el-table 多选改成单选

 

<template>
  <el-table
    ref="multipleTableRef"
    :data="tableData"
    style="width: 100%"
    @select="handleSelectionChange"
    class="m-table"
  >
    <el-table-column type="selection" width="55" />
    <el-table-column label="Date" width="120">
      <template #default="scope">{{ scope.row.date }}</template>
    </el-table-column>
    <el-table-column property="name" label="Name" width="120" />
    <el-table-column property="address" label="Address" />
  </el-table>
</template>

<script lang="ts" setup>
import { ref, onMounted, toRaw } from 'vue'
import type { TableInstance } from 'element-plus'

interface User {
  id: number
  date: string
  name: string
  address: string
}

const multipleTableRef = ref<TableInstance>()
const multipleSelection = ref<User[]>([])

const handleSelectionChange = (val: User[]) => {
  multipleSelection.value = val
  console.log(val)
  multipleTableRef.value!.clearSelection()
  if (Array.isArray(val) && val.length > 0) {
    multipleTableRef.value!.toggleRowSelection(toRaw(val[val.length - 1]), true)
  }
}

const tableData: User[] = [
  {
    id: 1,
    date: '2016-05-03',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles'
  },
  {
    id: 2,
    date: '2016-05-02',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles'
  },
  {
    id: 3,
    date: '2016-05-04',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles'
  },
  {
    id: 4,
    date: '2016-05-01',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles'
  },
  {
    id: 5,
    date: '2016-05-08',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles'
  },
  {
    id: 6,
    date: '2016-05-06',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles'
  },
  {
    id: 7,
    date: '2016-05-07',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles'
  }
]

onMounted(() => {
  multipleTableRef.value!.clearSelection()

  // multipleTableRef.value!.toggleRowSelection(tableData[0], true)
})
</script>

<style scoped>
.m-table :deep .el-table__header .el-checkbox {
  display: none;
}
</style>

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原文地址：https://blog.csdn.net/xutongbao/article/details/143943140

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