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社区首页 >专栏 >ElementUI table标签展开行

ElementUI table标签展开行

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py3study
发布于 2021-04-22 15:19:33
2.2K0
发布于 2021-04-22 15:19:33
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文章被收录于专栏：python3python3

一、概述

当行内容过多并且不想显示横向滚动条时，可以使用 Table 展开行功能。

官方示例：

test.vue

代码语言：javascript
复制
<template>
??<el-table
????:data="tableData"
????style="width:?100%">
????<el-table-column?type="expand">
??????<template?slot-scope="props">
????????<el-form?label-position="left"?inline?class="demo-table-expand">
??????????<el-form-item?label="商品名称">
????????????<span>{{?props.row.name?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="所属店铺">
????????????<span>{{?props.row.shop?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品?ID">
????????????<span>{{?props.row.id?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="店铺?ID">
????????????<span>{{?props.row.shopId?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品分类">
????????????<span>{{?props.row.category?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="店铺地址">
????????????<span>{{?props.row.address?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品描述">
????????????<span>{{?props.row.desc?}}</span>
??????????</el-form-item>
????????</el-form>
??????</template>
????</el-table-column>
????<el-table-column
??????label="商品?ID"
??????prop="id">
????</el-table-column>
????<el-table-column
??????label="商品名称"
??????prop="name">
????</el-table-column>
????<el-table-column
??????label="描述"
??????prop="desc">
????</el-table-column>
??</el-table>
</template>

<style>
??.demo-table-expand?{
????font-size:?0;
??}
??.demo-table-expand?label?{
????width:?90px;
????color:?#99a9bf;
??}
??.demo-table-expand?.el-form-item?{
????margin-right:?0;
????margin-bottom:?0;
????width:?50%;
??}
</style>

<script>
??export?default?{
????data()?{
??????return?{
????????tableData:?[{
??????????id:?'12987122',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987123',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987125',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987126',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????}]
??????}
????}
??}
</script>

刷新页面，效果如下：

1.png
1.png

二、全部展开

增加属性:default-expand-all="true"

test.vue完整代码：

代码语言：javascript
复制
<template>
??<el-table
????:data="tableData"?:default-expand-all="true"
????style="width:?100%">
????<el-table-column?type="expand">
??????<template?slot-scope="props">
????????<el-form?label-position="left"?inline?class="demo-table-expand">
??????????<el-form-item?label="商品名称">
????????????<span>{{?props.row.name?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="所属店铺">
????????????<span>{{?props.row.shop?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品?ID">
????????????<span>{{?props.row.id?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="店铺?ID">
????????????<span>{{?props.row.shopId?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品分类">
????????????<span>{{?props.row.category?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="店铺地址">
????????????<span>{{?props.row.address?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品描述">
????????????<span>{{?props.row.desc?}}</span>
??????????</el-form-item>
????????</el-form>
??????</template>
????</el-table-column>
????<el-table-column
??????label="商品?ID"
??????prop="id">
????</el-table-column>
????<el-table-column
??????label="商品名称"
??????prop="name">
????</el-table-column>
????<el-table-column
??????label="描述"
??????prop="desc">
????</el-table-column>
??</el-table>
</template>

<style>
??.demo-table-expand?{
????font-size:?0;
??}
??.demo-table-expand?label?{
????width:?90px;
????color:?#99a9bf;
??}
??.demo-table-expand?.el-form-item?{
????margin-right:?0;
????margin-bottom:?0;
????width:?50%;
??}
</style>

<script>
??export?default?{
????data()?{
??????return?{
????????tableData:?[{
??????????id:?'12987122',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987123',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987125',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987126',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????}]
??????}
????}
??}
</script>

刷新页面，效果如下：

1.png
1.png

三、指定某一行默认展示

需要增加属性

:row-key="getRowKeys" :expand-row-keys="expands"

比如：指定第二行，默认展开

test.vue完整代码：

代码语言：javascript
复制
<template>
??<el-table
????:data="tableData"?:row-key="getRowKeys"
????:expand-row-keys="expands"
????style="width:?100%">
????<el-table-column?type="expand">
??????<template?slot-scope="props">
????????<el-form?label-position="left"?inline?class="demo-table-expand">
??????????<el-form-item?label="商品名称">
????????????<span>{{?props.row.name?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="所属店铺">
????????????<span>{{?props.row.shop?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品?ID">
????????????<span>{{?props.row.id?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="店铺?ID">
????????????<span>{{?props.row.shopId?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品分类">
????????????<span>{{?props.row.category?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="店铺地址">
????????????<span>{{?props.row.address?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品描述">
????????????<span>{{?props.row.desc?}}</span>
??????????</el-form-item>
????????</el-form>
??????</template>
????</el-table-column>
????<el-table-column
??????label="商品?ID"
??????prop="id">
????</el-table-column>
????<el-table-column
??????label="商品名称"
??????prop="name">
????</el-table-column>
????<el-table-column
??????label="描述"
??????prop="desc">
????</el-table-column>
??</el-table>
</template>

