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https://gitee.com/xuliangzhan_admin/vxe-table.git
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315 lines
11 KiB
Vue
315 lines
11 KiB
Vue
<template>
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<div>
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<p class="tip">
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树形虚拟滚动渲染<span class="orange">（最大可以支撑 1w 列、10w 行）</span>，具体兼容请查看 <a class="link" href="https://github.com/x-extends/vxe-table-plugin-virtual-tree" target="_blank">vxe-table-plugin-virtual-tree</a> 插件的 API<br>
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<span class="red">（注：启用纵向虚拟滚的后不支持动态行高）</span>
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</p>
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<vxe-virtual-tree
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resizable
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show-overflow
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row-key
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ref="xVTree"
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height="500"
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:loading="loading"
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:data="tableData"
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:toolbar="{slots: {buttons: 'toolbar_buttons'}}"
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:checkbox-config="{labelField: 'name', checkField: 'checked', halfField: 'indeterminate'}"
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:tree-config="{children: 'children'}"
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:columns="tableColumn">
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<template v-slot:toolbar_buttons>
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<vxe-button @click="loadData(1000)">加载1k节点</vxe-button>
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<vxe-button @click="loadData(5000)">加载5k节点</vxe-button>
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<vxe-button @click="loadData(10000)">加载1w节点</vxe-button>
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<vxe-button @click="loadData(30000)">加载3w节点</vxe-button>
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<vxe-button @click="loadData(50000)">加载5w节点</vxe-button>
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<vxe-button @click="$refs.xVTree.setAllTreeExpand(true)">展开所有</vxe-button>
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<vxe-button @click="$refs.xVTree.setAllTreeExpand(false)">收起所有</vxe-button>
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<vxe-button @click="getSelectionEvent">获取选中</vxe-button>
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</template>
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</vxe-virtual-tree>
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<p class="demo-code">{{ $t('app.body.button.showCode') }}</p>
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<pre>
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<code class="xml">{{ demoCodes[0] }}</code>
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<code class="javascript">{{ demoCodes[1] }}</code>
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</pre>
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</div>
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</template>
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<script>
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import hljs from 'highlight.js'
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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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tableData: [],
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tableColumn: [
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{ type: 'seq', title: '序号', width: 100 },
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{ type: 'checkbox', title: 'Name', treeNode: true },
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{ field: 'id', title: 'ID' }
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],
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demoCodes: [
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`
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<vxe-virtual-tree
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resizable
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show-overflow
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row-key
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ref="xVTree"
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height="500"
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:loading="loading"
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:data="tableData"
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:toolbar="{slots: {buttons: 'toolbar_buttons'}}"
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:checkbox-config="{labelField: 'name', checkField: 'checked', halfField: 'indeterminate'}"
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:tree-config="{children: 'children'}"
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:columns="tableColumn">
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<template v-slot:toolbar_buttons>
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<vxe-button @click="loadData(1000)">加载1k节点</vxe-button>
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<vxe-button @click="loadData(5000)">加载5k节点</vxe-button>
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<vxe-button @click="loadData(10000)">加载1w节点</vxe-button>
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<vxe-button @click="loadData(30000)">加载3w节点</vxe-button>
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<vxe-button @click="loadData(50000)">加载5w节点</vxe-button>
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<vxe-button @click="$refs.xVTree.setAllTreeExpand(true)">展开所有</vxe-button>
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<vxe-button @click="$refs.xVTree.setAllTreeExpand(false)">收起所有</vxe-button>
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<vxe-button @click="getSelectionEvent">获取选中</vxe-button>
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</template>
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</vxe-virtual-tree>
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`,
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`
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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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tableData: [],
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tableColumn: [
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{ type: 'seq', title: '序号', width: 100 },
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{ type: 'checkbox', title: 'Name', treeNode: true },
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{ field: 'id', title: 'ID' }
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]
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}
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},
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created () {
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this.loadData(500)
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},
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methods: {
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loadData (size) {
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this.loading = true
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this.getTreeList(size).then(data => {
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const startTime = Date.now()
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this.tableData = data
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this.loading = false
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this.$nextTick(() => {
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this.$XModal.message({ message: \`渲染 \${size} 行，用时 \${Date.now() - startTime}毫秒\`, status: 'info' })
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})
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})
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},
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getTreeList (size) {
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return new Promise(resolve => {
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// 模拟后台生成树结构
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setTimeout(() => {
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const len1 = size / 2
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const len2 = 3
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const len3 = 2
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const len4 = 2
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const len5 = 6
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const result = []
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const startIndex = 10000
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let ketIndex = 0
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for (let index1 = 0; index1 < len1; index1++) {
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if (ketIndex >= size) {
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break
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}
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const children1 = []
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for (let index2 = 0; index2 < len2; index2++) {
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if (ketIndex >= size) {
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break
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}
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const children2 = []
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for (let index3 = 0; index3 < len3; index3++) {
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if (ketIndex >= size) {
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break
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}
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const children3 = []
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for (let index4 = 0; index4 < len4; index4++) {
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if (ketIndex >= size) {
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break
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}
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const children4 = []
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for (let index5 = 0; index5 < len5; index5++) {
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if (ketIndex >= size) {
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break
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}
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const item5 = {
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id: startIndex + ketIndex++,
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name: \`name\${index1}_\${index2}_\${index3}_\${index4}_\${index5}\`,
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checked: false,
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indeterminate: false,
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children: []
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}
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children4.push(item5)
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}
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const item4 = {
