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Form 元件提供了表單驗證的功能，只需要通過 rules 屬性傳入約定的驗證規則，並將 Form-Item 的 prop 屬性設定為需校驗的欄位名即可。

表單

el-form表單必備以下三個屬性：

:model="ruleForm" 繫結的資料內容

:rules="rules" 動態繫結的rules，表單驗證規則

ref="ruleForm" 繫結的物件

template模組

其實問題關鍵就在於如何給el-form-item動態繫結prop

:prop="'tableData.' + scope.$index + '.欄位名'"

<template>
 <div class="TestWorld">
  <el-button @click="addLine">新增行數</el-button>
  <el-button @click="save('formDom')">baocun</el-button>
  <el-form :rules="formData.rules" :model="formData" ref="formDom" class="demo-ruleForm">
  <el-table
   :data="formData.tableData"
   style="width: 100%">
   <el-table-column prop="bookname" label="書名">
    <template slot-scope="scope">
    <el-form-item :prop="'tableData.' + scope.$index + '.bookname'" :rules='formData.rules.name'>
     <el-input v-model="scope.row.bookname" placeholder="書名" ></el-input>
    </el-form-item>
    </template>
   </el-table-column>
   <el-table-column prop="bookvolume" label="冊數">
    <template slot-scope="scope">
     <el-form-item :prop="'tableData.' + scope.$index + '.bookvolume'" :rules="formData.rules.volume1">
     <el-input v-model.number="scope.row.bookvolume" placeholder="冊數"></el-input>
     </el-form-item>
    </template>
   </el-table-column>
   <el-table-column prop="bookbuyer" label="購買者">
    <template slot-scope="scope">
     <el-form-item :prop="'tableData.' + scope.$index + '.bookbuyer'" :rules='formData.rules.name'>
     <el-input v-model="scope.row.bookbuyer" placeholder="購買者"></el-input>
     </el-form-item>
    </template>
   </el-table-column>
   <el-table-column prop="bookborrower" label="借閱者">
    <template slot-scope="scope">
    <el-form-item :prop="'tableData.' + scope.$index + '.bookborrower'" :rules='formData.rules.name'>
     <el-input v-model="scope.row.bookborrower" placeholder="借閱者"></el-input>
    </el-form-item>
    </template>
   </el-table-column>
   <el-table-column prop="bookbuytime" label="購買日期">
    <template slot-scope="scope">
    <el-form-item :prop="'tableData.' + scope.$index + '.bookbuytime'" :rules='formData.rules.data1'>
     <el-date-picker
     v-model="scope.row.bookbuytime"
     type="date"
     placeholder="購買日期">
     </el-date-picker>
    </el-form-item>
    </template>
   </el-table-column>
   <el-table-column label="操作">
    <template slot-scope="scope">
    <el-button
     size="mini"
     type="danger"
     v-if="!scope.row.editing"
     icon="el-icon-delete"
     @click="handleDelete(scope.$index,scope.row)">刪除
    </el-button>
    </template>
   </el-table-column>
  </el-table>
  </el-form>
 </div>
</template>

vuejs 程式碼

export default {
 name:'TestWorld',data() {
  return {
    formData:{
     rules:{
     name:{ 
       type:"string",required:true,message:"必填欄位",trigger:"blur"
       },volume1:{ 
        type:"number",message:"冊數必須為數字值",trigger:"change"
       },data1:{ 
       type:"date",message:"請選擇日期",trigger:"change"
       }
     },tableData:[{
     bookname: '',bookbuytime: '',bookbuyer: '',bookborrower: '',bookvolume:''
     }]
    }
  }
 },methods:{
  addLine(){ //新增行數
   var newValue = {
     bookname: '',bookvolume:''
    };
   //新增新的行數
   this.formData.tableData.push(newValue);
  },handleDelete(index){ //刪除行數
   this.formData.tableData.splice(index,1)
  },save(formName){ //儲存
   this.$refs[formName].validate((valid,model) => {
    console.log(valid)
    console.log(JSON.stringify(model))
   if (valid) {
    alert('submit!');
   } else {
    console.log('error submit!!');
    return false;
   }
 
   });
  },handleDelete(index){ //刪除行數
   console.log(index)
   this.formData.tableData.splice(index,1)
  }
 }
 
}

補充知識：element-ui 跟form 和table 動態表單校驗，陣列的深層次校驗

首先資料結構是這樣的

 let cchiCombineBill = [
   {
    infoId: '1716',clinicCchiCombineName: '星期四',clinicCchiCombineId: '3',serviceCount: '1',cchis: [
     {
      cchiCode: 'CAAJ1000'
     },{
      cchiCode: 'CAAJ1400'
     }
    ]
   },{
    infoId: '1816',clinicCchiCombineName: '星期五',{
      cchiCode: 'CAAJ1400'
     }
    ]
   }
  ]

