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a-virtual-table

v1.1.3

Published

The virtual scrolling component developed based on the Table component of Ant Design supports dynamic height and solves the problem of scrolling stuck when the amount of data is large.

Downloads

51

Readme

a-virtual-table

基于Ant-Design-Vue的 Table 组件开发的虚拟滚动组件,支持动态高度,解决数据量大时滚动卡顿的问题。

⚠️仅支持vue2、Ant-Design-Vue@1。

demo & 源码:https://xiaocheng555.github.io/a-virtual-table/

安装

# for npm:
$ npm i a-virtual-table -S
# for yarn:
$ yarn add a-virtual-table -S

用法

<template>
  <div>
    <a-virtual-table
      :columns="columns"
      :data-source="list"
      :itemSize="54"
      keyProp="id"
      row-key="id"
      :pagination="false"
      :scroll="{ x: 1300, y: 800 }">
      <a slot="name" slot-scope="{text}">{{ text }}===</a>
    </a-virtual-table>
  </div>
</template>

<script>
import { mockData } from '@/utils'
import AVirtualTable from '../a-virtual-table'

export default {
  components: {
    AVirtualTable
  },
  data () {
    return {
      columns: [
        {
          title: 'Name',
          dataIndex: 'name',
          key: 'name',
          scopedSlots: { customRender: 'name' },
          fixed: 'left',
          width: 200
        },
        {
          title: 'id',
          dataIndex: 'id',
          key: 'id',
          width: 100
        },
        {
          title: 'text',
          dataIndex: 'text',
          key: 'text',
          width: 400
        },
        {
          title: 'Address',
          dataIndex: 'address',
          key: 'address 1',
          ellipsis: true,
          width: 400
        },
        {
          title: 'Long Column Long Column Long Column',
          dataIndex: 'address',
          key: 'address 2',
          ellipsis: true,
          width: 300
        },
        {
          title: 'Long Column Long Column',
          dataIndex: 'address',
          key: 'address 3',
          ellipsis: true,
          width: 300
        },
        {
          title: 'Long Column',
          dataIndex: 'address',
          key: 'address 4',
          ellipsis: true,
          width: 300,
          fixed: 'right',
        }
      ],
      list: mockData(0, 2000)
    }
  }
}
</script>

a-virtual-table 组件

Props

| 参数 | 说明 | 类型 | 可选值 | 默认值 | |---------- |-------------- |---------- |-------------------------------- |-------- | | dataSource | 总数据 | Array | 必填 | | | keyProp | key值,data数据中的唯一id【⚠️若keyProp未设置或keyProp值不唯一,可能导致表格空数据或者滚动时渲染的数据断层、不连贯】 | string | — | id | | itemSize | 每一行的预估高度 | number | — | 60 | | scrollBox | 指定滚动容器;在指定滚动容器时,如果表格设置了height高度,则滚动容器为表格内的滚动容器;如果表格为设置height高度,则自动获取父层以外的滚动容器,直至window容器为止 | string | 'window'、css选择器 | - | | buffer | 顶部和底部缓冲区域,值越大显示表格的行数越多 | Number | — | 200 | | throttleTime | 滚动事件的节流时间 | number | — | 10 | | dynamic | 动态获取表格行高度,默认开启。设置为false时,则以itemSize为表格行的真实高度,能大大减少虚拟滚动计算量,减少滚动白屏;如果itemSize与表格行的真实高度不一致,可能导致滚动时表格数据错乱 | boolean | — | true | | virtualized | 是否开启虚拟滚动 | boolean | — | true | | * | 支持 <a-table> 组件的props属性,更多请看 <a-table> api | - | — | - |

Methods

| 方法名 | 说明 | 参数 | |---------- |-------- |---------- | | scrollTo | 滚动到第几行;index - 行数索引值;offset - 偏移位置 | (index: number, offset: number) | | update | 更新 | - | | clearSelection | 用于多选 <virtual-column type="selection">,清空用户的选择 | - | | toggleRowSelection | 用于多选 <virtual-column type="selection">, 切换某一行的选中状态,如果使用了第二个参数,则是设置这一行选中与否(selected 为 true 则选中) | row, selected |

Events

| 事件名称 | 说明 | 参数 | |---------- |-------- |---------- | | change | 计算完成真实显示的表格行数 | (renderData, start, end):renderData 真实渲染的数据,start和end指的是渲染的数据在总数据的开始到结束的区间范围 | | selection-change | 虚拟表格多选选项发生更改时触发事件 | selectedRows |

a-virtual-tree 组件 (>= 1.1.0)

自定义树型结构,性能更好

引入

import AVirtualTable, { AVirtualTree } from 'a-virtual-table'
...

<a-virtual-tree :row="record" :load="onload">...</a-virtual-tree>

Props

| 参数 | 说明 | 类型 | 可选值 | 默认值 | |---------- |-------------- |---------- |-------------------------------- |-------- | | * | 支持 <el-table-column> 组件的props属性,如label, fixed, prop, width, min-width, index 等等 | - | — | - | | indentSize | 展示树形数据时,树节点的缩进, | Number | — | 20 | | load | 加载子节点数据的函数 | Function(row, resolve) | — | - |

Methods

| 方法名 | 说明 | 参数 | |---------- |-------- |---------- | | expand | 展开行,其中 expandKeys 为展开行的 keys 数组;expanded 为展开或收起,默认为true;doLoad 为当展开时,是否展开新的行(调用load方法),默认为true(>=1.0.25版本支持)| Function(expandKeys, expanded, doLoad) | expandPath | 展开目标路径,keyPath为路径数组,如['key1', 'key2', 'key3'],该方法会展开 key1 -> key2 -> key3 对应的树节点(>=1.0.25版本支持) | keyPath: Array | | expandAll | 展开所有行(>=1.0.25版本支持) | - | | unexpandAll | 收起所有行(>=1.0.25版本支持) | - |

a-virtual-table 组件注意事项

  • 使用组件前,请确保项目中有引入 ant-design-vue 组件库。

  • 确保keyProp传入值是唯一值,使用类似于rowKey。建议keyProp、rowKey使用相同值。

  • 不支持 <a-table> 原来的多选模式,需要在 column列中设置 type="selection"来设置多选,详见demo。

  • 扩展行中不支持使用 :expandedRowKeys.sync="expandedRowKeys" 的sync双向绑定,详见demo。

  • 尽量减少使用左右固定列(或只使用右固定列),滚动会更流畅

更新内容

2023-1-13

  • 修复滚动容器设置为window时报错

  • 修复指定滚动容器,偶现滚动时表头会一直在

  • npm 1.0.5版本发版

2023-1-15

  • 支持 keep-alive 缓存

  • npm 1.0.6版本发版

2023-1-15

  • keep-alive 缓存时,修复固定列x轴滚动位置未恢复

2023-3-15

  • npm 1.0.7版本发版

  • 修复表格无数据时,表头滚动会抽搐

  • 增加搜索、筛选的demo

2023-4-23

  • npm 1.0.8版本发版

  • 修复没有x轴滚动条,设置scroll.x不准确时会导致网格列对不齐

2023-6-19

  • npm 1.0.9版本发版

  • 支持自定义头部

2023-11-13

  • 修复插槽获取不了record、index的值

2023-12-6

  • 兼容树形结构

  • 支持自定义树形结构

  • npm 1.1.1 版本发版

2023-12-12

  • 修复自定义表格树刷新数据后,子节点无法展开

  • npm 1.1.2 版本发包

2023-6-14

  • 修复 demo 的搜索筛选功能不可用

  • npm 1.1.3 版本发包