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基于Vue2+elementUi实现树形横向合并 table不规则表格

news 2025/8/29 7:28:57

1、实现效果

共N行，但是每一列对应的单元格列数固定，行数不固定
在这里插入图片描述

2、实现方式

说明：使用的是vue2 + elementUI表格组件 + js实现

 <template><div class="table-container" ><el-table  height="100%" :span-method="spanMethod" :data="tableTemData" :cell-style="cellStyle" border :show-header="false"><el-table-column align="center" prop="name" label="" /><el-table-column align="center" prop="name2" label="时间" /><el-table-column align="center" prop="name3" label="" /><el-table-column align="center" prop="name4" label="8:00" /></el-table></div></template><script>export default {data() {return {//所需数据格式tableData: [{ name: '集控中心', name2: '器器器1', name3: '电压A', name4: '8:00', name5: '1111', rowspan_0: 11, rowspan_1: 4,rowspan_2: 1 },{ name: '集控中心', name2: '器器器1', name3: '电压B', name4: '8:00', name5: '1111', rowspan_0: 0, rowspan_1: 0, rowspan_2: 1 },{ name: '集控中心', name2: '器器器1', name3: '电压C', name4: '8:00', name5: '1111', rowspan_0: 0, rowspan_1: 0, rowspan_2: 1 },{ name: '集控中心', name2: '器器器1', name3: '电压D', name4: '8:00', name5: '1111', rowspan_0: 0, rowspan_1: 0, rowspan_2: 1 },{ name: '集控中心', name2: '器器器2', name3: '电压E', name4: '8:00', name5: '1111', rowspan_0: 0, rowspan_1: 2, rowspan_2: 1 },{ name: '集控中心', name2: '器器器2', name3: '电压F', name4: '8:00', name5: '1111', rowspan_0: 0, rowspan_1: 0, rowspan_2: 1 },{ name: '集控中心', name2: '器器器3', name3: '电压G', name4: '8:00', name5: '1111', rowspan_0: 0, rowspan_1: 3, rowspan_2: 1 },{ name: '集控中心', name2: '器器器3', name3: '电压H', name4: '8:00', name5: '1111', rowspan_0: 0, rowspan_1: 0, rowspan_2: 1 },{ name: '集控中心', name2: '器器器3', name3: '电压I', name4: '8:00', name5: '1111', rowspan_0: 0, rowspan_1: 0, rowspan_2: 2 },{ name: '集控中心', name2: '器器器4', name3: '电压J', name4: '8:00', name5: '1111', rowspan_0: 0, rowspan_1: 2, rowspan_2: 0 },{ name: '集控中心', name2: '器器器4', name3: '电压K', name4: '8:00', name5: '1111', rowspan_0: 0, rowspan_1: 0, rowspan_2: 1 },],//原数据格式treeData: [{name: '单位B-A',children: [{name2: '视频',children: [{ name3: '0000s', children:[{name4: '5G'},{name4: '有线网'}] }]},{name2: '视频',children: [{ name3: ':0000s',children: [{name4: '5G'},{name4: '有线网'}] },{ name3: ':0000s', children:[{name4: '5G'},{name4: '有线网'}] }]},{name2: '视频3',children: [{ name3: '0000s', children:[{name4: '5G'},{name4: '有线网'}] },{ name3: '8976s', children:[{name4: '5G'},{name4: '有线网'}] }]}]}, {name: '单位A-C',children: [{name2: '5视频1',children: [{ name3: 'xxx', children:[{name4: '5G'},{name4: '有线网'}] }]},{name2: '视频2',children: [{ name3: ':0000s',children: [{name4: '5G'},{name4: '有线网'}] },{ name3: ':0000s', children:[{name4: '5G'},{name4: '有线网'}] }]}]}],count: 0,tableTemData: [],maxArr: []};},mounted() {this.tree_To_table(this.treeData, 0);},methods: {tree_To_table(arr, num) {arr.forEach((item, index) => {//   初始化数量this.count = 0if (item.children) {// 计算所有所有子集数量this.getnum(item.children)item['rowspan_' + num] = this.count//   深复制后删除children，否则可能会造成死循环let itemVar = JSON.parse(JSON.stringify(item))delete itemVar.childrenitem.children.forEach((m, n) => {//   将除第一行之外的重置为0if (n != 0) {for (let o = 0; o <= num; o++) {itemVar['rowspan_' + o] = 0}}// 合并父子级Object.assign(m, itemVar)})this.tree_To_table(item.children, num + 1)} else {item['rowspan_' + num] = 1this.maxArr.push(num)this.tableTemData.push(item)}})},getnum(arr) {arr.forEach((item, index) => {if (item.children) {this.getnum(item.children)} else {this.count += 1}})},spanMethod ({ row, column, rowIndex, columnIndex }) {let index = this.tableTemData.indexOf(row)if (columnIndex < Math.max(...this.maxArr)) {let rowspan = row['rowspan_' + columnIndex]// 这里可以特殊处理：设置第一列横跨所有行// if (rowIndex == 0 && columnIndex == 0) {//    rowspan = this.tableTemData.length// }return {rowspan,colspan: rowspan == 0 ? 0 : 1}}return {rowspan: 1,colspan: 1}},cellStyle({ row, column, rowIndex, columnIndex }) {return {backgroundColor: 'rgba(50, 247, 255, 0.08)'}}}}</script>
<style lang="scss">
.table-container {width: 100%;overflow-x: auto; /* 横向滚动条，如果内容过宽 */
}table {width: 100%;border-collapse: collapse;
}td {border: 1px solid #ccc;padding: 8px;text-align: center;background-color: #f9f9f9;
}
</style>