element-plus/docs/examples/table/summary.vue
C.Y.Kun 575835a2f8
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2021-12-21 15:51:33 +08:00

106 lines
2.3 KiB
Vue

<template>
<el-table :data="tableData" border show-summary 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"
border
height="200"
:summary-method="getSummaries"
show-summary
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="Cost 1 ($)" />
<el-table-column prop="amount2" label="Cost 2 ($)" />
<el-table-column prop="amount3" label="Cost 3 ($)" />
</el-table>
</template>
<script lang="ts" setup>
import type { TableColumnCtx } from 'element-plus/es/components/table/src/table-column/defaults'
interface Product {
id: string
name: string
amount1: string
amount2: string
amount3: number
}
interface SummaryMethodProps<T = Product> {
columns: TableColumnCtx<T>[]
data: T[]
}
const getSummaries = (param: SummaryMethodProps) => {
const { columns, data } = param
const sums: string[] = []
columns.forEach((column, index) => {
if (index === 0) {
sums[index] = 'Total Cost'
return
}
const values = data.map((item) => Number(item[column.property]))
if (!values.every((value) => isNaN(value))) {
sums[index] = `$ ${values.reduce((prev, curr) => {
const value = Number(curr)
if (!isNaN(value)) {
return prev + curr
} else {
return prev
}
}, 0)}`
} else {
sums[index] = 'N/A'
}
})
return sums
}
const tableData: Product[] = [
{
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>