element ui 中table实现默认勾选(主要用在编辑中)

template

  <div class="dial-header">
            <el-dialog title="选择批次" :visible.sync="Index.BatchEdit">
                <el-table ref="multipleTable" :data="tableDataEdit" tooltip-effect="dark" style="width:100%" @selection-change="handleSelectionChangeEdit">
                    <el-table-column type="selection" prop="id"></el-table-column>
                    <el-table-column prop="id" label="批次ID"></el-table-column>
                    <el-table-column prop="batch_name" label="批次名称"></el-table-column>
                    <el-table-column prop="create_time" label="创建时间"></el-table-column>
                    <el-table-column prop="remain_count" label="剩余条数"></el-table-column>
                </el-table>
                <div slot="footer" class="dialog-footer">
                    <el-button type="primary" @click="saveChangeEdit">确定</el-button>
                </div>
                <div class="pagination">
                        <div class="block"> 
                            <el-pagination
                                @current-change="handleCurrentChangeEdit"
                                :current-page="pag.currentPage"
                                :page-sizes="[10]"
                                :total="pag.total"
                                layout="total, sizes, prev, pager, next, jumper">
                            </el-pagination>
                        </div>
                    </div>
                <el-dialog>
        </div>
       //下面是根据后台返回的数组中的asrcall_id 字段是否为0判断的(主要是setTimeout)
      <script>
          this.tableDataEdit.forEach((row,index)=>{
            if(row.asrcall_id != 0){
                 setTimeout(()=>{  
                     this.batchIds.push(row.id)
                     this.$refs.multipleTable.toggleRowSelection(this.tableDataEdit[index])
                      },1)
                  }
            })
</script>