4dkankan-components/docs/examples-bk/table/rowspan-and-colspan.vue

<template>
    <div>
        <el-table :data="tableData" :span-method="arraySpanMethod" border style="width: 100%">
            <el-table-column prop="id" label="ID" width="180" />
            <el-table-column prop="name" label="Name" />
            <el-table-column prop="amount1" sortable label="Amount 1" />
            <el-table-column prop="amount2" sortable label="Amount 2" />
            <el-table-column prop="amount3" sortable label="Amount 3" />
        </el-table>

        <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 prop="name" label="Name" />
            <el-table-column prop="amount1" label="Amount 1" />
            <el-table-column prop="amount2" label="Amount 2" />
            <el-table-column prop="amount3" label="Amount 3" />
        </el-table>
    </div>
</template>

<script lang="ts" setup>
import type { TableColumnCtx } from 'element-plus/es/components/table/src/table-column/defaults'

interface User {
    id: string
    name: string
    amount1: string
    amount2: string
    amount3: number
}

interface SpanMethodProps {
    row: User
    column: TableColumnCtx<User>
    rowIndex: number
    columnIndex: number
}

const arraySpanMethod = ({ row, column, rowIndex, columnIndex }: SpanMethodProps) => {
    if (rowIndex % 2 === 0) {
        if (columnIndex === 0) {
            return [1, 2]
        } else if (columnIndex === 1) {
            return [0, 0]
        }
    }
}

const objectSpanMethod = ({ row, column, rowIndex, columnIndex }: SpanMethodProps) => {
    if (columnIndex === 0) {
        if (rowIndex % 2 === 0) {
            return {
                rowspan: 2,
                colspan: 1,
            }
        } else {
            return {
                rowspan: 0,
                colspan: 0,
            }
        }
    }
}

const tableData: User[] = [
    {
        id: '12987122',
        name: 'Tom',
        amount1: '234',
        amount2: '3.2',
        amount3: 10,
    },
    {
        id: '12987123',
        name: 'Tom',
        amount1: '165',
        amount2: '4.43',
        amount3: 12,
    },
    {
        id: '12987124',
        name: 'Tom',
        amount1: '324',
        amount2: '1.9',
        amount3: 9,
    },
    {
        id: '12987125',
        name: 'Tom',
        amount1: '621',
        amount2: '2.2',
        amount3: 17,
    },
    {
        id: '12987126',
        name: 'Tom',
        amount1: '539',
        amount2: '4.1',
        amount3: 15,
    },
]
</script>