Antd VUE中table子表同时只展开一个子信息的说明

前言

在网上搜索了很久，很多方法都不太好用，不过经过整理发现，有一个方式是最简单的，比网路上那些copy粘贴的千篇一律的错来说，其实真正的使用方式很简单

想必大家要实现的效果都是上图这样的

<template>
  <a-table :columns="columns" :data-source="data" class="components-table-demo-nested">
    <a slot="operation" slot-scope="text">Publish</a>
    <a-table
      slot="expandedRowRender"
      slot-scope="text"
      :columns="innerColumns"
      :data-source="innerData"
      :pagination="false"
    >
      <span slot="status" slot-scope="text"> <a-badge status="success" />Finished </span>
      <span slot="operation" slot-scope="text" class="table-operation">
        <a>Pause</a>
        <a>Stop</a>
        <a-dropdown>
          <a-menu slot="overlay">
            <a-menu-item>
              Action 1
            </a-menu-item>
            <a-menu-item>
              Action 2
            </a-menu-item>
          </a-menu>
          <a> More <a-icon type="down" /> </a>
        </a-dropdown>
      </span>
    </a-table>
  </a-table>
</template>
<script>
const columns = [
  { title: 'Name', dataIndex: 'name', key: 'name' },
  { title: 'Platform', dataIndex: 'platform', key: 'platform' },
  { title: 'Version', dataIndex: 'version', key: 'version' },
  { title: 'Upgraded', dataIndex: 'upgradeNum', key: 'upgradeNum' },
  { title: 'Creator', dataIndex: 'creator', key: 'creator' },
  { title: 'Date', dataIndex: 'createdAt', key: 'createdAt' },
  { title: 'Action', key: 'operation', scopedSlots: { customRender: 'operation' } },
];
 
const data = [];
for (let i = 0; i < 3; ++i) {
  data.push({
    key: i,
    name: 'Screem',
    platform: 'iOS',
    version: '10.3.4.5654',
    upgradeNum: 500,
    creator: 'Jack',
    createdAt: '2014-12-24 23:12:00',
  });
}
 
const innerColumns = [
  { title: 'Date', dataIndex: 'date', key: 'date' },
  { title: 'Name', dataIndex: 'name', key: 'name' },
  { title: 'Status', key: 'state', scopedSlots: { customRender: 'status' } },
  { title: 'Upgrade Status', dataIndex: 'upgradeNum', key: 'upgradeNum' },
  {
    title: 'Action',
    dataIndex: 'operation',
    key: 'operation',
    scopedSlots: { customRender: 'operation' },
  },
];
 
const innerData = [];
for (let i = 0; i < 3; ++i) {
  innerData.push({
    key: i,
    date: '2014-12-24 23:12:00',
    name: 'This is production name',
    upgradeNum: 'Upgraded: 56',
  });
}
 
export default {
  data() {
    return {
      data,
      columns,
      innerColumns,
      innerData,
    };
  },
};
</script>

@expand 事件中可以监听到当前子项展开事件
回调参数 Function(expanded, record)
当expanded为true时表示展开了，并且能通过record获取ID等信息

:expandedRowKeys="expandedRowKeys"

可以在return data中定义 expandedRowKeys=[]

在每次展开时将record.id放入其中，如果想关闭其他展开的子项，那么只需要在放record.id前初始化一下expandedRowKeys的值即可

大致方式如下
this.expandedRowKeys=[] this.expandedRowKeys.push(record.id)

真的就是这么简单