最近vue项目需要用到三级CheckBox复选框，需要实现全选反选不确定三种状态。但是element-ui table只支持多选行，并不能支持三级及以上的多选，下面通过本文给大家讲解实现方法。
效果图预览：
首先是页面布局，当然也可已使用table，但是自己用flex布局后面更容易增删改查其他功能
<div class="deliverySetting-table">
<div class="table-head">
<div class="selection">
<el-checkbox :indeterminate="indeterminate" v-model="ischeckAll" @change="handleCheckAllChange"></el-checkbox>
</div>
<div class="width185">分区名称</div>
<div class="width265">国家</div>
<div>派送商</div>
</div>
<div class="table-body" v-for="(partition,partitionIndex) in distributorsInfo" :key="partitionIndex">
<div class="selection">
<p><el-checkbox :indeterminate="partition.indeterminate" v-model="partition.selected" @change="handleCheckedCountryAllChange(partitionIndex,partition.partitionId,$event)" :key="partitionIndex"></el-checkbox></p>
</div>
<div class="width185"><p>{{ partition.partitionName }}</p></div>
<div class="width265">
<el-checkbox v-for="country in partition.country" v-model="country.selected" @change="handleCheckedCountryChange(partitionIndex,country.id,partition.partitionId,$event)" :label="country" :key="country.id">{{country.fieldName}}</el-checkbox>
</div>
<div>
<p v-for="(item,index) in partition.country" :key="index">
{{ item.distributors }}
</p>
</div>
</div>
</div>
接下来是数据结构，自定义的，可以更后台商议，但是字段indeterminate（显示不确定状态~符号），selected（CheckBox选中状态）一定要让后台加入到data中，其他可以按照后台数据来。
distributorsInfo:[
{ partitionName:'1区',selected:false,partitionId:1,isIndeterminate:false,
country:[
{ id: "1",fieldName: "奥地利",fieldTableName: "奥地利",distributors:'UPS',selected: false},
{ id: "2",fieldName: "芬兰",fieldTableName: "芬兰",distributors:'UPS',selected: false},
{ id: "3",fieldName: "意大利",fieldTableName: "意大利",distributors:'UPS',selected: false},
{ id: "4",fieldName: "葡萄牙",fieldTableName: "葡萄牙",distributors:'UPS',selected: false},
{ id: "9",fieldName: "西班牙",fieldTableName: "西班牙",distributors:'UPS',selected: false},
{ id: "10",fieldName: "瑞典",fieldTableName: "瑞典",distributors:'UPS',selected: false},]
},
{ partitionName:'2区',selected:false,partitionId:2,isIndeterminate:false,
country:[
{ id: "5",fieldName: "丹麦",fieldTableName: "单买",distributors:'',selected: false},
{ id: "6",fieldName: "法国",fieldTableName: "法国",distributors:'',selected: false},]
},
{ partitionName:'3区',selected:false,partitionId:3,isIndeterminate:false,
country:[
{ id: "7",fieldName: "德国",fieldTableName: "德国",distributors:'YODEL',selected: false},
{ id: "8",fieldName: "瑞士",fieldTableName: "瑞士",distributors:'DPD',selected: false}]
}
],
ischeckAll:false,//一级全选状态
因为此处是三级复选，所以函数为三个change，具体有详细注释可以查看
handleCheckAllChange(e){//一级change事件
this.ischeckAll = e
if(e == true){
this.indeterminate = false
for(var i=0,len=this.distributorsInfo.length; i<len; i++){ //二级全选反选不确定
this.distributorsInfo[i].selected = e
for(var j=0,len1=this.distributorsInfo[i].country.length; j<len1; j++){
this.distributorsInfo[i].country[j].selected = e
}
}
}else{
this.indeterminate = false
for(var i=0,len=this.distributorsInfo.length; i<len; i++){ //三级全选反选不确定
this.distributorsInfo[i].selected = e
for(var j=0,len1=this.distributorsInfo[i].country.length; j<len1; j++){
this.distributorsInfo[i].country[j].selected = e
}
}
}
},
handleCheckedCountryAllChange(index, topId, e){//二级change事件
this.distributorsInfo[index].selected = e//二级勾选后，子级全部勾选或者取消
if(e == false) this.distributorsInfo[index].indeterminate = false //去掉二级不确定状态
var childrenArray = this.distributorsInfo[index].country