<template>
 <div class="bill-wrapper">
  <p class="title-p">費用調整</p>
  <el-divider />
  <el-form ref="mainForm" :model="fromData" class="form-new">
   <section class="pay-section">
    <p class="pay-p">
     <span class="pay-span">醫療服務操作</span>
    </p>
    <div>
     <section v-for="(item,index) in fromData.cchiCombineBill" :key="index">
      <p class="tip-p">
       {{ item.clinicCchiCombineName }}
       <span class="tip-span">（服務數量：{{ item.serviceCount }}）</span>
      </p>
      <el-table :data="item.cchis" border style="width: 100%;">
       <el-table-column prop="cchiCode" label="CCHI 編碼" min-width="100" />
       <el-table-column label="調整後支付價格" min-width="160">
        <template slot-scope="scope">
         <el-form-item
          :prop="`cchiCombineBill.${index}.cchis.${scope.$index}.adjustPaymentPrice`"
          :rules="fromData.fromaDataRules.adjustPaymentPrice"
         >
          <el-input v-model="scope.row.adjustPaymentPrice" placeholder="請輸入" />
         </el-form-item>
        </template>
       </el-table-column>
      </el-table>
     </section>
    </div>
   </section>
  </el-form>
  <p class="new-p">
   <!-- <el-button type="primary" class="btn" @click="returnFn">返回</el-button> -->
   <el-button type="primary" class="btn" @click="sureFn">儲存</el-button>
  </p>
 </div>
</template>
<script>
import { numFixTwo } from '@/utils/tool/regExp'
export default {
 data() {
  const validateNumFixTwo = (rule,value,callback) => {
   if (numFixTwo(value)) {
    callback()
   } else {
    callback(new Error('數字，保留小數點後兩位'))
   }
  }
  return {
   fromData: {
    cchiCombineBill: [],fromaDataRules: {
     adjustPaymentPrice: [
      { required: true,message: '請輸入調整後價格',trigger: 'change' },{ required: true,trigger: 'change',validator: validateNumFixTwo }
     ]
    }
   }
  }
 },created() {
  let cchiCombineBill = [
   {
    infoId: '1716',{
      cchiCode: 'CAAJ1400'
     }
    ]
   }
  ]
  cchiCombineBill.map(item => {
   let cchis = []
   item.cchis.map(item2 => {
    this.$set(item2,'adjustPaymentPrice','')
    cchis.push(item2)
   })
   item.cchis = cchis
   this.fromData.cchiCombineBill.push(item)
  })
 },methods: {
  getFormPromise(form) {
   return new Promise(resolve => {
    form.validate(res => {
     resolve(res)
    })
   })
  },sureFn() {
   const mainForm = this.$refs.mainForm // 使用者資訊
   Promise.all(
    [mainForm].map(this.getFormPromise) // 校驗各個表單是否合格
   ).then(res => {
    const validateResult = res.every(item => !!item)
    if (validateResult) {
     console.log('表單都校驗通過')
    } else {
     this.$message({
      message: `填寫有誤，請檢查`,type: 'warning'
     })
    }
   })
  }
 }
}
</script>
<style lang="scss" scoped>
.bill-wrapper {
 min-width: 1110px;
 margin: 0 auto;
 padding: 20px;
 /deep/ .el-divider--horizontal {
  margin-top: 8px;
 }
 // /deep/ .el-form-item {
 //  margin-bottom: 30px;
 // }
 .return-p {
  margin-bottom: 20px;
 }
 .new-p {
  margin-top: 40px;
  text-align: center;
  .btn:first-child {
   margin-right: 30px;
  }
 }
 .pay-section {
  margin-top: 50px;
  .pay-p {
   padding-left: 10px;
   // border: 1px solid #e8e8e8;
   height: 30px;
   line-height: 30px;
   font-size: 14px;
   margin-top: 20px;
   background: #409eff;
   color: white;
  }
 }
 .sub-title {
  color: #444;
  margin-top: 30px;
 }
 .tip-p {
  margin-top: 15px;
  color: #409eff;
  font-size: 14px;
  margin-bottom: 5px;
  .tip-span {
   font-size: 12;
  }
 }
}
</style>

之前一直是陣列結合table 一層的校驗，琢磨了很久才終於領悟 element-ui 的 form表單校驗的精髓所在，

那就是 :prop 一定是遍歷的陣列'cchiCombineBill.' 加上（cchiCombineBill，index）中 的index，再加上具體要校驗的欄位。

以上這篇vue element table中自定義一些input的驗證操作就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支援我們。