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https://gitee.com/xuliangzhan_admin/vxe-table.git
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270 lines
10 KiB
Vue
270 lines
10 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<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="reloadData"/> 函数<br>
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<table-api-link prop="data"/> 和 <table-api-link prop="loadData"/>/<table-api-link prop="reloadData"/> 不应该同时使用，请根据数据量决定使用哪种方式，保证一致性<br>
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<span class="red">（注：启用纵向虚拟滚启动后不支持动态行高；如果需要支持，将虚拟滚动关闭即可）</span>
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</p>
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<vxe-toolbar>
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<template #buttons>
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<vxe-button @click="loadList(50)">50条</vxe-button>
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<vxe-button @click="loadList(100)">100条</vxe-button>
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<vxe-button @click="loadList(1000)">1k条</vxe-button>
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<vxe-button @click="loadList(5000)">5k条</vxe-button>
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<vxe-button @click="loadList(10000)">1w条</vxe-button>
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<vxe-button @click="loadList(50000)">5w条</vxe-button>
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<vxe-button @click="loadList(100000)">10w条</vxe-button>
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<vxe-button @click="loadList(200000)">20w条</vxe-button>
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<vxe-button @click="loadList(300000)">30w条</vxe-button>
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</template>
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</vxe-toolbar>
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<vxe-table
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border
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resizable
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show-overflow
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show-header-overflow
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ref="xTable"
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height="700"
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:export-config="{}"
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:sort-config="{trigger: 'cell'}"
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:loading="demo1.loading"
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:scroll-y="{enabled: true}">
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<vxe-column type="seq" width="100"></vxe-column>
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<vxe-column field="attr0" title="Attr0" sortable width="200"></vxe-column>
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<vxe-column field="attr1" title="Attr1" width="200"></vxe-column>
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<vxe-column field="attr2" title="Attr2" width="200"></vxe-column>
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<vxe-column field="attr3" title="Attr3" width="200"></vxe-column>
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<vxe-column field="attr4" title="Attr4" width="200"></vxe-column>
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<vxe-column field="attr5" title="Attr5" width="200"></vxe-column>
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<vxe-column field="attr6" title="Attr5" width="300"></vxe-column>
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<vxe-column field="attr7" title="Attr7" width="200"></vxe-column>
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<vxe-column field="attr8" title="Attr8" width="200"></vxe-column>
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<vxe-column field="attr9" title="Attr9" width="200"></vxe-column>
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<vxe-column field="attr10" title="Attr10" width="200"></vxe-column>
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<vxe-column field="attr11" title="Attr11" width="200"></vxe-column>
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<vxe-column field="attr12" title="Attr12" width="200"></vxe-column>
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<vxe-column field="attr13" title="Attr14" width="200"></vxe-column>
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<vxe-column field="attr14" title="Attr14" width="200"></vxe-column>
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<vxe-column field="attr15" title="Attr15" width="200"></vxe-column>
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<vxe-column field="attr16" title="Attr16" width="200"></vxe-column>
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</vxe-table>
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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="typescript">{{ 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/all'
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import { VxeTableInstance } from '../../../../types/index'
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import XEUtils from 'xe-utils'
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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 xTable = ref({} as VxeTableInstance)
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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: 'attr4_row_' + i,
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attr5: 'attr5_row_' + i,
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attr6: 'attr6_row_' + i,
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attr7: 'attr7_row_' + i,
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attr8: 'attr8_row_' + i,
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attr9: 'attr9_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: 'attr13_row_' + i,
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attr14: 'attr14_row_' + i,
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attr15: 'attr15_row_' + i,
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attr16: 'attr16_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 loadList = (rowSize: number) => {
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demo1.loading = true
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mockList(rowSize).then(data => {
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const startTime = Date.now()
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const $table = xTable.value
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// 使用函数式加载
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if ($table) {
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$table.reloadData(data).then(() => {
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VXETable.modal.message({ content: `渲染 ${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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loadList(600)
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})
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return {
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xTable,
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demo1,
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loadList,
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demoCodes: [
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`
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<vxe-toolbar>
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<template #buttons>
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<vxe-button @click="loadList(50)">50条</vxe-button>
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<vxe-button @click="loadList(100)">100条</vxe-button>
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<vxe-button @click="loadList(1000)">1k条</vxe-button>
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<vxe-button @click="loadList(5000)">5k条</vxe-button>
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<vxe-button @click="loadList(10000)">1w条</vxe-button>
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<vxe-button @click="loadList(50000)">5w条</vxe-button>
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<vxe-button @click="loadList(100000)">10w条</vxe-button>
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<vxe-button @click="loadList(200000)">20w条</vxe-button>
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<vxe-button @click="loadList(300000)">30w条</vxe-button>
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</template>
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</vxe-toolbar>
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<vxe-table
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border
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resizable
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show-overflow
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show-header-overflow
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ref="xTable"
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height="700"
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:export-config="{}"
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:sort-config="{trigger: 'cell'}"
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:loading="demo1.loading">
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<vxe-column type="seq" width="100"></vxe-column>
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<vxe-column field="attr0" title="Attr0" sortable width="200"></vxe-column>
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<vxe-column field="attr1" title="Attr1" width="200"></vxe-column>
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<vxe-column field="attr2" title="Attr2" width="200"></vxe-column>
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<vxe-column field="attr3" title="Attr3" width="200"></vxe-column>
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<vxe-column field="attr4" title="Attr4" width="200"></vxe-column>
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<vxe-column field="attr5" title="Attr5" width="200"></vxe-column>
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<vxe-column field="attr6" title="Attr5" width="300"></vxe-column>
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<vxe-column field="attr7" title="Attr7" width="200"></vxe-column>
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<vxe-column field="attr8" title="Attr8" width="200"></vxe-column>
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<vxe-column field="attr9" title="Attr9" width="200"></vxe-column>
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<vxe-column field="attr10" title="Attr10" width="200"></vxe-column>
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<vxe-column field="attr11" title="Attr11" width="200"></vxe-column>
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<vxe-column field="attr12" title="Attr12" width="200"></vxe-column>
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<vxe-column field="attr13" title="Attr14" width="200"></vxe-column>
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<vxe-column field="attr14" title="Attr14" width="200"></vxe-column>
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<vxe-column field="attr15" title="Attr15" width="200"></vxe-column>
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<vxe-column field="attr16" title="Attr16" width="200"></vxe-column>
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</vxe-table>
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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, VxeTableInstance } from '../../../../types/index'
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import XEUtils from 'xe-utils'
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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 xTable = ref({} as VxeTableInstance)
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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: 'attr4_row_' + i,
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attr5: 'attr5_row_' + i,
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attr6: 'attr6_row_' + i,
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attr7: 'attr7_row_' + i,
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attr8: 'attr8_row_' + i,
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attr9: 'attr9_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: 'attr13_row_' + i,
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attr14: 'attr14_row_' + i,
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attr15: 'attr15_row_' + i,
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attr16: 'attr16_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 loadList = (rowSize: number) => {
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demo1.loading = true
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mockList(rowSize).then(data => {
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const startTime = Date.now()
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const $table = xTable.value
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// 使用函数式加载
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if ($table) {
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$table.reloadData(data).then(() => {
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VXETable.modal.message({ content: \`渲染 \${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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loadList(600)
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})
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return {
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xTable,
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demo1,
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loadList
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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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