if(childrenArray)
for(var i=0,len=childrenArray.length; i<len; i++)
childrenArray[i].selected = e
this.getIsCheckAll()
},
handleCheckedCountryChange(topIndex, sonId, topId, e){//三级change事件
var childrenArray = this.distributorsInfo[topIndex].country
var tickCount = 0, unTickCount = 0, len = childrenArray.length
for(var i = 0; i < len; i++){
if(sonId == childrenArray[i].id) childrenArray[i].selected = e
if(childrenArray[i].selected == true) tickCount++
if(childrenArray[i].selected == false) unTickCount++
}
if(tickCount == len) {//三级级全勾选
this.distributorsInfo[topIndex].selected = true
this.distributorsInfo[topIndex].indeterminate = false
} else if(unTickCount == len) {//三级级全不勾选
this.distributorsInfo[topIndex].selected = false
this.distributorsInfo[topIndex].indeterminate = false
} else {
this.distributorsInfo[topIndex].selected = false
this.distributorsInfo[topIndex].indeterminate = true //添加二级不确定状态
}
this.getIsCheckAll()
},
getIsCheckAll(){
var tickCount = 0, unTickCount = 0, ArrLength = this.distributorsInfo.length
for(var j=0; j<ArrLength; j++){//全选checkbox状态
if(this.distributorsInfo[j].selected == true) tickCount++
if(this.distributorsInfo[j].selected == false) unTickCount++
}
if(tickCount == ArrLength) {//二级全勾选
this.ischeckAll = true
this.indeterminate = false
} else if(unTickCount == ArrLength) {//二级全不勾选
this.ischeckAll = false
this.indeterminate = false
} else {
this.ischeckAll = false
this.indeterminate = true //添加一级不确定状态
}
},
以下是页面完整组件代码可以使用预览
<template>
<div class="deliverySetting">
<div class="deliverySetting-btn">
<div class="tabs-btn ac">
<input type="button" value="分配派送商" @click="showSetDistributorDailog">
</div>
<div class="tabs-btn ac">
<input type="button" value="取消分配" @click="showCancelDistributorDailog">
</div>
</div>
<div class="deliverySetting-table">
<div class="table-head">
<div class="selection">
<el-checkbox :indeterminate="indeterminate" v-model="ischeckAll" @change="handleCheckAllChange"></el-checkbox>
</div>
<div class="width185">分区名称</div>
<div class="width265">国家</div>
<div>派送商</div>
</div>
<div class="table-body" v-for="(partition,partitionIndex) in distributorsInfo" :key="partitionIndex">
<div class="selection">
<p><el-checkbox :indeterminate="partition.indeterminate" v-model="partition.selected" @change="handleCheckedCountryAllChange(partitionIndex,partition.partitionId,$event)" :key="partitionIndex"></el-checkbox></p>
</div>
<div class="width185"><p>{{ partition.partitionName }}</p></div>
<div class="width265">
<el-checkbox v-for="country in partition.country" v-model="country.selected" @change="handleCheckedCountryChange(partitionIndex,country.id,partition.partitionId,$event)" :label="country" :key="country.id">{{country.fieldName}}</el-checkbox>
</div>
<div>
<p v-for="(item,index) in partition.country" :key="index">
{{ item.distributors }}
</p>
</div>
</div>
</div>
<!-- 分配派送商dailog -->
<el-dialog title="分配派送商" :visible.sync="setDistributorDailog" width="480px">
<el-form :model="distributorForm" :rules="rules" class="setDistributorDailog">
<el-form-item label="派送代理商" label-width="120px">
<el-input v-model="distributorForm.vendorName" auto-complete="off" placeholder="请输入供应商名称"></el-input>
</el-form-item>
<el-form-item label="末端派送商" prop="senderName" label-width="120px">
<el-select v-model="distributorForm.senderName"
filterable
allow-create
