本文详细介绍如何在 Vue.js 结合 Element UI 的 el-table 组件中实现动态添加、编辑、单独删除及批量删除行的功能。通过示例代码展示如何管理表格数据状态，处理输入框编辑与取消逻辑，以及利用 Checkbox 实现多选批量删除操作，帮助开发者快速掌握前端表格交互的核心技巧。
表格动态添加与删除行
本节演示如何动态向表格中添加新行，并支持对已有行进行删除操作。
<template>
<div class="TestWord">
<el-button @click="addLine">添加行数</el-button>
<el-button @click="save">保存</el-button>
<el-table
:data="tableData"
style="width: 100%">
<el-table-column prop="bookname" label="书名">
<template slot-scope="scope">
<el-input v-model="scope.row.bookname" placeholder="书名"></el-input>
</template>
</el-table-column>
<el-table-column prop="bookvolume" label="册数">
<template slot-scope="scope">
<el-input v-model="scope.row.bookvolume" placeholder="册数"></el-input>
</template>
</el-table-column>
<el-table-column prop="bookbuyer" label="购买者">
<template slot-scope="scope">
<el-input v-model="scope.row.bookbuyer" placeholder="购买者"></el-input>
</template>
</el-table-column>
<el-table-column prop="bookborrower" label="借阅者">
<template slot-scope="scope">
<el-input v-model="scope.row.bookborrower" placeholder="借阅者"></el-input>
</template>
</el-table-column>
<el-table-column prop="bookbuytime" label="购买日期">
<template slot-scope="scope">
<el-date-picker
v-model="scope.row.bookbuytime"
type="date"
format="yyyy-MM-dd"
value-format="yyyy-MM-dd"
placeholder="购买日期">
</el-date-picker>
</template>
</el-table-column>
<el-table-column prop="bookbuytime" label="购买日期">
<template slot-scope="scope">
<el-button
size="mini"
type="danger"
v-if="!scope.row.editing"
icon="el-icon-delete"
@click="handleDelete(scope.$index, scope.row)">删除
</el-button>
</template>
</el-table-column>
</el-table>
</div>
</template>以下是实现该功能相关的 Vue.js 代码片段。
export default {
name:'TestWorld',
data() {
return {
tableData:[{
bookname: '',
bookbuytime: '',
bookbuyer: '',
bookborrower: '',
bookvolume:''
}]
}
},
methods:{
addLine(){ //添加行数
var newValue = {
bookname: '',
bookbuytime: '',
bookbuyer: '',
bookborrower: '',
bookvolume:''
};
//添加新的行数
this.tableData.push(newValue);
},
handleDelete(index){ //删除行数
this.tableData.splice(index, 1)
},
save(){
//这部分应该是保存提交你添加的内容
console.log(JSON.stringify(this.tableData))
}
}
}运行效果如下图所示。
表格编辑与取消逻辑
接下来介绍如何编辑表格内容。即使输入框中的数据已被修改，当用户点击取消按钮时，数据应恢复至原始状态，确保内容不变。
<template>
<div class="TestWorld">
<el-button @click="savemodify">保存</el-button>
<el-table
:data="modifyData"
style="width: 100%">
<el-table-column prop="bookname" label="书名">
<template slot-scope="scope">
<template v-if="scope.row.editing">
<el-input class="edit-input" v-model="scope.row.bookname" placeholder="书名"></el-input>
</template>
<span v-else>{{ scope.row.bookname }}</span>
</template>
</el-table-column>
<el-table-column prop="bookvolume" label="册数">
<template slot-scope="scope">
<template v-if="scope.row.editing">
<el-input class="edit-input" v-model="scope.row.bookvolume" placeholder="册数"></el-input>
</template>
<span v-else>{{ scope.row.bookvolume}}</span>
</template>
</el-table-column>
<el-table-column prop="bookbuyer" label="购买者">
<template slot-scope="scope">
<template v-if="scope.row.editing">
<el-input class="edit-input" v-model="scope.row.bookbuyer" placeholder="购买者"></el-input>
</template>
<span v-else>{{scope.row.bookbuyer}}</span>
</template>
</el-table-column>
<el-table-column prop="bookborrower" label="借阅者">
<template slot-scope="scope">
<template v-if="scope.row.editing">
<el-input class="edit-input" v-model="scope.row.bookborrower" placeholder="借阅者"></el-input>
</template>
<span v-else>{{scope.row.bookborrower}}</span>
</template>
</el-table-column>
<el-table-column prop="bookbuytime" label="购买日期">
<template slot-scope="scope">
<template v-if="scope.row.editing">
<el-date-picker
v-model="scope.row.bookbuytime"
type="date"
value-format="yyyy-MM-dd"
placeholder="购买日期">
</el-date-picker>
</template>
<span v-else>{{scope.row.bookbuytime}}</span>
</template>
</el-table-column>
<el-table-column prop="editing" label="操作">
<template slot-scope="scope">
<el-button
type="danger"
v-if="!scope.row.editing"
icon="el-icon-delete"
v-model="scope.$index"
@click="handleEdit(scope.$index, scope.row)">编辑
</el-button>
<el-button
v-else
type="danger"
icon="el-icon-delete"
v-model="scope.$index"
@click="handleCancle(scope.$index, scope.row)">取消
</el-button>
</template>
</el-table-column>
</el-table>
</div>
