介绍
1. 官网文档
合并行或列的办法官网文档为：
| 参数 | 阐明 | 类型 | 可选值 | 默认值 |
|---|---|---|---|---|
| span-method | 合并行或列的计算方法 | Function({row, column, rowIndex, columnIndex}) | —— | —— |
通过给 table 传入 span-method 办法能够实现合并行或列，办法的参数是一个对象，四个参数 row、column、rowIndex、columnIndex 别离为以后行、当前列、以后行索引和当前列索引。
2. 两种返回形式
数组：
[1, 2] // 合并 1 行，2 列 对象：
{
rowspan: 3, // 合并 3 行
colspan: 1 // 合并 1 列
}3. 表格渲染程序
从第一行开始，rowIndex 为 0，列从左到右（columnIndex 从 0 到最初一列）；而后第二行，rowIndex 为 1，列从左到右……
4. 置空操作
合并单元格时，零碎会取第一个单元格的值。Element 在操作单元格时，也是取第一个单元格的值，然而不会将第二个单元格的值置空，这就会导致多出的值没有做解决，因而，咱们须要手动解决，定位到被合并的行或者列，将其值置为空，即返回 [0, 0]。
Demo 分享
先展现一下成果
demo1
demo2
Demo1(别离合并行或列）
<!DOCTYPE html>
<html>
<head>
<title>ElementUI 合并行或列 </title>
<meta charset="utf-8">
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://unpkg.com/element-ui@2.14.0/lib/index.js"></script>
<link rel="stylesheet" type="text/css" href="https://unpkg.com/element-ui@2.14.0/lib/theme-chalk/index.css">
</head>
<body>
<div id="app">
<template>
<div>
<p> 合并列 </p>
<el-table :data="tableData" :span-method="arraySpanMethod" border style="width: 100%">
<el-table-column prop="id" label="ID" width="180"></el-table-column>
<el-table-column prop="name" label="姓名"></el-table-column>
<el-table-column prop="amount1" sortable label="数值 1"></el-table-column>
<el-table-column prop="amount2" sortable label="数值 2"></el-table-column>
<el-table-column prop="amount3" sortable label="数值 3"></el-table-column>
</el-table>
<p> 合并行 </p>
<el-table :data="tableData" :span-method="objectSpanMethod" border style="width: 100%; margin-top: 20px">
<el-table-column prop="id" label="ID" width="180"></el-table-column>
<el-table-column prop="name" label="姓名"></el-table-column>
<el-table-column prop="amount1" label="数值 1（元）"></el-table-column>
<el-table-column prop="amount2" label="数值 2（元）"></el-table-column>
<el-table-column prop="amount3" label="数值 3（元）"></el-table-column>
</el-table>
</div>
</template>
</div>
<script type="text/javascript">
var Main = {data() {
return {
tableData: [
{
id: '12987122',
name: '王小虎',
amount1: '234',
amount2: '3.2',
amount3: 10
}, {
id: '12987123',
name: '王小虎',
amount1: '165',
amount2: '4.43',
amount3: 12
}, {
id: '12987124',
name: '王小虎',
amount1: '324',
amount2: '1.9',
amount3: 9
}, {
id: '12987125',
name: '王小虎',
amount1: '621',
amount2: '2.2',
amount3: 17
}, {
id: '12987126',
name: '王小虎',
amount1: '539',
amount2: '4.1',
amount3: 15
}
]
};
},
methods: {arraySpanMethod({ row, column, rowIndex, columnIndex}) {if (rowIndex % 2 === 0) {if (columnIndex === 0) {
// 返回行和列的合并数量, 返回一个数组或对象
// 返回对象
return {
rowspan: 1,
colspan: 3
}
// 返回数组
// return [1, 3];
// 省略第二和第三列数据，避免合并列的原始数据填充到合并单元格后的表格里
} else if (columnIndex === 1 || columnIndex === 2) {return [0, 0];
}
}
},
objectSpanMethod({row, column, rowIndex, columnIndex}) {if (columnIndex === 0) {if (rowIndex % 2 === 0) {
return {
rowspan: 2,
colspan: 1
};
} else {
return {
rowspan: 0,
