mirror of
https://gitee.com/xuliangzhan_admin/vxe-table.git
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353 lines
13 KiB
Vue
353 lines
13 KiB
Vue
<template>
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<div>
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<p class="tip">
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虚拟滚动渲染，左右固定列<span class="orange">（最大可以支撑 5w 列、30w 行）</span><br>
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大数据不建议使用双向绑定的 <table-api-link name="data"/> 属性，建议使用 <table-api-link prop="loadData"/>/<table-api-link prop="loadColumn"/> 函数<br>
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对于多选 type=<table-column-api-link prop="checkbox"/> 当数据量海量时应该绑定 <table-api-link prop="checkField"/> 属性渲染速度更快<br>
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<span class="red">(注：如果要启用横向虚拟滚动，不支持分组表头)</span>
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</p>
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<vxe-grid
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border
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show-overflow
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show-header-overflow
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highlight-hover-row
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highlight-current-row
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ref="xGrid"
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height="600"
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:loading="demo1.loading"
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:toolbar-config="{slots: {buttons: 'toolbar_buttons'}}"
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:checkbox-config="{checkField: 'checked', labelField: 'nickname'}">
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<template #toolbar_buttons>
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<vxe-button @click="loadColumnAndData(1000, 5000)">1k列5k条</vxe-button>
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<vxe-button @click="loadColumnAndData(1000, 10000)">1k列1w条</vxe-button>
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<vxe-button @click="loadColumnAndData(5000, 50000)">5k列5w条</vxe-button>
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<vxe-button @click="loadColumnAndData(5000, 100000)">5k列10w条</vxe-button>
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<vxe-button @click="loadColumnAndData(10000, 5000)">1w列5k条</vxe-button>
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<vxe-button @click="loadColumnAndData(10000, 10000)">1w列1w条</vxe-button>
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<vxe-button @click="$refs.xGrid.setAllCheckboxRow(true)">所有选中</vxe-button>
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<vxe-button @click="$refs.xGrid.clearCheckboxRow()">清除选中</vxe-button>
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<vxe-button @click="getSelectEvent">获取选中</vxe-button>
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</template>
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</vxe-grid>
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<pre>
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<pre-code>
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| Arrow Up ↑ | 匀速向上滚动数据 |
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| Arrow Down ↓ | 匀速向下滚动数据 |
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| Arrow Left ← | 匀速向左滚动数据 |
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| Arrow Right → | 匀速向右滚动数据 |
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| Page Up | 向上翻页滚动 |
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| Page Down | 向下翻页滚动 |
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| Spacebar | 翻页滚动 |
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| Home | 滚动到顶部 |
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| End | 滚动到底部 |
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</pre-code>
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</pre>
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<p class="demo-code">{{ $t('app.body.button.showCode') }}</p>
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<pre>
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<pre-code class="xml">{{ demoCodes[0] }}</pre-code>
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<pre-code class="javascript">{{ demoCodes[1] }}</pre-code>
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</pre>
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</div>
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</template>
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<script lang="ts">
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import { defineComponent, nextTick, reactive, ref } from 'vue'
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import { VXETable } from '../../../../packages/vxe-table'
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import { VxeGridInstance } from '../../../../types/vxe-table'
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import XEUtils from 'xe-utils'
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const columnList: any[] = []
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const dataList: any[] = []
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export default defineComponent({
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setup () {
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const demo1 = reactive({
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loading: false,
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tableData: []
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})
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const xGrid = ref({} as VxeGridInstance)
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const mockColumns = (colSize: number): Promise<any[]> => {
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return new Promise(resolve => {
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setTimeout(() => {
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const currSize = columnList.length
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if (currSize < colSize) {
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for (let i = currSize; i < colSize; i++) {
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columnList.push({
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field: 'attr' + i,
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title: 'Attr' + i,
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width: 140,
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fixed: i < 1 ? 'left' : null
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})
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}
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}
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const result = XEUtils.clone(columnList.slice(0, colSize), true)
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resolve(result)
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}, 100)
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})
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}
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const mockList = (rowSize: number): Promise<any[]> => {
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return new Promise(resolve => {
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setTimeout(() => {
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const currSize = dataList.length
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if (currSize < rowSize) {
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for (let i = currSize; i < rowSize; i++) {
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dataList.push({
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checked: false,
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attr0: 'attr0_row_' + i,
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attr1: 'attr1_row_' + i,
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attr2: 'attr2_row_' + i,
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attr3: 'attr3_row_' + i,
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attr4: 'attr3_row_' + i,
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attr5: 'attr3_row_' + i,
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attr10: 'attr10_row_' + i,
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attr11: 'attr11_row_' + i,
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attr12: 'attr12_row_' + i,
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attr13: 'attr12_row_' + i,
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attr14: 'attr12_row_' + i,
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attr50: 'attr50_row_' + i,