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id: startIndex + ketIndex++,
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name: \`name\${index1}_\${index2}_\${index3}_\${index4}\`,
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checked: false,
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indeterminate: false,
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children: children4
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}
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children3.push(item4)
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}
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const item3 = {
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id: startIndex + ketIndex++,
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name: \`name\${index1}_\${index2}_\${index3}\`,
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checked: false,
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indeterminate: false,
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children: children3
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}
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children2.push(item3)
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}
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const item2 = {
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id: startIndex + ketIndex++,
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name: \`name\${index1}_\${index2}\`,
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checked: false,
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indeterminate: false,
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children: children2
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}
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children1.push(item2)
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}
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const item1 = {
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id: startIndex + ketIndex++,
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name: \`name\${index1}\`,
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checked: false,
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indeterminate: false,
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children: children1
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}
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result.push(item1)
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}
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resolve(result)
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}, 300)
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})
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},
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getSelectionEvent () {
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const selectRecords = this.$refs.xVTree.getCheckboxRecords()
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this.$XModal.alert(selectRecords.length)
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}
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}
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}
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`
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]
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}
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},
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created () {
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this.loadData(500)
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},
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mounted () {
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Array.from(this.$el.querySelectorAll('pre code')).forEach((block) => {
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hljs.highlightBlock(block)
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})
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},
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methods: {
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loadData (size) {
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this.loading = true
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this.getTreeList(size).then(data => {
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const startTime = Date.now()
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this.tableData = data
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this.loading = false
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this.$nextTick(() => {
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this.$XModal.message({ message: `渲染 ${size} 行，用时 ${Date.now() - startTime}毫秒`, status: 'info' })
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})
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})
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},
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getTreeList (size) {
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return new Promise(resolve => {
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// 模拟后台生成树结构
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setTimeout(() => {
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const len1 = size / 2
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const len2 = 3
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const len3 = 2
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const len4 = 2
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const len5 = 6
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const result = []
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const startIndex = 10000
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let ketIndex = 0
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for (let index1 = 0; index1 < len1; index1++) {
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if (ketIndex >= size) {
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break
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}
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const children1 = []
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for (let index2 = 0; index2 < len2; index2++) {
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if (ketIndex >= size) {
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break
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}
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const children2 = []
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for (let index3 = 0; index3 < len3; index3++) {
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if (ketIndex >= size) {
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break
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}
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const children3 = []
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for (let index4 = 0; index4 < len4; index4++) {
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if (ketIndex >= size) {
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break
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}
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const children4 = []
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for (let index5 = 0; index5 < len5; index5++) {
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if (ketIndex >= size) {
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break
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}
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const item5 = {
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id: startIndex + ketIndex++,
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name: `name${index1}_${index2}_${index3}_${index4}_${index5}`,
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checked: false,
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indeterminate: false,
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children: []
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}
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children4.push(item5)
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}
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const item4 = {
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id: startIndex + ketIndex++,
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name: `name${index1}_${index2}_${index3}_${index4}`,
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checked: false,
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indeterminate: false,
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children: children4
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}
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children3.push(item4)
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}
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const item3 = {
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id: startIndex + ketIndex++,
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name: `name${index1}_${index2}_${index3}`,
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checked: false,
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indeterminate: false,
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children: children3
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}
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children2.push(item3)
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}
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const item2 = {
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id: startIndex + ketIndex++,
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name: `name${index1}_${index2}`,
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checked: false,
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indeterminate: false,
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children: children2
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}
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children1.push(item2)
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}
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const item1 = {
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id: startIndex + ketIndex++,
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name: `name${index1}`,
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checked: false,
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indeterminate: false,
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children: children1
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}
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result.push(item1)
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}
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resolve(result)
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}, 300)
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})
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},
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getSelectionEvent () {
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const selectRecords = this.$refs.xVTree.getCheckboxRecords()
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this.$XModal.alert(selectRecords.length)
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}
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}
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}
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</script>
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