本文实例为大家分享了vue+element UI实现树形表格的具体代码，供大家参考，具体内容如下
一、在component文件夹下新建如下treeTable文件夹，里面有2个文件：
eval.js:将数据转换成树形数据
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/*** @Author: jianglei* @Date: 2017-10-12 12:06:49*/'use strict'import Vue from 'vue'export default function treeToArray(data, expandAll, parent = null, level = null) { let tmp = [] Array.from(data).forEach(function(record) { if (record._expanded === undefined) { Vue.set(record, '_expanded', expandAll) } let _level = 1 if (level !== undefined && level !== null) { _level = level + 1 } Vue.set(record, '_level', _level) // 如果有父元素 if (parent) { Vue.set(record, 'parent', parent) } tmp.push(record) if (record.children && record.children.length > 0) { const children = treeToArray(record.children, expandAll, record, _level) tmp = tmp.concat(children) } }) return tmp} |
index.vue:树形表格组件
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<template> <el-table :data="formatData" :row-style="showRow" v-bind="$attrs"> <el-table-column v-if="columns.length===0" width="150"> <template slot-scope="scope"> <span v-for="space in scope.row._level" :key="space" class="ms-tree-space"/> <span v-if="iconShow(0,scope.row)" class="tree-ctrl" @click="toggleExpanded(scope.$index)"> <i v-if="!scope.row._expanded" class="el-icon-plus"/> <i v-else class="el-icon-minus"/> </span> {{ scope.$index }} </template> </el-table-column> <el-table-column v-for="(column, index) in columns" v-else :key="column.value" :label="column.text" :width="column.width"> <template slot-scope="scope"> <!-- Todo --> <!-- eslint-disable-next-line vue/no-confusing-v-for-v-if --> <span v-for="space in scope.row._level" v-if="index === 0" :key="space" class="ms-tree-space"/> <span v-if="iconShow(index,scope.row)" class="tree-ctrl" @click="toggleExpanded(scope.$index)"> <i v-if="!scope.row._expanded" class="el-icon-plus"/> <i v-else class="el-icon-minus"/> </span> {{ scope.row[column.value] }} </template> </el-table-column> <slot/> </el-table></template> <script>/** Auth: Lei.j1ang Created: 2018/1/19-13:59*/import treeToArray from "./eval";export default { name: "TreeTable", props: { /* eslint-disable */ data: { type: [Array, Object], required: true }, columns: { type: Array, default: () => [] }, evalFunc: Function, evalArgs: Array, expandAll: { type: Boolean, default: false } }, computed: { // 格式化数据源 formatData: function() { let tmp; if (!Array.isArray(this.data)) { tmp = [this.data]; } else { tmp = this.data; } const func = this.evalFunc || treeToArray; const args = this.evalArgs ? Array.concat([tmp, this.expandAll], this.evalArgs) : [tmp, this.expandAll]; return func.apply(null, args); } }, methods: { showRow: function(row) { const show = row.row.parent ? row.row.parent._expanded && row.row.parent._show : true; row.row._show = show; return show ? "animation:treeTableShow 1s;-webkit-animation:treeTableShow 1s;" : "display:none;"; }, // 切换下级是否展开 toggleExpanded: function(trIndex) { const record = this.formatData[trIndex]; record._expanded = !record._expanded; }, // 图标显示 iconShow(index, record) { return index === 0 && record.children && record.children.length > 0; } }};</script><style rel="stylesheet/css">@keyframes treeTableShow { from { opacity: 0; } to { opacity: 1; }}@-webkit-keyframes treeTableShow { from { opacity: 0; } to { opacity: 1; }}</style> <style scoped>.ms-tree-space { position: relative; top: 1px; display: inline-block; font-style: normal; font-weight: 400; line-height: 1; width: 18px; height: 14px;}.ms-tree-space::before { content: "";}.processContainer { width: 100%; height: 100%;}table td { line-height: 26px;}.tree-ctrl { position: relative; cursor: pointer; color: #2196f3; margin-left: -18px;}</style> |
二、在需要的地方引入该组件
例如：在component文件夹下新建a.vue:
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<tree-table :data="data" :columns="columns" border/>import treeTable from "./TreeTable";components: { treeTable },data() { return { columns: [ { text: "事件", value: "event", width: 200 }, { text: "ID", value: "id" }, { text: "时间线", value: "timeLine" }, { text: "备注", value: "comment" } ], data: [ { id: 0, event: "事件1", timeLine: 50, comment: "无" }, { id: 1, event: "事件1", timeLine: 100, comment: "无", children: [ { id: 2, event: "事件2", timeLine: 10, comment: "无" }, { id: 3, event: "事件3", timeLine: 90, comment: "无", children: [ { id: 4, event: "事件4", timeLine: 5, comment: "无" }, { id: 5, event: "事件5", timeLine: 10, comment: "无" }, { id: 6, event: "事件6", timeLine: 75, comment: "无", children: [ { id: 7, event: "事件7", timeLine: 50, comment: "无", children: [ { id: 71, event: "事件71", timeLine: 25, comment: "xx" }, { id: 72, event: "事件72", timeLine: 5, comment: "xx" }, { id: 73, event: "事件73", timeLine: 20, comment: "xx" } ] }, { id: 8, event: "事件8", timeLine: 25, comment: "无" } ] } ] } ] } ] }; }, |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/weixin_43278947/article/details/84401386
