vue动态合并单元格并添加小计合计功能示例

1、效果图

2、后台返回数据格式（平铺式）

3、后台返回数据后，整理所需要展示的属性存储到（items）数组内

var obj = {
    "id": curItems[i].id,
    "feeName": curItems[i].feeName,
    "projectName": curItems[i].projectName,
    "projectDetailsName": curItems[i].projectDetailsName,
    "zbMoney": curItems[i].zbMoney,
    "qyMoney": curItems[i].qyMoney,
    "projectId": curItems[i].projectId,
    "instructions": curItems[i].instructions,
    "contentText": curItems[i].contentText,
    "measureText": curItems[i].measureText
   }
   if (curItems[i].projectDetailsName == '合计:') {
    obj.projectName = curItems[i - 1].projectName
   }
   _self.items.push(obj)
   }

4、调用initData(调用后会删除需要合并的字段内容)

_self.initData()

initData(){
  const that = this;
  let arry = [];
  let itemsCopy = JSON.parse(JSON.stringify(that.items));
  for (let i = 0; i < itemsCopy.length; i++) {
   for (let j = (i + 1); j < itemsCopy.length; j++) {
   for (let h in itemsCopy[i]) {
    for (let k in itemsCopy[j]) {
    if (k == 'feeName' || k == 'projectName' || k == 'projectDetailsName') {
     if (itemsCopy[j][k] != '小计:' && itemsCopy[j][k] != '合计:') {
     if (h === k && itemsCopy[i][h] === itemsCopy[j][k]) {
      delete itemsCopy[j][k]
     }
     }
    }
    }
   }
   }
   arry.push(itemsCopy[i]);
  }
  that.dataT = arry;
  },

4、合并行数的代码

rowSpanF: function (key, val) {
  const that = this;
  let num = 0;
  for (let i in that.items) {
   for (let j in that.items[i]) {
   if (j == 'feeName' || j == 'projectName' || j == 'projectDetailsName') {
    if (key === j && val === that.items[i][j]) {
    if (that.items[i][j] == '小计:' || that.items[i][j] == '合计:') {
     return
    }
    num++;
    }
   }
   }
  }

  if(num==0){
   return 1
  }
  return num;
  },

5、html

代码如下：

<tr v-for="(item,$index) in dataT"> 


   <td
   v-if="key!='id'&&(key=='feeName'||key=='projectName'||key=='projectDetailsName'||key=='zbMoney'||key=='qyMoney'||key=='projectId'||key=='instructions'||key=='contentText'||key=='measureText')"
   v-for="(val,key) in item" :rowspan="rowSpanF(key,val)">
   <span v-if="key=='feeName'">{{val}}</span>
   <span v-if="key=='projectName'">{{val}}</span>
   <span v-if="key=='projectDetailsName'">{{val}}</span>
   <span v-if="key=='zbMoney'">{{val}}</span>
   <span v-if="key=='qyMoney'">{{val}}</span>
   <span v-if="key=='projectId'">{{item['zbMoney']+item['qyMoney']}}</span>
   <span v-if="key=='instructions'">{{val}} </span>
   <span v-if="key=='contentText'">{{val}}</span>
   <span v-if="key=='measureText'">{{val}}</span>
   </td>
   <td>
   <div v-if="item.projectDetailsName!='小计:'&&item.projectDetailsName!='合计:'">
    <!--<span @click="toAdd(allItems[$index])"><a>添加</a></span>-->
    <span @click="toEdit(item)"><a>编辑</a></span>
    <span>
     <a-popconfirm
     title="确定删除吗?"
     okText="确定"
     cancelText="取消"
     @confirm="() => deletArr(item)">
      <a href="javascript:;" rel="external nofollow" >删除</a>
     </a-popconfirm>
    </span>
   </div>
   </td>


  </tr>

注意事项：

后台返回数据必须符合该条件

总结

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