目录 element table表格相同名称列合并 对table表格相同内容行的合并 element table表格相同名称列合并 template div el-table show-summary :summary-method="getSummaries" :span-method="objectSpanMethod" :data="tableDa
目录
- element table表格相同名称列合并
- 对table表格相同内容行的合并
element table表格相同名称列合并
<template> <div> <el-table show-summary :summary-method="getSummaries" :span-method="objectSpanMethod" :data="tableData" row-key="id" ref="tableDom" border> <el-table-column label="序号" width="55" align="center"> <template slot-scope="scope">{{ scope.$index + 1 }}</template> </el-table-column> <el-table-column prop="name" label="分类" align="center"></el-table-column> <el-table-column prop="num1" label="数量1" align="center"></el-table-column> <el-table-column prop="num2" label="数量2" align="center"></el-table-column> <el-table-column prop="num3" label="数量3" align="center"></el-table-column> <el-table-column prop="type" label="类型" align="center"></el-table-column> <el-table-column prop="num4" label="数量4" align="center"></el-table-column> <el-table-column prop="num5" label="数量5" align="center"></el-table-column> </el-table> </div> </template> <script> export default { name: '', components: {}, props: {}, data() { return { tableData: [{ name: '名称1', num1: '2', num2: '3', num3: '4', num4: '连续', num5: '6', num6: '7', }, { name: '名称2', num1: '2', num2: '3', num3: '4', num4: '连续', num5: '6', num6: '7', }, { name: '名称2', num1: '2', num2: '3', num3: '4', num4: '连续', num5: '6', num6: '7', }, { name: '名称3', num1: '2', num2: '3', num3: '4', num4: '连续', num5: '6', num6: '7', }, { name: '名称4', num1: '2', num2: '3', num3: '4', num4: '连续', num5: '6', num6: '7', }, { name: '名称4', num1: '2', num2: '3', num3: '4', num4: '连续', num5: '6', num6: '7', }] } }, filters: {}, computed: {}, watch: {}, created() {}, mounted() {}, beforeDestroy() {}, methods: { // 合计 getSummaries (param) { const { columns, data } = param const sums = [] columns.forEach((column, index) => { if (index === 0) { sums[index] = '合计' } else if (index === 2 || index === 7) { const values = data.map(item => Number(item[column.property])) if (!values.every(value => isNaN(value))) { sums[index] = values.reduce((prev, curr) => { const value = Number(curr) if (!isNaN(value)) { return prev + curr } else { return prev } }, 0) } else { sums[index] = '' } } else { sums[index] = '' } }) return sums }, // table合并列 objectSpanMethod({ row, column, rowIndex, columnIndex }) { let data = this.tableData; //拿到当前table中数据 let cellValue = row[column.property]; //当前位置的值 let noSortArr = ['num1', 'num2', 'num3', 'num4', 'num5', 'num6']; //不需要合并的字段(不进行合并行的prop) if (cellValue && !noSortArr.includes(column.property)) { let prevRow = data[rowIndex - 1]; //获取到上一条数据 let nextRow = data[rowIndex + 1]; //下一条数据 if (prevRow && prevRow[column.property] === cellValue) { //当有上一条数据,并且和当前值相等时 return { rowspan: 0, colspan: 0 }; } else { let countRowspan = 1; while (nextRow && nextRow[column.property] === cellValue) { //当有下一条数据并且和当前值相等时,获取新的下一条 nextRow = data[++countRowspan + rowIndex]; } if (countRowspan > 1) { return { rowspan: countRowspan, colspan: 1 }; } } } }, } } </script> <style scoped lang="less"> </style>
对table表格相同内容行的合并
在vue开发中会有对表格的操作,有时因为需要遍历的情况不同,对于数据相同行处理时,使用element的table不太好实现,还是使用html的table标签!
而此时,对于相同数据行,使用rowspan进行合并则无法更好的遍历数据,比如我们要实现这样的表格
数据格式一看,使用遍历的话会更好实现,这个时候表格是这样的
这个时候可以使用方法获取相同内容行,对其进行处理,方法如下
mergeTable() { //table表合并相同内容的行 var tab = document.getElementById("subtable"); var maxCol = 3, val, count, start; // var ys = ""; for (var col = maxCol - 1; col >= 0 ; col--) { count = 1; val = ""; for (var i = 0; i < tab.rows.length; i++) { if (val == tab.rows[i].cells[col].innerHTML) { count++; } else { if (count > 1) { //合并 start = i - count; tab.rows[start].cells[col].rowSpan = count; for (var j = start + 1; j < i; j++) { // tab.rows[j].cells[col].style.display = "none"; tab.rows[j].removeChild(tab.rows[j].cells[col]); } count = 1; } val = tab.rows[i].cells[col].innerHTML; } } if (count > 1) { //合并,最后几行相同的情况下 start = i - count; tab.rows[start].cells[col].rowSpan = count; for (var j = start + 1; j < i; j++) { tab.rows[j].removeChild(tab.rows[j].cells[col]); } } } }
然后在生命周期函数这调用该方法即可实现对相同内容行的合并操作!
以上为个人经验,希望能给大家一个参考,也希望大家多多支持易盾网络。