colspan: 0
};
}
}
}
}
};
var Ctor = Vue.extend(Main)
new Ctor().$mount('#app')
</script>
</body>
</html>demo2
<!DOCTYPE html>
<html>
<head>
<title>ElementUI 合并行或列 </title>
<meta charset="utf-8">
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script src="https://unpkg.com/element-ui@2.14.0/lib/index.js"></script>
<link rel="stylesheet" type="text/css" href="https://unpkg.com/element-ui@2.14.0/lib/theme-chalk/index.css">
</head>
<body>
<div id="app">
<template>
<div>
<el-table :data="tableData" :span-method="arraySpanMethod" border style="width: 100%">
<el-table-column prop="date" label="日期" width="150"></el-table-column>
<el-table-column label="配送信息">
<el-table-column prop="name" label="姓名" width="120"></el-table-column>
<el-table-column label="地址">
<el-table-column prop="province" label="省份"></el-table-column>
<el-table-column prop="city" label="市区"></el-table-column>
<el-table-column prop="address" label="地址"></el-table-column>
<el-table-column prop="zip" label="邮编"></el-table-column>
</el-table-column>
</el-table-column>
</el-table>
<div>
</template>
</div>
<script type="text/javascript">
var combineArr = [];
var Main = {data() {
return {
tableData: [{
date: '2016-05-01',
name: '王小虎',
province: '上海',
city: '普陀区 0',
address: '上海市普陀区金沙江路 1518 弄',
zip: 500
}, {
date: '2016-05-02',
name: '王小虎',
province: '上海',
city: '普陀区 1',
address: '上海市普陀区金沙江路 1519 弄',
zip: 300
},{
date: '2016-05-02',
name: '王小虎',
province: '上海',
city: '普陀区 1',
address: '上海市普陀区金沙江路 1520 弄',
zip: 200
}, {
date: '2016-05-02',
name: '王小虎',
province: '上海',
city: '普陀区 1',
address: '上海市普陀区金沙江路 1521 弄',
zip: 100
}, {
date: '2016-05-03',
name: '王小虎',
province: '上海',
city: '普陀区 2',
address: '上海市普陀区金沙江路 1522 弄',
zip: 100
}, {
date: '2016-05-04',
name: '王小虎',
province: '上海',
city: '普陀区 3',
address: '上海市普陀区金沙江路 1523 弄',
zip: 100
}, {
date: '2016-05-04',
name: '王小虎',
province: '上海',
city: '普陀区 3',
address: '上海市普陀区金沙江路 1524 弄',
zip: 200
}, {
date: '2016-05-05',
name: '王小虎',
province: '上海',
city: '普陀区 4',
address: '上海市普陀区金沙江路 1525 弄',
zip: 300
}]
};
},
methods: {flitterData(arr) {let spanOneArr = []
let concatOne = 0
arr.forEach(function(item,index) {if (index === 0) {spanOneArr.push(1);
} else {if(item.date === arr[index - 1].date) { // 第一列需合并雷同内容的判断条件
spanOneArr[concatOne] += 1;
spanOneArr.push(0);
} else {spanOneArr.push(1);
concatOne = index;
};
}
});
return {one: spanOneArr,}
},
arraySpanMethod({row, column, rowIndex, columnIndex}) {if (rowIndex === 0) {if (columnIndex === 0) {return [1, 6];
}
if (columnIndex < 6) {return [0, 0];
}
} else {if (columnIndex === 0) {const _row = (this.flitterData(this.tableData).one)[rowIndex];
const _col = _row > 0 ? 1 : 0;
combineArr = [_row, _col];
return combineArr;
} else if (columnIndex === 3 || columnIndex === 5) {return combineArr;}
}
}
}
};
var Ctor = Vue.extend(Main)
new Ctor().$mount('#app')
</script>
</body>
</html>