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https://gitee.com/xuliangzhan_admin/vxe-table.git
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71 lines
2.5 KiB
Vue
71 lines
2.5 KiB
Vue
<template>
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<div>
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<p>可视渲染，加载 10 万行 1 万列，左右固定列，表尾合计</p>
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<p><grid-api-link name="vxe-grid"/> 的性能比 <table-api-link name="vxe-table"/> 快 n 倍，因为不需要为每个 <table-column-api-link name="vxe-table-column"/> 创建实例，列越多越能体现出来</p>
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<p>大数据不建议使用双向绑定的 <table-api-link name="data"/> 属性（vue 监听会大数据会短暂的卡顿），建议使用 <table-api-link prop="loadData"/>/<table-api-link prop="reloadData"/> 函数</p>
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<p>对于多选 type=<table-column-api-link prop="selection"/> 当数据量海量时应该绑定 <table-api-link prop="checkProp"/> 属性渲染速度可以提升n倍以上</p>
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<p>数据超大情况下必须使用：<table-api-link prop="show-all-overflow"/>，<table-api-link prop="show-header-all-overflow"/> 参数以及调整好 <table-api-link prop="optimization"/> ：{scrollX,scrollY} 适合的参数可以更加流畅</p>
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<vxe-grid
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ref="xTable"
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border
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resizable
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show-footer
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show-all-overflow
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show-header-all-overflow
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height="600"
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:footer-method="footerMethod"
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:footer-cell-class-name="footerCellClassName"
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:loading="loading"
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:columns="tableColumn"
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:select-config="{checkProp: 'checked'}"
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:optimization ="{scrollX: {gt: 20, oSize: 4, rSize: 8}, scrollY: {gt: 500, oSize: 20, rSize: 60}}">
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</vxe-grid>
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</div>
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</template>
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<script>
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export default {
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data () {
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return {
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loading: false,
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tableColumn: [],
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footerData: []
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}
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},
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created () {
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this.loading = true
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this.$nextTick(() => {
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this.$refs.xTable.reloadData([])
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setTimeout(() => {
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if (this.$refs.xTable) {
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this.tableData = window.MOCK_DATA_LIST.slice(0, 100000)
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this.tableColumn = window.MOCK_COLUMN_LIST.slice(0, 10000)
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this.$refs.xTable.reloadData(this.tableData)
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// 此为演示用，由于数据太过庞大，前端计算耗时太久
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this.footerData = [
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Array.from(new Array(10000)).map(item => '-'),
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Array.from(new Array(10000)).map(item => '-')
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]
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}
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this.loading = false
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}, 300)
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})
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},
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methods: {
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footerCellClassName ({ rowIndex, column, columnIndex }) {
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if (columnIndex === 0) {
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if (rowIndex === 0) {
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return 'col-blue'
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} else {
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return 'col-red'
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}
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}
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},
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footerMethod ({ columns, data }) {
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return this.footerData
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}
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}
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}
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</script>
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