Elementui Table组件实现可拖拽效果

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需要安装插件Sortable.js

yarn add sortablejs --save

说明:如果安装了vuedraggable也可使用,因为vuedraggable本身就是基于sortablejs封装

yarn add vuedraggable -S

注意:element table务必指定row-key,row-key必须是唯一的,如ID,不然会出现排序不对的情况。

完整示例如下

<template>
  <div style="width:800px">
 
    <el-table :data="tableData"
              border
              row-key="id"
              align="left">
      <el-table-column v-for="(item, index) in col"
                       :key="`col_${index}`"
                       :prop="dropCol[index].prop"
                       :label="item.label">
      </el-table-column>
    </el-table>
  </div>
</template>
<script>
  import Sortable from 'sortablejs'
  export default {
    data() {
      return {
        col: [
          {
            label: '日期',
            prop: 'date'
          },
          {
            label: '姓名',
            prop: 'name'
          },
          {
            label: '地址',
            prop: 'address'
          }
        ],
        dropCol: [
          {
            label: '日期',
            prop: 'date'
          },
          {
            label: '姓名',
            prop: 'name'
          },
          {
            label: '地址',
            prop: 'address'
          }
        ],
        tableData: [
          {
            id: '1',
            date: '2016-05-02',
            name: '王小虎1',
            address: '上海市普陀区金沙江路 100 弄'
          },
          {
            id: '2',
            date: '2016-05-04',
            name: '王小虎2',
            address: '上海市普陀区金沙江路 200 弄'
          },
          {
            id: '3',
            date: '2016-05-01',
            name: '王小虎3',
            address: '上海市普陀区金沙江路 300 弄'
          },
          {
            id: '4',
            date: '2016-05-03',
            name: '王小虎4',
            address: '上海市普陀区金沙江路 400 弄'
          }
        ]
      }
    },
    mounted() {
      this.rowDrop()
      this.columnDrop()
    },
    methods: {
      //行拖拽
      rowDrop() {
        const tbody = document.querySelector('.el-table__body-wrapper tbody')
        const _this = this
        Sortable.create(tbody, {
          onEnd({ newIndex, oldIndex }) {
            console.log("拖动了行","当前序号: "+newIndex)
            const currRow = _this.tableData.splice(oldIndex, 1)[0]
            _this.tableData.splice(newIndex, 0, currRow)
          }
        })
      },
      //列拖拽
      columnDrop() {
        const wrapperTr = document.querySelector('.el-table__header-wrapper tr')
        this.sortable = Sortable.create(wrapperTr, {
          animation: 180,
          delay: 0,
          onEnd: evt => {
            console.log("拖动了列")
            const oldItem = this.dropCol[evt.oldIndex]
            this.dropCol.splice(evt.oldIndex, 1)
            this.dropCol.splice(evt.newIndex, 0, oldItem)
          }
        })
      }
    }
  }
</script>