1、需求分析

ElementUI中的el-table中实现动态添加一行、删除一行、清空所有行

2、代码实现

HTML

<div class="middle-wrapper">
 <el-button
    type="primary"
    icon="el-icon-plus"
    size="mini"
    @click="handleAddDetails"
  >
    添加
  </el-button>
  <el-button
    type="success"
    icon="el-icon-delete"
    size="mini"
    @click="handleDeleteDetails"
  >
    删除
  </el-button>
  <el-button
    type="danger"
    icon="el-icon-delete"
    size="mini"
    @click="handleDeleteAllDetails"
  >
    清空
  </el-button>
</div>
<div class="bottom-wrapper">
  <el-table
    :data="outData2"
    ref="timePeriodRef"
    :row-class-name="rowClassName"
    @selection-change="handleDetailSelectionChange"
    :header-cell-style="{ 'text-align': 'center' }"
    :cell-style="{ 'text-align': 'center' }"
    border
    @close="handleClose"
  >
    <el-table-column type="selection"></el-table-column>
    <el-table-column
      label="序号"
      prop="idx"
      width="50"
    ></el-table-column>
    <el-table-column prop="beginTime" label="起始时间">
      <template slot-scope="scope">
        <el-time-select
          v-model="scope.row.beginTime"
          :picker-options="{
            start: '00:00',
            step: '00:15',
            end: '24:00',
          }"
          placeholder="选择时间"
        ></el-time-select>
      </template>
    </el-table-column>
    <el-table-column prop="endTime" label="结束时间">
      <template slot-scope="scope">
        <el-time-select
          v-model="scope.row.endTime"
          :picker-options="{
            start: '00:00',
            step: '00:15',
            end: '24:00',
          }"
          placeholder="选择时间"
        ></el-time-select>
      </template>
    </el-table-column>
    <el-table-column prop="status" label="充放电类型">
      <template slot-scope="scope">
        <el-select v-model="scope.row.status" placeholder="请选择">
          <el-option
            v-for="item in statusOptions"
            :key="item.value"
            :label="item.label"
            :value="item.value"
          ></el-option>
        </el-select>
      </template>
    </el-table-column>
    <el-table-column prop="power" label="功率(KW)">
      <template slot-scope="scope">
        <el-input v-model="scope.row.power"></el-input>
      </template>
    </el-table-column>
  </el-table>
</div>

data

data(){
	return {
		outData2: [],
		//选中的从表数据
        checkedDetail: [],
	}
}

methods

methods:{
	rowClassName({ row, rowIndex }) {
        row.idx = rowIndex + 1
    },
    handleDetailSelectionChange(selection) {
      if (selection.length > 1) {
        this.$refs.timePeriodRef.clearSelection()
        this.$refs.timePeriodRef.toggleRowSelection(selection.pop())
      } else {
        this.checkedDetail = selection
      }
    },
    handleAddDetails() {
      if (this.outData2 == undefined) {
        this.outData2 = new Array()
      }
      let obj = {}
      obj.beginTime = ''
      obj.endTime = ''
      obj.status = null
      obj.power = ''
      this.outData2.push(obj)
    },
    handleDeleteDetails() {
      if (this.checkedDetail.length == 0) {
        this.$alert('请先选择要删除的数据', '提示', {
          confirmButtonText: '确定',
        })
      } else {
        this.outData2.splice(this.checkedDetail[0].idx - 1, 1)
      }
    },
    handleDeleteAllDetails() {
      this.outData2 = []
    },
}