使用element-ui +Vue 解決 table 裡包含表單驗證的問題

阿新 • • 發佈：2020-07-20

應用場景：

在實際使用中經常會遇到需要在Form表單中使用table表格進行表單提交，同時又需要對table的欄位進行校驗，效果如圖所示：

這個校驗中，最關鍵的問題在於如何給el-form-item 動態繫結prop。

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

方法一：

<template>
 <div class="app-container"> 
   <el-form :model="fromData" ref="from">
    <el-table :data="fromData.domains">
     <el-table-column label="姓名">
      <template slot-scope="scope">
       <el-form-item :prop="'domains.'+scope.$index+'.name'" :rules="fromaDataRules.name">
        <el-input v-model="scope.row.name"></el-input>
       </el-form-item>
      </template>
     </el-table-column>
     <el-table-column label="地址">
      <template slot-scope="scope">
       <el-form-item :prop="'domains.'+scope.$index+'.desc'" :rules="fromaDataRules.desc">
        <el-input v-model="scope.row.desc"></el-input>
       </el-form-item>
      </template>
     </el-table-column>
    </el-table>
   </el-form>
   <el-button type="warning" @click="submit('from')">submit</el-button>
 
 </div>
</template> 
<script>
 export default {
  data() {
   return { 
    fromData:{
     domains:undefined
    },fromaDataRules:{
     name:[{ required: true,message: '請輸入',trigger: 'blur' }],desc:[ { required: true,message: '請填寫',trigger: 'blur' }]
    },domains:[],}
  },mounted(){
   this.initDomains()
  },methods:{
   initDomains(){
    this.domains=[
     {
      name: "小紅",desc: "11123"
     },{
       name: "小紅",desc: "11123"
     }
    ]
   },init(){ 
    this.$set(this.fromData,'domains',this.domains)
   },submit(formName){
    this.$refs[formName].validate((valid) => {
     if (valid) {
      alert('submit!');
     } else {
      console.log('error submit!!');
      return false;
     }
    });
   }
  }
 }
</script>

上述程式碼中比較關鍵的部分有一下兩點：

1、:prop="‘domains.'+scope.$index+'.name'" ，用於動態繫結prop到el-form-item；

2、this.$set(this.fromData,‘domains',this.domains) ，用於為fromData設定domains這個節點。

方法二：

<template>
 <div class="app-container">
 
   <el-form :model="fromData" ref="from">
    <el-table :data="fromData.domains">
     <el-table-column label="姓名">
      <template slot-scope="scope">
       <el-form-item :prop="'domains.'+scope.$index+'.name'" :rules="fromData.fromaDataRules.name">
        <el-input v-model="scope.row.name"></el-input>
       </el-form-item>
      </template>
     </el-table-column>
     <el-table-column label="地址">
      <template slot-scope="scope">
       <el-form-item :prop="'domains.'+scope.$index+'.desc'" :rules="fromData.fromaDataRules.desc">
        <el-input v-model="scope.row.desc"></el-input>
       </el-form-item>
      </template>
     </el-table-column>
    </el-table>
   </el-form>
   <el-button type="warning" @click="submit('from')">submit</el-button> 
 </div>
</template> 
<script>
 export default {
  data() {
   return {
    
    fromData:{
	     fromaDataRules:{
	     name:[{ required: true,trigger: 'blur' }]
	    },},methods:{
   initDomains(){
    this.fromData.domains=[
     {
      name: "小紅",{
      name: "小紅",init(){ 
   },submit(formName){
    this.$refs[formName].validate((valid) => {
     if (valid) {
      alert('submit!');
     } else {
      console.log('error submit!!');
      return false;
     }
    });
   }
  }
 }
</script>