<style>
??.demo-table-expand?{
????font-size:?0;
??}
??.demo-table-expand?label?{
????width:?90px;
????color:?#99a9bf;
??}
??.demo-table-expand?.el-form-item?{
????margin-right:?0;
????margin-bottom:?0;
????width:?50%;
??}
</style>

<script>
??export?default?{
????data()?{
??????return?{
????????tableData:?[{
??????????id:?'12987122',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987123',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987125',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987126',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????}],
????????//?获取row的key值
????????getRowKeys(row)?{
??????????return?row.id;
????????},
????????//?要展开的行，数值的元素是row的key值
????????expands:?[]
??????}
????},
????mounted()?{
??????//?在这里你想初始化的时候展开哪一行都可以了
??????this.expands.push(this.tableData[1].id);
????}
??}
</script>

刷新页面，效果如下：

1.png
1.png

四、点击某行，默认展开

现有一个需求，展开某行后，再次刷新页面后，默认展开刚才点击的那一行。

需要添加属性?@current-change

这里还使用了localStorage用来存储，点击过的行id。实际生产环境，可以使用vuex来存储点击的id。

test.vue完整代码如下：

代码语言：javascript
复制
<template>
??<el-table
????:data="tableData"?:row-key="getRowKeys"
????:expand-row-keys="expands"
????@current-change="toggleRowExpansion"
????style="width:?100%">
????<el-table-column?type="expand">
??????<template?slot-scope="props">
????????<el-form?label-position="left"?inline?class="demo-table-expand">
??????????<el-form-item?label="商品名称">
????????????<span>{{?props.row.name?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="所属店铺">
????????????<span>{{?props.row.shop?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品?ID">
????????????<span>{{?props.row.id?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="店铺?ID">
????????????<span>{{?props.row.shopId?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品分类">
????????????<span>{{?props.row.category?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="店铺地址">
????????????<span>{{?props.row.address?}}</span>
??????????</el-form-item>
??????????<el-form-item?label="商品描述">
????????????<span>{{?props.row.desc?}}</span>
??????????</el-form-item>
????????</el-form>
??????</template>
????</el-table-column>
????<el-table-column
??????label="商品?ID"
??????prop="id">
????</el-table-column>
????<el-table-column
??????label="商品名称"
??????prop="name">
????</el-table-column>
????<el-table-column
??????label="描述"
??????prop="desc">
????</el-table-column>
??</el-table>
</template>

<style>
??.demo-table-expand?{
????font-size:?0;
??}
??.demo-table-expand?label?{
????width:?90px;
????color:?#99a9bf;
??}
??.demo-table-expand?.el-form-item?{
????margin-right:?0;
????margin-bottom:?0;
????width:?50%;
??}
</style>

<script>
??export?default?{
????data()?{
??????return?{
????????tableData:?[{
??????????id:?'12987122',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987123',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987125',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????},?{
??????????id:?'12987126',
??????????name:?'好滋好味鸡蛋仔',
??????????category:?'江浙小吃、小吃零食',
??????????desc:?'荷兰优质淡奶，奶香浓而不腻',
??????????address:?'上海市普陀区真北路',
??????????shop:?'王小虎夫妻店',
??????????shopId:?'10333'
????????}],
????????//?获取row的key值
????????getRowKeys(row)?{
??????????return?row.id;
????????},
????????//?要展开的行，数值的元素是row的key值
????????expands:?[]
??????}
????},
????mounted()?{
??????console.log('check_id',localStorage.getItem('check_id'))
??????//?默认将check_id添加到列表中，用于刷新默认展开指定的行
??????this.expands.push(localStorage.getItem('check_id'));
????},
????methods:{
??????toggleRowExpansion(row){
????????//?console.log("toggleRowExpansion",row)
????????//?清空数组
????????this.expands?=?[];
????????//?添加指定的id
????????this.expands.push(row.id);
????????//?保存点击的id
????????localStorage.setItem('check_id',row.id)
??????},
????}
??}
</script>

刷新页面，点击第3行，然后刷新页面，效果如下：

1.png
1.png

本文参考链接： https://segmentfault.com/q/1010000008981772

本文参与?腾讯云自媒体分享计划，分享自作者个人站点/博客。
原始发表：2021-04-20 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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本文分享自 作者个人站点/博客?前往查看

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目录
  • 一、概述
  • 二、全部展开
  • 三、指定某一行默认展示
  • 四、点击某行，默认展开
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