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attr51: 'attr51_row_' + i,
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attr52: 'attr52_row_' + i,
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attr53: 'attr53_row_' + i,
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attr54: 'attr54_row_' + i,
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attr100: 'attr100_row_' + i,
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attr101: 'attr101_row_' + i,
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attr102: 'attr102_row_' + i,
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attr103: 'attr103_row_' + i,
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attr105: 'attr105_row_' + i,
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attr104: 'attr104_row_' + i,
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attr106: 'attr106_row_' + i,
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attr107: 'attr107_row_' + i,
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attr400: 'attr100_row_' + i,
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attr401: 'attr401_row_' + i,
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attr402: 'attr402_row_' + i,
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attr403: 'attr403_row_' + i,
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attr404: 'attr404_row_' + i,
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attr405: 'attr405_row_' + i,
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attr406: 'attr405_row_' + i,
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attr407: 'attr405_row_' + i,
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attr1000: 'attr100_row_' + i,
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attr1001: 'attr1001_row_' + i,
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attr1002: 'attr1002_row_' + i,
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attr1003: 'attr1003_row_' + i,
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attr1004: 'attr1004_row_' + i,
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attr1005: 'attr1005_row_' + i,
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attr1006: 'attr1005_row_' + i,
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attr1007: 'attr1005_row_' + i
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})
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}
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}
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const result = XEUtils.clone(dataList.slice(0, rowSize), true)
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resolve(result)
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}, 100)
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})
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}
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const loadColumnAndData = (colSize: number, rowSize: number) => {
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demo1.loading = true
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Promise.all([
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mockColumns(colSize),
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mockList(rowSize)
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]).then(rest => {
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const columns = rest[0]
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const data = rest[1]
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const startTime = Date.now()
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const $grid = xGrid.value
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// 使用函数式加载
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if ($grid) {
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Promise.all([
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$grid.reloadColumn(columns),
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$grid.reloadData(data)
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]).then(() => {
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VXETable.modal.message({ message: `渲染 ${colSize} 列 ${rowSize} 行，用时 ${Date.now() - startTime}毫秒`, status: 'info' })
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demo1.loading = false
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})
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} else {
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demo1.loading = false
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}
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})
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}
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const getSelectEvent = () => {
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const $grid = xGrid.value
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const selectRecords = $grid.getCheckboxRecords()
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VXETable.modal.alert(`${selectRecords.length}`)
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}
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nextTick(() => {
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loadColumnAndData(600, 600)
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})
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return {
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xGrid,
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demo1,
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loadColumnAndData,
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getSelectEvent,
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demoCodes: [
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`
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<vxe-grid
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border
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show-overflow
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show-header-overflow
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highlight-hover-row
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highlight-current-row
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ref="xGrid"
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height="600"
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:loading="demo1.loading"
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:toolbar-config="{slots: {buttons: 'toolbar_buttons'}}"
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:checkbox-config="{checkField: 'checked', labelField: 'nickname'}">
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<template #toolbar_buttons>
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<vxe-button @click="loadColumnAndData(1000, 5000)">1k列5k条</vxe-button>
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<vxe-button @click="loadColumnAndData(1000, 10000)">1k列1w条</vxe-button>
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<vxe-button @click="loadColumnAndData(5000, 50000)">5k列5w条</vxe-button>
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<vxe-button @click="loadColumnAndData(5000, 100000)">5k列10w条</vxe-button>
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<vxe-button @click="loadColumnAndData(10000, 5000)">1w列5k条</vxe-button>
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<vxe-button @click="loadColumnAndData(10000, 10000)">1w列1w条</vxe-button>
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<vxe-button @click="$refs.xGrid.setAllCheckboxRow(true)">所有选中</vxe-button>
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<vxe-button @click="$refs.xGrid.clearCheckboxRow()">清除选中</vxe-button>
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<vxe-button @click="getSelectEvent">获取选中</vxe-button>
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</template>
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</vxe-grid>
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`,
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`
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import { defineComponent, nextTick, reactive, ref } from 'vue'
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import { VXETable, VxeGridInstance } from '../../../../types/vxe-table'
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import XEUtils from 'xe-utils'
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const columnList: any[] = []
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const dataList: any[] = []
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export default defineComponent({
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setup () {
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const demo1 = reactive({
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loading: false,