補充知識：Vue+ElementUI 完整增刪查改驗證功能的表格

我就廢話不多說了，大家還是直接看程式碼吧~

<template>
 <div class="block">
  <el-col>
   <el-row>
    <el-form>
     <el-form-item>
      <el-input style="width: 250px;float: left" placeholder="請輸入名稱" v-model="query"></el-input>
      <el-button @click="handleSelect" style="float: left;margin-left: 10px">查詢</el-button>
      <el-button @click="handleAdd" style="float: left;margin-left: 10px">新增</el-button>
     </el-form-item>
    </el-form>
   </el-row>
   <el-row>
  <el-table
   :data="tableData"
   style="width: 100%"
   border>
   <el-table-column
    prop="date"
    label="日期"
    width="250">
   </el-table-column>
   <el-table-column
    prop="name"
    label="姓名"
    width="250">
   </el-table-column>
   <el-table-column
    prop="address"
    label="地址"
    width="350">
   </el-table-column>
   <el-table-column>
    <template slot-scope="scope">
    <el-button size="mini" @click="handleEdit(scope.$index,scope.row)">編輯</el-button>
    <el-button size="mini" type="danger" @click="handleDelete(scope.$index,scope.row)">刪除</el-button>
    </template>
   </el-table-column>
  </el-table>
   </el-row>
   <el-row>
    <el-dialog class="dialog" :title="operation===true ?'新增':'編輯'" :visible.sync="dialogVisible" width="350px" >
     <el-form label-width="80px" :model="lineData" :rules="addRule" ref="lineData" >
      <el-form-item label="日期" prop="date">
       <el-input v-model="lineData.date"></el-input>
      </el-form-item>
      <el-form-item label="姓名" prop="name">
       <el-input v-model="lineData.name"></el-input>
      </el-form-item>
      <el-form-item label="地址">
       <el-input v-model="lineData.address"></el-input>
      </el-form-item>
      <el-form-item>
       <el-button @click="handleSave" type="primary">確定</el-button>
       <el-button @click="handleCancel">取消</el-button>
      </el-form-item>
     </el-form>
    </el-dialog>
   </el-row>
  </el-col>
 </div>
</template>

<script>export default {
 data () {
  return {
   operation: true,dialogVisible: false,lineData: {},editData: {},query: '',addRule: {
    date: [{required: true,message: '請輸入日期',trigger: 'blur'}],name: [{required: true,message: '請輸入名稱',trigger: 'blur'}]
   },tableData: [{
    id: 1,date: '2016-05-02',name: '王一虎',address: '上海市普陀區金沙江路 1518 弄'
   },{
    id: 2,date: '2016-05-04',name: '王二虎',address: '上海市普陀區金沙江路 1517 弄'
   },{
    id: 3,date: '2016-05-01',address: '上海市普陀區金沙江路 1519 弄'
   },{
    id: 4,date: '2016-05-03',name: '王四虎',address: '上海市普陀區金沙江路 1516 弄'
   }]
  }
 },methods: {
  handleEdit (index,row) {
   this.editData = JSON.stringify(row)
   this.lineData = JSON.parse(this.editData)
   this.dialogVisible = true
   this.operation = false
  },handleDelete (index,row) {
   this.tableData.splice(index,1)
  },handleAdd () {
   this.dialogVisible = true
   this.operation = true
   this.lineData = {}
   this.lineData.id = Math.random()
  },handleSelect () {
   if (this.query !== '') {
    const tmpData = []
    for (let item of this.tableData) {
     if (item.name === this.query) {
      tmpData.push(item)
     }
    }
    this.tableData = tmpData
   }
  },handleSave () {
   this.$refs.lineData.validate((valid) => {
    if (valid) {
     this.addLine(this.lineData)
     this.dialogVisible = false
    } else {
     alert('儲存失敗')
     return false
    }
   })
  },handleCancel () {
   this.dialogVisible = false
  },addLine (item) {
   let existed = false
   for (let i = 0; i < this.tableData.length; i++) {
    if (this.tableData[i].id === item.id) {
     this.tableData[i].id = item.id
     this.tableData[i].name = item.name
     this.tableData[i].address = item.address
     this.tableData[i].date = item.date
     existed = true
     break
    }
   }
   if (!existed) {
    this.tableData.push(this.lineData)
   }
  }
 }
}
</script>

<style scoped>
 .block{
  width: 75%;
  margin-left: 400px;
  margin-top: 200px;
 }
</style>

以上這篇使用element-ui +Vue 解決 table 裡包含表單驗證的問題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。