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elementPuls 表格反選實現(xiàn)示例代碼

更新時間：2024年07月25日 11:12:26 作者：Oneself_lsl

這篇文章主要介紹了elementPuls 表格反選實現(xiàn)示例代碼,本文通過示例代碼給大家介紹的非常詳細,對大家的學(xué)習(xí)或工作具有一定的參考借鑒價值,需要的朋友參考下吧

真的在網(wǎng)上搜了很多資料發(fā)現(xiàn)根本實現(xiàn)不了反選 最下面有示例
然后去看了下官網(wǎng)
發(fā)現(xiàn)官網(wǎng)有教你怎么選中某個值的方法官網(wǎng)中的”多選“
官網(wǎng)地址

<template>
  <el-table
    ref="multipleTableRef"
    :data="tableData"
    style="width: 100%"
    @selection-change="handleSelectionChange"
  >
    <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>
  <div style="margin-top: 20px">
    <el-button @click="toggleSelection([tableData[1], tableData[2]])">
      Toggle selection status of second and third rows
    </el-button>
    <el-button @click="toggleSelection()">Clear selection</el-button>
  </div>
</template>
<script lang="ts" setup>
import { ref } from 'vue'
import { ElTable } from 'element-plus'
interface User {
  date: string
  name: string
  address: string
}
const multipleTableRef = ref<InstanceType<typeof ElTable>>()
const multipleSelection = ref<User[]>([])
const toggleSelection = (rows?: User[]) => {
  if (rows) {
    rows.forEach((row) => {
      // TODO: improvement typing when refactor table
      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
      // @ts-expect-error
      multipleTableRef.value!.toggleRowSelection(row, undefined)
    })
  } else {
    multipleTableRef.value!.clearSelection()
  }
}
const handleSelectionChange = (val: User[]) => {
  multipleSelection.value = val
}
const tableData: User[] = [
  {
    date: '2016-05-03',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
  {
    date: '2016-05-02',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
  {
    date: '2016-05-04',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
  {
    date: '2016-05-01',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
  {
    date: '2016-05-08',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
  {
    date: '2016-05-06',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
  {
    date: '2016-05-07',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
]
</script>

既然官網(wǎng)有辦法選中某個值
那反選是不是簡單了很多
以下是個人代碼
第一步獲取已選中的值和未選中的值

<el-table
    ref="multipleTableRef"
    :data="tableData"
    style="width: 100%"
    綁定切換選中時候的數(shù)據(jù)
    @selection-change="handleSelectionChange"
  >
  </el-table>
  <div @click="invertSelection(state.noCheckList)"
      style="width: 114rem;height: 35rem;border: 1rem solid #9D9D9D;border-radius: 10rem;font-size: 15rem;color: #5C6170;display: flex;align-items: center;margin: 0 20rem;cursor: pointer;">
      <img style="height: 15rem;margin: 0 10rem 0 15rem;" src="../../../assets/選擇-反向選擇@2x.png"
          alt="" srcset="">
      <span>反向選擇</span>
  </div>
<script setup>
let state = reactive({
		peopleList:[],//總數(shù)據(jù)
	    checkList: [],//選中數(shù)據(jù)數(shù)組
    	noCheckList:[],//未選中數(shù)據(jù)數(shù)組
})
// 重要 獲取選中未選中數(shù)據(jù)
const handleSelectionChange = (val) => {
    console.log(val);
    state.checkList = val
    const notIncludedArray = state.peopleList.filter(item => !val.includes(item));
    state.noCheckList = notIncludedArray
    // console.log(notIncludedArray);
}
const multipleTableRef= ref() // 多選table
const invertSelection = (rows) => {
    // rows  需要選中的數(shù)據(jù)  直接傳進 state.noCheckList 即可
    multipleTableRef.value.clearSelection()  //需要先全部取消選中  再去選中剛剛未選中的數(shù)據(jù)即可
    if (rows) {
    rows.forEach((row) => {
      multipleTableRef.value.toggleRowSelection(row, undefined)
    })
  } else {
    multipleTableRef.value.clearSelection()
  }
}
</script>

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