Element-plus官网给出了el-table的固定列用法,适用于数据列数固顶的情况;但是有需求数据不固定,数据的列数是不确定的,这个时候就要用到动态列的el-table。(动态列这个词可能不够准确)
方法一,对某一列用slot的方式拓展,把这一列拓展成多列
<template>
<div>
<el-table :data="tableData">
<el-table-column label="来源" prop="source"></el-table-column>
<el-table-column label="目标" prop="target"></el-table-column>
<el-table-column v-for="(item, index) in tableData[0].zbList" :key="index">
<template #header>
{{ }}
</template>
<template v-slot="{ row }">
{{ [index].value }}
</template>
</el-table-column>
</el-table>
</div>
</template>
<script>
export default {
name:"DynamicColumnTable",
setup() {
const tableData= [{
source: '北京',
target: '上海',
zbList: [{
zb: '指标一',
value: '2000'
},
{
zb: '指标二',
value: '4000'
},
{
zb: '指标三',
value: '6000'
},
]
},
{
source: '北京',
target: '天津',
zbList: [{
zb: '指标一',
value: '20'
},
{
zb: '指标二',
value: '40'
},
{
zb: '指标三',
value: '60'
},
]
},
]
return{
tableData
}
},
}
</script>
方法二,根据数据来动态拓展每一列,根据数据的列数动态生成每一列
<template>
<div>
<el-table ref="table" :data="tableData" stripe style="width: 100%">
<el-table-column v-for="column in columns" :key="" :prop="" :label=""
:min-width="">
</el-table-column>
</el-table>
</div>
</template>
<script>
export default {
name: "DynamicTable",
setup() {
const columns = [
{
prop: 'source',
label: '来源',
minWidth: '100px'
},
{
prop: 'target',
label: '目标',
minWidth: '100px'
},
{
prop: 'value1',
label: 'value1(万)',
minWidth: '150px'
},
{
prop: 'value2',
label: 'value2(亿)',
minWidth: '150px'
},
]
const tableData = [{
source: '北京',
target: '上海',
value1: '189',
value2: '1.89'
}, {
source: '天津',
target: '河北',
value1: '233',
value2: '2.33'
}, {
source: '上海',
target: '陕西',
value1: '97',
value2: '0.97'
}, {
source: '内蒙古',
target: '山东',
value1: '180',
value2: '1.80'
}]
return {
columns,
tableData
}
},
}
</script>