vue element-ui中table合计指定列求和实例

注意点:

1. <el-table> 中 加:summary-method="getSummaries"

2. <el-table-column> 中要加 prop

// 房间号的合计去掉

getSummaries (param) {

const { columns, data } = param

const sums = []

columns.forEach((column, index) => {

if (index === 0) {

sums[index] = '总计'

} else if (index === 5 || index === 6) {

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'

}

} else {

sums[index] = '--'

}

})

return sums

}

效果图

补充知识:vue+elementUI的表格最后一行合计自定义显示

1.在看了elementUI的文档后重要的俩个属性是 show-summary :summary-method="getSummaries" getSummaries这个是自定义方法函数的方法。

HTML的代码:

show-summary :summary-method="getSummaries的属性要加上,还有一个很重要的一点就是要 必须要在el-table-column中必须是prop来传值"

<el-table :key='tableKey' :data="listData" show-summary :summary-method="getSummaries" v-loading="listLoading" border fit highlight-current-row

style="width:100%;margin-top:8px" :header-cell-style="{background:'oldlace'}">>

<el-table-column prop="equipmentType" align="center" label="设备类型" min-width="50">

</el-table-column>

<el-table-column prop="equipmentName" align="center" label="设备名称" min-width="50">

</el-table-column>

<el-table-column prop="equipmentCode" align="center" label="设备编号" min-width="50">

</el-table-column>

<el-table-column prop="openRate" align="center" label="开机率" min-width="50">

</el-table-column>

<el-table-column prop="planWorkTime" align="center" label="计划工作时间" min-width="50">

</el-table-column>

<el-table-column prop="closeTime" align="center" label="关机时间(h)" min-width="50">

</el-table-column>

<el-table-column prop="machiningTime" align="center" label="加工时间(h)" min-width="50">

</el-table-column>

<el-table-column prop="stopTime" align="center" label="停工时间(h)" min-width="50">

</el-table-column>

<el-table-column prop="debugTime" align="center" label="调试时间(h)" min-width="50">

</el-table-column>

<el-table-column align="center" label="查看" min-width="210">

<template slot-scope="scope">

<el-button title="时序图" type="primary" size="mini" @click="profile(scope.row)" v-show="SXTbatshow">时序图</el-button>

<el-button title="状态时长统计图" type="danger" size="mini" @click="cartogram(scope.row)">状态时长统计图</el-button>

<el-button title="状态占比图" type="success" size="mini" @click="diagram(scope.row)">状态占比图</el-button>

</template>

</el-table-column>

</el-table>

在script要写的代码:

// 表格总计的时间

getSummaries(param) {

const { columns, data } = param;

/* console.log(1234)

console.log(param) */

const sums = [];

columns.forEach((column, index) => {

if (index === 0) {

sums[index] = '总计';

return;

}

//this.closeList等等是后台返回的总的数据,然后取值到这里

switch(column.property) {

case "closeTime":

sums[index] = this.closeList + ' h'

break;

case "machiningTime":

sums[index] = this.machiningTimeList + ' h'

break;

case "stopTime":

sums[index] = this.stopTimeList + ' h'

break;

case "debugTime":

sums[index] = this.debugTimeList + ' h'

break;

default:

break;

}

});

return sums;

},

效果图:

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