vue+elementui实现动态控制表格列的显示和隐藏
时间:2022-09-13 08:48:27|栏目:vue|点击: 次
vue+elementui(table,多选框)实现动态控制表格列的显示和隐藏,供大家参考,具体内容如下
imdex.vue
<template> <div> <div> <el-table :data="tableData" border style="width: 100%" ref="table"> <el-table-column prop="index" label="序号" width="150"> <template slot-scope="scope"> <div>{{ scope.$index + 1 }}</div> </template> </el-table-column> <el-table-column v-for="(item, index) in againRender" :width="item.width" :prop="item.prop" :key="index" show-overflow-tooltip :label="item.label" ></el-table-column> </el-table> </div> <div class="dsadas"> <new-checkbox :all-item-data="itemList" :change-props="changeProps" /> </div> </div> </template> <script> import axios from "axios"; // 采用异步加载,防止父组件引入子组件,子组件的的钩子函数全部执行完毕 const newCheckbox = () => ({ component: import("./checkBox.vue"), delay: 2000, timeout: 2000, }); export default { data() { return { tableData: [], againRender: [], itemList: [ { allListDate: [ // 后台数据结构跟这有一样 { label: "姓名", width: "120", prop: "name" }, { label: "性别", width: "120", prop: "sex" }, { prop: "age", label: "年龄", width: "120" }, { prop: "styChild", label: "身份", width: "120" }, { prop: "gradeClass", label: "学历", width: "200" }, ], selectedList: [ { label: "姓名", width: "120", prop: "name" }, { label: "性别", width: "120", prop: "sex" }, { prop: "age", label: "年龄", width: "120" }, ], }, ], }; }, components: { newCheckbox }, mounted() { this.getElementVauleHieen(); }, methods: { changeProps(value) { this.$nextTick((_) => { this.againRender= value; this.$refs.table.doLayout; }); }, getElementVauleHieen() { axios.get("http://localhost:3000/elementVauleHieen").then((res) => { this.tableData = res.data; }); }, }, }; </script> <style lang="less"> </style>
checkBox.vue文件
<template> <div> <div> <el-checkbox :indeterminate="isIndeterminate" v-model="checkAll" @change="handleCheckAllChange" >全选</el-checkbox > </div> <el-checkbox-group v-model="checkedCities" @change="handleCheckedCitiesChange" > <el-checkbox v-for="(item, index) in allItemDataChecked" :label="item.label" :key="index" @change="(val) => checkboxChange(val, item, index)" >{{ item.label }}</el-checkbox > </el-checkbox-group> </div> </template> <script> export default { name: "checkBox", data() { return { isIndeterminate: false, checkAll: false, checkedCities: [], allItemDataChecked: this.allItemData[0].allListDate, checkboxChangeList: [], }; }, props: { allItemData: { type: Array, default: () => [], }, changeProps: { type: Function, default: () => false, }, }, mounted() { let list = []; if (this.allItemDataChecked.length) { this.allItemDataChecked.forEach((element) => { this.allItemData[0].selectedList.forEach((item) => { if (element.prop === item.prop && element.label === item.label) { list.push(item.label); } }); }); this.checkedCities = list; } }, watch: { checkedCities(newVlaue) { this.checkboxChangeList = []; // 防止多次点击重复触发数据 if (newVlaue.length === 0) { this.changeProps([]); } else { this.allItemDataChecked.forEach((ele) => { newVlaue.forEach((item) => { if (ele.label === item) { this.checkboxChangeList.push(ele); this.checkboxChange(); } }); }); } }, }, methods: { handleCheckAllChange(val) { this.checkedCities = []; let result = []; this.checkedCities = val ? this.allItemDataChecked.forEach((element) => { result.push(element.label); }) : []; this.checkedCities = result; }, handleCheckedCitiesChange(value) { this.checkAll = value.length === this.allItemDataChecked.length; }, checkboxChange() { // 发现这个没用 this.changeProps(this.checkboxChangeList); }, }, }; </script> <style lang="less"> </style>
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