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基于前端VUE+ElementUI实现table行上移或下移功能(支持跨页移动)

作者:斗帝蓝电霸王龙

有时候需要前端实现上移和下移功能,下面这篇文章主要给大家介绍了关于如何基于前端VUE+ElementUI实现table行上移或下移(支持跨页移动)的相关资料,文中通过代码介绍的非常详细,需要的朋友可以参考下

最近在做后台管理遇见了一个这样的需求:table列表需要支持上下移动数据,并且也需要满足跨页移动,前端把数据移动整理之后,提交给后端进行保存(平常这种数据移动都是调用后端的接口,然后在查询数据就可以完成了,但是这次显然不能这么做,因为后端只有一个保存数据的接口,所以这就需要前端自己处理数据了,废话少说,上效果图和源码!

静态效果图

动态效果图

实现源码(HTML)

  <el-table :data="paginatedData">
    <el-table-column label="操作" prop="operate">
      <template slot-scope="scope">
        <el-button-group>
          <el-button
            title="下移"
            :disabled="isDown(scope.row)"
            @click="moveupOrmovedown(scope.row, scope.$index, 'down')"
          >
          </el-button>
          <el-button
            title="上移"
            :disabled="scope.$index === 0 && currentPage === 1"
            @click="moveupOrmovedown(scope.row, scope.$index, 'up')"
          >
          </el-button>
        </el-button-group>
      </template>
    </el-table-column>
  </el-table>
  <!-- 页码参考(此处不涉及该功能的任何逻辑,可忽略 -->
  <el-pagination
     background
     :page-size="pageSize"
     :current-page="currentPage"
     layout="total, prev, pager, next, jumper"
     :total="totalSize"
     @current-change="(val) => (currentPage = val)"
   >
 </el-pagination>

实现源码(JS)

   moveupOrmovedown(row, index, type) {
     let arr = this.filteredData
     const findIndex = this.filteredData.findIndex(
       (item) => item.date === row.date
     )
     index = findIndex > this.pageSize - 1 ? findIndex : index
     type === 'up'
       ? arr.splice(index - 1, 1, ...arr.splice(index, 1, arr[index - 1]))
       : arr.splice(index, 1, ...arr.splice(index + 1, 1, arr[index]))
   }

详情源码(仅展示参数)

<script>
export default {
  data() {
    return {
      totalSize: 0,
      currentPage: 1,
      pageSize: 10,
      filteredData: [],
      paginatedData: [],
      tableData: []
    }
  },
  methods: {
    isDown(row) {
      const findIndex = this.filteredData.findIndex(
        (item) => item.date === row.date
      )
      return findIndex === this.filteredData.length - 1 
    },
    moveupOrmovedown(row, index, type) {
      let arr = this.filteredData
      const findIndex = this.filteredData.findIndex(
        (item) => item.date === row.date
      )
      index = findIndex > this.pageSize - 1 ? findIndex : index
      type === 'up'
        ? arr.splice(index - 1, 1, ...arr.splice(index, 1, arr[index - 1]))
        : arr.splice(index, 1, ...arr.splice(index + 1, 1, arr[index]))
    },
    handleCurrentChange(val) {
      this.currentPage = val
    },
    selectCheckBox(selectCheckBox) {
      const newFilterData = this.filterDataByDate(
        this.tableData,
        selectCheckBox
      )
      this.filteredData = [...this.filteredData, ...newFilterData]
    },
    paginateData(data, pageSize, currentPage) {
      if (data.length < 11) return data
      const startIndex = (currentPage - 1) * pageSize
      const endIndex = startIndex + pageSize
      const dataToShow = data.slice(startIndex, endIndex)
      return dataToShow
    },
    updatePaginatedData() {
      this.totalSize = this.filteredData.length
      // 分页(前端处理)
     // this.paginatedData = this.$util.paginateData(
      this.paginatedData = this.paginateData(
        this.filteredData,
        this.pageSize,
        this.currentPage
      )
    }
  },
  created() {
    // 调后端接口返回的全部数据(后面前端自己分页)
    this.tableData = tableData
  },
  mounted() {},
  watch: {
    currentPage: {
      handler(newPage) {
        this.updatePaginatedData()
      },
      immediate: true,
    },
    filteredData: {
      handler(newArray) {
        this.updatePaginatedData()
      },
      immediate: true,
    }
  },
  computed: {},
  filters: {}
}
</script>

总结 

到此这篇关于前端VUE+ElementUI实现table行上移或下移功能的文章就介绍到这了,更多相关VUE+ElementUI实现table行上移或下移内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家!

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