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tableData: []
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})
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const xGrid = ref({} as VxeGridInstance)
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const mockColumns = (colSize: number): Promise<any[]> => {
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return new Promise(resolve => {
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setTimeout(() => {
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const currSize = columnList.length
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if (currSize < colSize) {
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for (let i = currSize; i < colSize; i++) {
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columnList.push({
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field: 'attr' + i,
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title: 'Attr' + i,
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width: 140
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})
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}
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}
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const result = XEUtils.clone(columnList.slice(0, colSize), true)
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resolve(result)
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}, 100)
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})
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}
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const mockList = (rowSize: number): Promise<any[]> => {
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return new Promise(resolve => {
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setTimeout(() => {
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const currSize = dataList.length
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if (currSize < rowSize) {
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for (let i = currSize; i < rowSize; i++) {
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dataList.push({
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checked: false,
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attr0: 'attr0_row_' + i,
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attr1: 'attr1_row_' + i,
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attr2: 'attr2_row_' + i,
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attr3: 'attr3_row_' + i,
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attr4: 'attr3_row_' + i,
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attr5: 'attr3_row_' + i,
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attr10: 'attr10_row_' + i,
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attr11: 'attr11_row_' + i,
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attr12: 'attr12_row_' + i,
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attr13: 'attr12_row_' + i,
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attr14: 'attr12_row_' + i,
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attr50: 'attr50_row_' + i,
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attr51: 'attr51_row_' + i,
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attr52: 'attr52_row_' + i,
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attr53: 'attr53_row_' + i,
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attr54: 'attr54_row_' + i,
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attr100: 'attr100_row_' + i,
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attr101: 'attr101_row_' + i,
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attr102: 'attr102_row_' + i,
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attr103: 'attr103_row_' + i,
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attr105: 'attr105_row_' + i,
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attr104: 'attr104_row_' + i,
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attr106: 'attr106_row_' + i,
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attr107: 'attr107_row_' + i,
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attr400: 'attr100_row_' + i,
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attr401: 'attr401_row_' + i,
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attr402: 'attr402_row_' + i,
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attr403: 'attr403_row_' + i,
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attr404: 'attr404_row_' + i,
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attr405: 'attr405_row_' + i,
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attr406: 'attr405_row_' + i,
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attr407: 'attr405_row_' + i,
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attr1000: 'attr100_row_' + i,
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attr1001: 'attr1001_row_' + i,
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attr1002: 'attr1002_row_' + i,
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attr1003: 'attr1003_row_' + i,
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attr1004: 'attr1004_row_' + i,
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attr1005: 'attr1005_row_' + i,
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attr1006: 'attr1005_row_' + i,
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attr1007: 'attr1005_row_' + i
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})
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}
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}
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const result = XEUtils.clone(dataList.slice(0, rowSize), true)
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resolve(result)
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}, 100)
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})
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}
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const loadColumnAndData = (colSize: number, rowSize: number) => {
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demo1.loading = true
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Promise.all([
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mockColumns(colSize),
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mockList(rowSize)
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]).then(rest => {
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const columns = rest[0]
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const data = rest[1]
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const startTime = Date.now()
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const $grid = xGrid.value
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// 使用函数式加载
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if ($grid) {
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Promise.all([
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$grid.reloadColumn(columns),
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$grid.reloadData(data)
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]).then(() => {
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VXETable.modal.message({ message: \`渲染 \${colSize} 列 \${rowSize} 行，用时 \${Date.now() - startTime}毫秒\`, status: 'info' })
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demo1.loading = false
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})
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} else {
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demo1.loading = false
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}
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})
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}
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nextTick(() => {
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loadColumnAndData(600, 600)
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})
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return {
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xGrid,
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demo1,
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loadColumnAndData
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}
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}
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}
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`
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]
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}
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}
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})
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</script>
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