应用十二:Vue之动态表单的实现及校验

 

该篇仍然使用Vue + TypeScript的语法,以近期项目中的实例来做分享~

 

动态表单实现

首先给出页面展示效果:

该页面分为上下两部分,上面是静态表单部分,下面是动态的实现。简单来说就是每点击一次批量添加按钮就会新增一行设备信息表单,点击后面的移除就会删掉当前表单行。

 

静态表单就不多说了,动态表单的具体实现逻辑是:

1、将每一行的表单作为一个单独的组件进行封装。

2、使用一个数组来存储多个表单(也就是上一步封装的组件)并循环展示。

代码实现如下:

其中device-info就是封装好的组件,组件的完整实现如下:

<template>
  <div class="deviceInfo">
      <el-row>
        <el-col :span="6">
          <el-form-item label="设备编号" :prop="'list.'+index+'.deviceCode'" :rules="{
              required: true, message: '设备编号不能为空', trigger: 'blur'
            }">
            <el-input v-model="deviceInfo.deviceCode" clearable placeholder="" maxlength="20"
            @keyup.native="deviceInfo.deviceCode=deviceInfo.deviceCode.replace(/[^\w\.\/]/ig,'').toUpperCase()"></el-input>
          </el-form-item>
        </el-col>
        <el-col :span="6">
          <el-form-item label="设备品牌" :prop="'list.'+index+'.brandCode'" :rules="{
              required: true, message: '设备品牌不能为空', trigger: 'change'
            }">
            <el-select v-model="deviceInfo.brandCode" placeholder="" @change="handleChangeBrand">
              <el-option v-for="item in DEVICE_BRAND" :key="item.modelCode" :label="item.modelName" :value="item.modelCode"></el-option>
            </el-select>
          </el-form-item>
        </el-col>
        <el-col :span="6">
          <el-form-item label="设备型号" :prop="'list.'+index+'.modelCode'" :rules="{
              required: true, message: '设备型号不能为空', trigger: 'change'
            }">
            <el-select v-model="deviceInfo.modelCode" placeholder="">
              <el-option v-for="item in DEVICE_MODEL" :key="item.modelCode" :label="item.modelName" :value="item.modelCode"></el-option>
            </el-select>
          </el-form-item>
        </el-col>
        <el-col :span="6">
          <el-form-item label=" " v-if="list.length > 1">
            <el-button class="remove" type="primary" @click="removeComponent">移除</el-button>
          </el-form-item>
        </el-col>
      </el-row>
  </div>
</template>

<script lang="ts">
import { Component, Vue, Prop, Emit } from 'vue-property-decorator'
import ReportVO from '@/entity/MaintainManage/Report.ts'

@Component
export default class DeviceInfo extends Vue {
  @Prop({ default: 0 }) private index!: number  // 当前组件索引
  @Prop() private deviceInfo!: ReportVO  // 当前组件数据对象
  @Prop() private list!: Array<any>  // 存储组件的集合

  private DEVICE_BRAND: Array<Object> = []
  private DEVICE_MODEL: Array<Object> = []

  private mounted(): void {
    // 后台获取设备品牌 TODO
  }

  public handleChangeBrand(item: string) {
    // 后台根据品牌获取设备型号 TODO
  }
  
  @Emit('removeComponent')
  public removeComponent() {
    return this.index
  }
}
</script>

<style lang="scss">
  .deviceInfo {
    .el-textarea__inner {
      width: 420px;
    }
    .remove {
      color: #FAFAFA;
      background: #F56C6C;
      border-color: #F56C6C;
    }
  }
</style>
View Code

 

动态表单的批量添加和移除功能的实现如下:

 

动态表单校验

同样先给出页面表单校验的展示效果:

虽然整个页面分为上下静态表单和动态表单两部分,但用的是一个按钮一次提交的,为了实现统一校验,所以整个页面最好使用一个el-form标签包裹起来,静态表单的校验请参考《应用二:Vue之ElementUI Form表单校验》,而动态表单的校验有两个地方需要注意,一个是el-form-item标签上prop属性的写法,另一个就是校验规则的写法(只能写在标签上),具体写法如下:

prop的属性值中,listform对象中存储组件的数组,index是当前组件在数组中的索引,deviceCode就是当前表单绑定的字段,可以参考前面组件的完整实现代码。

