema'
},
{
label: 'Cafe Zorro',
value: 'cafe-zorro'
},
{
label: 'Doppio',
value: 'doppio'
},
{
label: 'Espresso Romano',
value: 'espresso-romano'
},
{
label: 'Guillermo',
value: 'guillermo'
},
{
label: 'Ristretto',
value: 'ristretto'
}
]
},
{
label: 'Milk coffee',
value: 'milk-coffee',
children: [
{
label: 'Flat white',
value: 'flat-white'
},
{
label: 'Latte',
value: 'latte'
},
{
label: 'Macchiato',
value: 'macchiato'
},
{
label: 'Cappuccino',
value: 'cappuccino'
},
{
label: 'White coffee',
value: 'white-coffee'
}
]
}
]
}
}
}
</script>
<style lang="less" scoped>
article {
display: flex;
}
h4 {
margin-top: 0;
}
section {
width: 45%;
}
.custom-toggle {
margin-right: 4px;
}
</style>
API
属性
名称 | 类型 | 默认值 | 描述 | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ui | string= | - | 预设样式。
| |||||||||||||||
datasource | Array<Object> | [] | 数据源数组,每个项目类型为
| |||||||||||||||
expanded | Array | [] |
指定当前展开的节点,是一个对应于 | |||||||||||||||
checkable | boolean | false | 子节点是否可勾选。 | |||||||||||||||
checked | Array | [] |
当前被勾选的叶节点的值,是一个对应于 | |||||||||||||||
selectable | boolean | false | 点击整个节点区域时是否选中该节点。 | |||||||||||||||
selected | string | - |
当前被选中的叶节点的值,是一个对应于 | |||||||||||||||
merge-checked | string | keep-all | 选中值的合并策略。
|
插槽
名称 | 描述 | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
item | 每个节点的整个内容区域。
另外, | |||||||||||||||||||||
item-label | 每个节点的文本区域。作用域参数与 item 插槽一致。 | |||||||||||||||||||||
item-before | 每个节点的文本之前的区域。作用域参数与 item 插槽一致。 | |||||||||||||||||||||
item-after | 每个节点的文本之后的区域。作用域参数与 item 插槽一致。 |
事件
名称 | 描述 | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
click | 点击节点触发,回调参数为
| |||||||||||||||
expand | 节点展开时触发。回调参数为
| |||||||||||||||
collapse | 点击收起图标或者整个节点时触发,由
| |||||||||||||||
check |
勾选状态变化后触发,回调参数为 |
图标
名称 | 描述 |
---|---|
expand | 收起状态,点击后展开。 |
collapse | 展开状态,点击后收起。 |