default-first-option
placeholder="请选派送商名称">
<el-option label="派送商1" value="shanghai"></el-option>
<el-option label="派送商2" value="beijing"></el-option>
</el-select>
</el-form-item>
<el-form-item label="派送商官网" prop="website" label-width="120px">
<el-input v-model="distributorForm.website" auto-complete="off" placeholder="请输入派送商官网"></el-input>
</el-form-item>
</el-form>
<div slot="footer" class="dialog-footer">
<el-button @click="setDistributorDailog = false">取 消</el-button>
<el-button type="primary" @click="setDistributorDailog = false">确 定</el-button>
</div>
</el-dialog>
<!-- 取消分配派送商 -->
<el-dialog title="停止提示" :visible.sync="cancelDistributorDailog" :modal="false" width="480px" custom-class="stop-coupon-dialog">
<p><br></p>
<p class="ac f16">您确定要取消对的派送分配吗？</p>
<p><br></p>
<span slot="footer" class="dialog-footer">
<el-button @click="cancelDistributorDailog = false">取 消</el-button>
<el-button type="primary" @click="cancelDistributorDailog=false">确 定</el-button>
</span>
</el-dialog>
</div>
</template>
<script>
export default {
name:'deliverySetting',
components: {
},
props:{
},
data() {
return {
distributorsInfo:[
{ partitionName:'1区',selected:false,partitionId:1,isIndeterminate:false,
country:[
{ id: "1",fieldName: "奥地利",fieldTableName: "奥地利",distributors:'UPS',selected: false},
{ id: "2",fieldName: "芬兰",fieldTableName: "芬兰",distributors:'UPS',selected: false},
{ id: "3",fieldName: "意大利",fieldTableName: "意大利",distributors:'UPS',selected: false},
{ id: "4",fieldName: "葡萄牙",fieldTableName: "葡萄牙",distributors:'UPS',selected: false},
{ id: "9",fieldName: "西班牙",fieldTableName: "西班牙",distributors:'UPS',selected: false},
{ id: "10",fieldName: "瑞典",fieldTableName: "瑞典",distributors:'UPS',selected: false},]
},
{ partitionName:'2区',selected:false,partitionId:2,isIndeterminate:false,
country:[
{ id: "5",fieldName: "丹麦",fieldTableName: "单买",distributors:'',selected: false},
{ id: "6",fieldName: "法国",fieldTableName: "法国",distributors:'',selected: false},]
},
{ partitionName:'3区',selected:false,partitionId:3,isIndeterminate:false,
country:[
{ id: "7",fieldName: "德国",fieldTableName: "德国",distributors:'YODEL',selected: false},
{ id: "8",fieldName: "瑞士",fieldTableName: "瑞士",distributors:'DPD',selected: false}]
}
],
ischeckAll:false,//一级全选状态
setDistributorDailog:false,
cancelDistributorDailog:false,
distributorForm:{
vendorName:'',
senderName:''
},
indeterminate:false,
rules: {
senderName: [{ required: true, message: '字段不能为空',trigger: 'blur'}],
website: [{ required: true, message: '字段不能为空',trigger: 'blur'}],
},
}
},
computed: {
},
methods: {
handleCheckAllChange(e){//一级change事件
this.ischeckAll = e
if(e == true){
this.indeterminate = false
for(var i=0,len=this.distributorsInfo.length; i<len; i++){ //二级全选反选不确定
this.distributorsInfo[i].selected = e
for(var j=0,len1=this.distributorsInfo[i].country.length; j<len1; j++){
this.distributorsInfo[i].country[j].selected = e
}
}
}else{
this.indeterminate = false
for(var i=0,len=this.distributorsInfo.length; i<len; i++){ //三级全选反选不确定
this.distributorsInfo[i].selected = e
for(var j=0,len1=this.distributorsInfo[i].country.length; j<len1; j++){
this.distributorsInfo[i].country[j].selected = e
}
}
}
},
handleCheckedCountryAllChange(index, topId, e){//二级change事件
this.distributorsInfo[index].selected = e//二级勾选后，子级全部勾选或者取消
if(e == false) this.distributorsInfo[index].indeterminate = false //去掉二级不确定状态
