el-cascader懒加载回显问题

思路：可以在编辑和修改的时候，新增一个el-input,修改弹窗展示出相应的name,鼠标聚焦的时候展示出el-cascader

<template>
<el-dialog :title="titleMap[mode]" v-model="visible" :width="500" destroy-on-close @closed="$emit('closed')">
<el-form :model="form" :rules="rules" :disabled="mode=='show'" ref="dialogForm" label-width="100px" label-position="left">
<el-form-item label="供应商分类" prop="supplier_class_id">
<el-cascader v-if="mode=='add' || classStutus==false" v-model="form.supplier_class_id" style="width: 100%;" :props="class_tree_props" clearable placeholder="请选择标签" :show-all-levels="false"></el-cascader>
<el-input v-if="mode=='edit' && classStutus" v-model="form.supplier_class_name" @focus="supplierClassBlur"></el-input>
</el-form-item>
</el-form>
<template #footer>
<el-button v-if="mode!='show'" type="primary" @click="submit()">保 存</el-button>
<el-button @click="visible=false" >取 消</el-button>
</template>
</el-dialog>
</template>

<script>
export default {
data() {
return {
mode: "add",
titleMap: {
add: '新增供应商',
},
visible: false,
form: {},
supplierClassList: [],
class_tree_props: {
label: 'name',
value: 'id',
checkStrictly: true,
emitPath: false,
lazy: true,
lazyLoad: this.getClassOptions,
},
classStutus: true,
}
},
mounted() {
this.getContactList();
this.getEvaluateList();
},
methods: {
//显示
open(mode='add'){
this.mode = mode;
this.visible = true;
return this;
},
supplierClassBlur(){
this.classStutus = false;
},
async getClassOptions(node, resolve){
if(node.data.id){
let resp = await this.$API.supplier.supplierclass.json_list.get({ parent_id: node.data.id, page: 0 });
resolve(resp.data.rows);
} else {
const resp = await this.$API.supplier.supplierclass.json_list.get({page: 0, parent_id: 1});
resolve(resp.data.rows);
}
},
//表单提交方法
submit(){
this.$refs.dialogForm.validate(async (valid) => {
if (valid) {
let res = null;
if(this.form.id) {
res = await this.$API.supplier.supplier.json_edit.put(this.form.id, this.form);
} else {
res = await this.$API.supplier.supplier.json_add.post(this.form);
}
if(res.code == 200){
this.$emit('success');
this.visible = false;
this.$message.success("操作成功")
}else{
this.$alert(res.message, "提示", {type: 'error'})
}
}
})
},
setData(data){
this.form = {  ...data };
}
}
}
</script>

<style>
</style>

原文地址：https://blog.csdn.net/webEvelement/article/details/142485489

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