</template>对应的 Vue.js 实现代码如下。
export default {
name:'TestWorld',
data() {
return {
modifyData:[],
prevValue:{}
}
},
mounted(){
this.getData()
},
methods:{
getData(){
this.$ajax({
method: 'get',
url:'../static/json/1.1.1.json', //<---本地地址
//url: '/api/drummer/8bd17859',
}).then((response)=>{
console.log(JSON.stringify(response.data))
let _data = response.data;
let datalength = _data.length;
for(let i = 0;i < datalength; i++){
this.$set(_data[i], 'editing', false)
}
//赋值
this.modifyData = _data;
}).catch(function(err){
console.log(err)
})
},
handleEdit(index,row){
row.editing = true;
console.log(index)
this.prevValue = JSON.parse(JSON.stringify(row));
},
handleCancle(index,row){
row.editing = false;
let prevContent = this.prevValue.bookname;
this.$set(row,"bookname",prevContent);
},
savemodify(){
console.log(JSON.stringify(this.modifyData))
}
}
}
此处引用本地 JSON 文件 1.1.1.JSON 中的数据源。
[{"bookname":"普通高等教育物联网工程专业规划用书：物联网技术概论","bookbuytime": "2016-05-04","bookbuyer": "李晓月","bookborrower": "王小虎","bookvolume":"1"},{"bookname":"区块链革命：比特币底层技术如何改变货币、商业和世界","bookbuytime": "2016-05-04","bookbuyer": "李晓月","bookborrower": "李小虎","bookvolume":"1"},{"bookname":"大家一起学配色：数学色彩设计全能书","bookbuytime": "2017-12-04","bookbuyer": "张晓月","bookborrower": "王而虎","bookvolume":"1"}]
若不使用获取本地数据的方式，Vue.js 代码可简化为以下形式。
export default {
name:'TestWorld',
data() {
return {
modifyData:[
{
bookname: '普通高等教育物联网工程专业规划用书：物联网技术概论',
bookbuytime: '2016-05-04',
bookbuyer: '李晓月',
bookborrower: '王小虎',
bookvolume: '1',
editing: false
},
{
bookname: '区块链革命：比特币底层技术如何改变货币、商业和世界',
bookbuytime: '2016-05-04',
bookbuyer: '李晓月',
bookborrower: '李小虎',
bookvolume: '1',
editing: false
},
{
bookname: '大家一起学配色：数学色彩设计全能书',
bookbuytime: '2017-12-04',
bookbuyer: '张晓月',
bookborrower: '王而虎',
bookvolume: '1',
editing: false
}
],
prevValue:{}
}
},
methods:{
handleEdit(index,row){ //编辑
row.editing = true;
console.log(index)
this.prevValue = JSON.parse(JSON.stringify(row));
},
handleCancle(index,row){ //取消
row.editing = false;
let prevContent = this.prevValue.bookname;
this.$set(row,"bookname",prevContent);
},
savemodify(){
console.log(JSON.stringify(this.modifyData))
}
}
}
运行界面如图所示。
批量删除行功能实现
最后介绍如何实现批量删除多行数据的功能。
<template>
<div class="TestWorld">
<el-table ref="multipleTable" :data="tableData3" tooltip-effect="dark" style="width: 100%" @selection-change="handleSelectionChange">
<el-table-column type="selection" width="55">
</el-table-column>
<el-table-column label="日期" width="120">
<template slot-scope="scope">{{ scope.row.date }}</template>
</el-table-column>
<el-table-column prop="name" label="姓名" width="120">
</el-table-column>
<el-table-column prop="address" label="地址" show-overflow-tooltip>
</el-table-column>
</el-table>
<div style="margin-top: 20px">
<el-button @click="batchDelete">批量删除</el-button>
<el-button @click="toggleSelection()">取消选择</el-button>
</div>
</div>
</template>
相关的 Vue.js 代码实现如下。
export default {
name:'TestWorld',
data() {
return {
tableData3: [
{
date: '2016-05-03',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
},
{
date: '2016-05-02',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
},
{
date: '2016-05-04',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
},
{
date: '2016-05-01',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
},
{
date: '2016-05-08',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
},{
date: '2016-05-06',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
},{
date: '2016-05-07',
name: '王小虎',
address: '上海市普陀区金沙江路 1518 弄'
}],
multipleSelection: []
}
},
methods:{
toggleSelection(rows) {
if (rows) {
rows.forEach(row => {
this.$refs.multipleTable.toggleRowSelection(row);
});
} else {
this.$refs.multipleTable.clearSelection();
}
},
batchDelete(){
let multData = this.multipleSelection;
let tableData =this.tableData3;
let multDataLen = multData.length;
let tableDataLen = tableData.length;
for(let i = 0; i < multDataLen ;i++){
for(let y=0;y < tableDataLen;y++){
if(JSON.stringify(tableData[y]) == JSON.stringify(multData[i])){ //判断是否相等，相等就删除
this.tableData3.splice(y,1)
console.log("aa")
}
}
}
},
handleSelectionChange(val) {
this.multipleSelection = val;
}
}
}
关于数据验证的具体代码可参考前文示例，相关内容将持续更新。
以上即为 Vue.js 结合 Element UI 表格组件实现添加行、修改、单独删除行及批量删除行的完整操作指南，希望对大家有所帮助，欢迎支持本站。