var childrenArray = this.distributorsInfo[index].country
if(childrenArray)
for(var i=0,len=childrenArray.length; i<len; i++)
childrenArray[i].selected = e
this.getIsCheckAll()
},
handleCheckedCountryChange(topIndex, sonId, topId, e){//三级change事件
var childrenArray = this.distributorsInfo[topIndex].country
var tickCount = 0, unTickCount = 0, len = childrenArray.length
for(var i = 0; i < len; i++){
if(sonId == childrenArray[i].id) childrenArray[i].selected = e
if(childrenArray[i].selected == true) tickCount++
if(childrenArray[i].selected == false) unTickCount++
}
if(tickCount == len) {//三级级全勾选
this.distributorsInfo[topIndex].selected = true
this.distributorsInfo[topIndex].indeterminate = false
} else if(unTickCount == len) {//三级级全不勾选
this.distributorsInfo[topIndex].selected = false
this.distributorsInfo[topIndex].indeterminate = false
} else {
this.distributorsInfo[topIndex].selected = false
this.distributorsInfo[topIndex].indeterminate = true //添加二级不确定状态
}
this.getIsCheckAll()
},
getIsCheckAll(){
var tickCount = 0, unTickCount = 0, ArrLength = this.distributorsInfo.length
for(var j=0; j<ArrLength; j++){//全选checkbox状态
if(this.distributorsInfo[j].selected == true) tickCount++
if(this.distributorsInfo[j].selected == false) unTickCount++
}
if(tickCount == ArrLength) {//二级全勾选
this.ischeckAll = true
this.indeterminate = false
} else if(unTickCount == ArrLength) {//二级全不勾选
this.ischeckAll = false
this.indeterminate = false
} else {
this.ischeckAll = false
this.indeterminate = true //添加一级不确定状态
}
},
showSetDistributorDailog(){
this.setDistributorDailog=true
},
showCancelDistributorDailog(){
this.cancelDistributorDailog=true
}
},
created: function() {
},
mounted: function() {
// (async() => {
},
watch: {
}
}
</script>
<style lang="scss">
.deliverySetting{
padding: 20px 0;
position: relative;
.el-table{
thead{
tr{
th{
font-size: 14px;
}
}
}
tbody{
tr{
td{
vertical-align: baseline;
p{
line-height: 30px;
}
.el-checkbox-group{
display: flex;
flex-direction: column;
label{
line-height: 30px;
margin-left: 0;
}
}
}
}
}
}
.deliverySetting-table{
font-size: 14px;
color: #333;
.table-head,
.table-body{
display: flex;
padding: 10px 0;
.selection{
width: 45px;
text-align: center;
line-height: 36px;
}
.width185{
width: 185px;
}
.width265{
width: 265px;
}
}
.table-head{
height: 36px;
align-items: center;
background-color: #E7F2FF;
}
.table-body{
border-bottom: 1px solid #e4e4e4;
color: #666;
&:hover{
background-color: #f5f7fa;
}
.width265{
display: flex;
flex-direction: column;
label{
line-height: 30px;
margin-left: 0;
color: #666;
}
}
p{
line-height: 30px;
}
}
}
.deliverySetting-btn{
/*width: 100%;*/
height: 59px;
display: flex;
justify-content: flex-end;
align-items: center;
position: absolute;
top: -55px;
right: -16px;
z-index: 100;
.tabs-btn {
min-width: 90px;
height: 34px;
line-height: 32px;
padding: 0 10px;
color: #2387f7;
border: solid 1px #4fa2ff;
background-color: #e7f2ff;
cursor: pointer;
&:nth-of-type(2) {
margin: 0 15px;
}
input {
border: none;
background: transparent;
color: inherit;
cursor: inherit;
outline: none;
margin: 0;
padding: 0;
}
&:hover {
color: #fff;
background-color: #2387f7;
}
}
}
.setDistributorDailog{
.el-input{
width: 270px;
}
}
}
</style>
好了，以后使用三级甚至多级复选都可以使用此方法添加change代码即可。
总结
以上所述是小编给大家介绍的vue基于element-ui的三级CheckBox复选框功能的实现代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对三水点靠木网站的支持！