饿了么ui组件table点击tr展开单行_饿了么组件侧边导航项点击一个展开另外一个收起来-优快云博客

首先官方给出的案例：

<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>

我们按照步骤来，根据文档查阅内涵row-key、@row-click、expand-row-keys

那么我们代码只需要在el-table标签属性中新增：

row-key="id" @row-click="rowClick" :expand-row-keys="expands"

id是我们的数据id，rowClick则是一个函数 expands则对应一个数组

如果表格中内涵@click这类事件，需要新增.stop.prevent 事件冒泡

接下来编写数组删除组件utils/arr.js;

// 数组原型上扩展删除方法
Array.prototype.remove = function (val) {
  let index = this.indexOf(val);
  if (index > -1) {
    this.splice(index, 1);
  }
};

引入我们的数组删除

import "@/utils/arr";

在date中新增：

data() {
    return {
        ...
        expands: [] //要展开的行，数组的元素是row的key值
        ...
    }
}

最后只需要编写点击的table函数即可

// table 单行点击，展开详情
    rowClick(row, event, colum) {
      if (this.expands.indexOf(row.id) < 0) {
        this.expands = [];
        this.expands.push(row.id);
      } else {
        this.expands.remove(row.id);
      }
    },

主要的文件源码只有2个

arr.js与table.vue

table.vue源码：

<template>
  <el-table
    :data="tableData"
    style="width: 100%">
    <el-table-column type="expand" row-key="id" @row-click="rowClick" :expand-row-keys="expands">
      <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>
import "@/utils/arr";
//引入我们的数组
  export default {
    data() {
      return {
        expands: [], //要展开的行，数组的元素是row的key值
        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'
        }]
      }
    },
    methods: {
    // table 单行点击，展开详情
    rowClick(row, event, colum) {
      if (this.expands.indexOf(row.id) < 0) {
        this.expands = [];
        this.expands.push(row.id);
      } else {
        this.expands.remove(row.id);
      }
    },
}
  }
</script>