ElementUI table标签展开行
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
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<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:
二、全部展开
增加属性:default-expand-all="true"
test.vue完整代码:
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<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:
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:
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<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:
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:
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<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: