element-ui tree树形组件自定义实现可展开选择表格

最近做项目遇到一个需求,表格里可以展开,可以选择,大概效果如下图:

一开始是在table组件里找方法,使用了表格的合并方法,效果是实现了,但是表格的多选每次触发时,都会执行好几次,而且没法实现一部分的全选

 

 

 

使用表格的方式也可以勉强实现效果,但是在判断选择时,自己要在处理一下数据,感觉不太好,就找了找element的其他组件.发现了tree树形组件,展示出来的效果是自己想要的

 

 

之后用了tree树形组件,使用了自定义方法,实现效果还能满足需求,就整理了一下,下面把代码贴上来

 

template:

<div class="invoice-list">
      <!-- 表头的值,自己单独写的 -->
      <ul class="invoice-header">
        <li class="invoice-item">发票号</li>
        <li class="invoice-item">订单号</li>
        <li class="invoice-item">发票金额</li>
        <li class="invoice-item">开票日期</li>
        <li class="invoice-item">收款方式</li>
        <li class="invoice-item">状态</li>
        <li class="invoice-item">发票收款日期</li>
        <li class="invoice-item">操作</li>
      </ul>
      <el-tree
        :props="props"
        :data="tableData"
        show-checkbox
        default-expand-all
        ref="treeData"
        @check-change="handleCheckChange">
        <!-- 使用自定义,需要加slot-scope,返回两个值,node是当前节点指定的对象
        data是当前节点的数据 -->
        <div class="custom-tree-node" slot-scope="{ node, data }">
          <div class="total_info_box clearfix" v-if="data.span">
            <span><i>对账单号:</i> {{data.accountNo | isEmptyVal}}</span>
            <span><i>对账金额:</i> {{data.totalReconciledAmount | formatUSD}}</span>
            <span><i>对账日期:</i> {{data.confirmAccountDate | formatYMD}}</span>
          </div>
          <span v-else class="table_info_node">
            <span class="table_info_item">{{data.invoiceNo}}</span>
            <span class="table_info_item">{{data.orderNo}}</span>
            <span class="table_info_item">{{data.totalAmountTax}}</span>
            <span class="table_info_item">{{data.billingDate}}</span>
            <span class="table_info_item">{{data.forCollection}}</span>
            <span class="table_info_item">{{data.requestStatus}}</span>
            <span class="table_info_item">{{data.receiptDate}}</span>
            <span class="table_info_item"><el-button @click="toInvoiceDetail(data)">详情</el-button></span>
          </span>
        </div>
      </el-tree>
    </div>

js部分

data () {
    return {
      props: {
        label: 'accountNo', // 需要指定的节点渲染对象属性
        children: 'orderInvoiceAssemblyList' // 指定的子级
      },
      tableData: [] // tree组件渲染的数据
    }
  },

// 方法集合
  methods: {
    // tree组件渲染的数据列表
    getSupplierPayInvoice () {
      this.tableData = [{
        accountId: 13,
        accountNo: `66`,
        orderNo: '444',
        totalReconciledAmount: 1000,
        confirmAccountDate: 1548482834000,
        span: true,
        orderInvoiceAssemblyList: [{
          invoiceNo: '67448',
          orderNo: '444',
          totalAmountTax: 1999,
          billingDate: 1548482834000,
          forCollection: 999,
          requestStatus: '未付款',
          receiptDate: '2019-1-30',
          accountInvoiceId: 11
        }, {
          orderNo: '55',
          totalAmountTax: 2999,
          billingDate: 1548482834000,
          forCollection: 5555,
          requestStatus: 1,
          accountInvoiceId: 12
        }]
      }, {
        accountId: 14,
        accountNo: '789',
        orderNo: '444',
        totalReconciledAmount: 2000,
        confirmAccountDate: 1548482834000,
        span: true,
        orderInvoiceAssemblyList: [{
          orderNo: '888',
          totalAmountTax: 3999,
          billingDate: 1548482834000,
          forCollection: 999,
          requestStatus: 2,
          accountInvoiceId: 13
        }, {
          orderNo: '999',
          totalAmountTax: 4888,
          billingDate: 1548482834000,
          forCollection: 5555,
          requestStatus: 1,
          accountInvoiceId: 14
        }, {
          orderNo: '889',
          totalAmountTax: 4888,
          billingDate: 1548482834000,
          forCollection: 5555,
          requestStatus: 1,
          accountInvoiceId: 15
        }]
      }]

    },

    // tree组件选择改变事件
    handleCheckChange (val) {
      // console.log(val)
      // 使用getCheckedNodes可以获取当前被选中的节点数据
      let selected = this.$refs.treeData.getCheckedNodes()
      console.log(33, selected)
    }
}