解决 elementui el-cascader组件懒加载时存在选中状态丢失的问题？

解决 elementui el-cascader组件懒加载时存在选中状态丢失的问题？

<el-cascader ref="cascader" v-model="curList" :show-all-levels="false" :options="classList":props="cascaderProps"clearablefilterablestyle="width: 100%"placeholder="选择"@change="handleChange"
/>

data(){return{curList:[],classList:[],cascaderProps: {checkStrictly: true,multiple: true,children: 'sonList',value: 'id',label: 'name',leaf: 'leaf',lazy: true,lazyLoad: this.lazyLoadCascader}}
},
methods:{async lazyLoadCascader(node, resolve) {const { checked } = nodeif (node.level === 0) {const list = await this.getClassList(1) // 获取数据，返回数组类型this.externalKnowclassList = listthis.initSelectedCascaderdata() // 修改操作,初始化已选节点// eslint-disable-next-line require-atomic-updatesnode.data = listresolve(list)} else {const { id, type, sonList } = node.dataif (this.$utils.isNotEmptyArray(sonList)) {resolve([])} else {const list = await this.getClassList(type + 1, id) // 获取数据，返回数组类型// eslint-disable-next-line require-atomic-updatesnode.data.sonList = listresolve(list)}// 解决 el-cascader 懒加载时选中状态丢失的问题const cascader = this.$refs.cascadernode.doCheck(checked) // 更新节点的选中状态cascader.panel.handleExpand(node) // 展开当前节点cascader.panel.calculateMultiCheckedValue() // 重新计算多选状态下的选中值}},
}