tree.vue
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<template>
<div class="el-tree-select">
<el-select v-model="mineStatus" placeholder="请选择" multiple @change="selectChange">
<el-option :value="mineStatusValue" style="height: auto">
<el-tree ref="tree" :data="data" show-checkbox node-key="id" highlight-current :props="defaultProps" @check-change="handleCheckChange" />
</el-option>
</el-select>
</div>
</template>
<script>
export default {
data() {
return {
mineStatus: '',
mineStatusValue: [],
data: [
{
id: 1,
label: '一级 1',
children: [
{
id: 4,
label: '二级 1-1'
}
]
},
{
id: 2,
label: '一级 2',
children: [
{
id: 5,
label: '二级 2-1'
},
{
id: 6,
label: '二级 2-2'
}
]
},
{
id: 3,
label: '一级 3',
children: [
{
id: 7,
label: '二级 3-1'
},
{
id: 8,
label: '二级 3-2'
}
]
}
],
defaultProps: {
children: 'children',
label: 'label'
}
}
},
methods: {
// select框值改变时候触发的事件
selectChange(e) {
let arrNew = []
let dataLength = this.mineStatusValue.length
let eleng = e.length
for (let i = 0; i < dataLength; i++) {
for (let j = 0; j < eleng; j++) {
if (e[j] === this.mineStatusValue[i].label) {
arrNew.push(this.mineStatusValue[i])
}
}
}
this.$refs.tree.setCheckedNodes(arrNew)// 设置勾选的值
},
handleCheckChange() {
let res = this.$refs.tree.getCheckedNodes(true, true) // 这里两个true，1. 是否只是叶子节点 2. 是否包含半选节点（就是使得选择的时候不包含父节点）
let arrLabel = []
let arr = []
res.forEach(item => {
arrLabel.push(item.label)
arr.push(item)
})
this.mineStatusValue = arr
this.mineStatus = arrLabel
}
}
}
</script>
<style scoped>
</style>