當選中某一級時,動态加載該級下的選項。
html代碼 框裡面隻顯示三級類目 删除:show-all-levels=“false” 就會顯示全部路徑
<el-form-item label="商品類目:" v-if="navstate==-1">
<el-cascader v-model="preSearchForm.class" :props="props" :show-all-levels="false"></el-cascader>
</el-form-item>
props: {
lazy: true,
lazyLoad (node, resolve) {
const { level,value } = node;
buckleTemplateNext({pid:value || 0}).then(res=>{
console.log(res)
const nodes = res.map(x=>({
value: x.id,
label: x.name,
leaf: level >= 2
}))
resolve(nodes)
})
}
}