 

下面给出整个页面的完整代码:

<template>
  <div class="maintainReport">
    <el-form ref="form" :model="form" :inline="true" label-width="120px" :rules="rules">
      <div class="my-form">
        <div class="my-title">添加寄件信息</div>
        <el-row>
          <el-col :span="6">
            <el-form-item label="寄件人" prop="loginWorkName">
              <el-input v-model="form.loginWorkName" clearable placeholder=""></el-input>
            </el-form-item>
          </el-col>
          <el-col :span="6">
            <el-form-item label="寄件人电话" prop="linkTel">
              <el-input v-model="form.linkTel" clearable placeholder=""></el-input>
            </el-form-item>
          </el-col>
          <el-col :span="6">
            <el-form-item label="寄送单号" prop="sendCode">
              <el-input v-model="form.sendCode" clearable placeholder="" maxlength="18" @keyup.native="form.sendCode=form.sendCode.replace(/[^\w\.\/]/ig,'').toUpperCase()"></el-input>
            </el-form-item>
          </el-col>
        </el-row>
      </div>
      <div class="my-table">
        <div class="my-title fl">添加设备信息</div>
        <div class="btn-table">
          <div class="btn-l">
            <el-button type="primary" icon="el-icon-circle-plus-outline" @click="addComponent">批量添加</el-button>
          </div>
        </div>
        <div class="clear" v-for="(item, $index) in form.list" :key="$index">
          <device-info :index="$index" :deviceInfo="item" :list="form.list" @removeComponent="removeComponent"></device-info>
          <hr style="border: 1px dashed #f3edf5;" v-if="$index!=form.list.length-1">
        </div>
      </div>
    </el-form>
    <div style="text-align: center;margin-top: 20px;">
      <el-button type="primary" plain @click="submitReport">维修上报提交</el-button>
    </div>
  </div>
</template>

<script lang="ts">
import { Component, Vue, Ref } from 'vue-property-decorator'
import MyVue from '@/utils/myVue.ts'
import DeviceInfo from '@/views/MaintainManage/components/DeviceInfo.vue'

@Component({
  components: {
    'device-info': DeviceInfo
  }
})
export default class MaintainReport extends MyVue {
  // data
  private form: any = {
    loginWorkName: '',
    linkTel: '',
    list: [{
      deviceCode: '',
      brandCode: '',
      modelCode: ''
    }]
  }

  private rules: any = {
    loginWorkName: [{required: true, message: '寄件人不能为空', trigger: 'blur'}],
    linkTel: [{required: true, message: '寄件人电话不能为空', trigger: 'blur'},
      {pattern: "^(1[3-9]{1}\\d{9})$", message: '电话格式不正确', trigger: 'blur'}]
  }

  public addComponent() {
    this.form.list.push({
      deviceCode: '',
      brandCode: '',
      modelCode: ''
    })
  }
  public removeComponent(index: number) {
    this.form.list.splice(index, 1);
  }

  @Ref('form') readonly submitForm!: any
  // 维修上报提交
  public submitReport() {
    this.submitForm.validate((valid: boolean) => {
      if (valid) {
        // TODO
      }
    })
  }
}
</script>

<style lang="scss">
  .maintainReport {
    .my-table .btn-table {
      left: 28px;
      width: calc(100% - 28px);
    }
    .el-button--small {
      width: auto;
    }
    .my-form .el-input__inner, .my-table .el-input__inner {
      width: 160px;
      height: 30px;
      line-height: 30px;
    }
    .detail-info .el-input__inner {
      width: 480px;
    }
    .el-textarea__inner {
      width: 625px;
    }
  }
</style>
View Code

 

以上就是关于动态表单实现及校验的分享,有任何疑问和不足欢迎留言并指正!!!

posted @ 2020-01-17 11:31  风岳轩  阅读(8678)  评论(0编辑  收藏  举报