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Vue3+Element+Ts實(shí)現(xiàn)表單的基礎(chǔ)搜索重置等功能

 更新時(shí)間：2021年12月24日 11:25:18   作者：卡洛背心  
本文主要介紹了Vue3+Element+Ts實(shí)現(xiàn)表單的基礎(chǔ)搜索重置等功能，文中通過示例代碼介紹的非常詳細(xì)，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

從Vue2的寫法轉(zhuǎn)變?yōu)閂ue3的格式之后，會(huì)有一些寫法和代碼結(jié)構(gòu)的改變，這里對(duì)一些重點(diǎn)進(jìn)行介紹。

在這里插入圖片描述

代碼結(jié)構(gòu)：

寫法一(推薦)：

<script setup lang="ts">
import { ref, reactive } from 'vue'
import type { ElForm } from 'element-plus'
const myform = ref<InstanceType<typeof ElForm>>()
const formData = reactive({
  name: '',
  subject: '',
  grade: ''
})
// 查找
const submitForm = () => {
  const { name, subject, grade } = formData
  console.log(name, subject, grade)
}
// 重置
const submitReset = () => {
  myform.value?.resetFields()
}
</script>

<template>
  <div class="mysearch">
    <el-form :model="formData" label-width="80px" ref="myform">
      <el-row :gutter="24">
        <el-col :span="8">
          <el-form-item label="名稱" prop="name">
            <el-input v-model="formData.name"></el-input>
          </el-form-item>
        </el-col>
        <el-col :span="8">
          <el-form-item label="學(xué)科" prop="subject">
            <el-input v-model="formData.subject"></el-input>
          </el-form-item>
        </el-col>
        <el-col :span="8">
          <el-form-item label="年級(jí)" prop="grade">
            <el-select v-model="formData.grade" placeholder="請(qǐng)選擇">
              <el-option label="一年級(jí)" value="shanghai"></el-option>
              <el-option label="二年級(jí)" value="beijing"></el-option>
            </el-select>
          </el-form-item>
        </el-col>
      </el-row>
      <el-row :gutter="20">
        <el-col :span="2" :offset="19">
          <el-button type="primary" size="medium" @click="submitForm">
            查 詢
          </el-button>
        </el-col>
        <el-col :span="2" :offset="0">
          <el-button type="primary" size="medium" @click="submitReset">
            重 置
          </el-button>
        </el-col>
      </el-row>
    </el-form>
  </div>
</template>

<style scoped lang="less">
.mysearch {
  padding: 20px;
}
</style>

寫法二：

<template>
  <div class="mysearch">
    <el-form ref="myform" :model="formData" label-width="80px">
      <el-row :gutter="24">
        <el-col :span="8">
          <el-form-item label="名稱" prop="name">
            <el-input v-model="formData.name"></el-input>
          </el-form-item>
        </el-col>
        <el-col :span="8">
          <el-form-item label="學(xué)科" prop="subject">
            <el-input v-model="formData.subject"></el-input>
          </el-form-item>
        </el-col>
        <el-col :span="8">
          <el-form-item label="年級(jí)" prop="grade">
            <el-select v-model="formData.grade" placeholder="請(qǐng)選擇">
              <el-option label="一年級(jí)" value="shanghai"></el-option>
              <el-option label="二年級(jí)" value="beijing"></el-option>
            </el-select>
          </el-form-item>
        </el-col>
      </el-row>
      <el-row :gutter="20">
        <el-col :span="2" :offset="19">
          <el-button type="primary" size="medium" @click="submitForm"
            >查 詢</el-button
          >
        </el-col>
        <el-col :span="2" :offset="0">
          <el-button type="primary" size="medium" @click="submitReset"
            >重 置</el-button
          >
        </el-col>
      </el-row>
    </el-form>
  </div>
</template>
<script lang="ts">
import { defineComponent, reactive, ref } from 'vue'
import { ElForm } from 'element-plus'

export default defineComponent({
  setup() {
    const formData = reactive({
      name: '',
      subject: '',
      grade: ''
    })
    const myform = ref<InstanceType<typeof ElForm>>()
    // 查找
    const submitForm = () => {
      const { name, subject, grade } = formData
      console.log(name, subject, grade)
    }
    // 重置
    const submitReset = () => {
      myform.value?.resetFields()
    }
    return {
      formData,
      myform,
      submitForm,
      submitReset
    }
  }
})
</script>

<style scoped lang="less">
.mysearch {
  padding: 20px;
}
</style>

區(qū)別：

  • 寫法一由上到下，分別是JS、HTML、Css，類似于React的寫法，邏輯也清晰
  • 寫法一由上到下，分別是HTML、JS、Css，和之前的Vue2寫法類似
  • 寫法一的格式不需要將data,methods等內(nèi)容進(jìn)行導(dǎo)出，節(jié)省了代碼量

重點(diǎn)：

1、Element Plus的官網(wǎng)Demo的代碼里面沒有寫prop

  <el-form-item label="Activity name">
      <el-input v-model="form.name"></el-input>
    </el-form-item>

為了實(shí)現(xiàn)數(shù)據(jù)的響應(yīng)式，在寫的時(shí)候需要自己綁定
2、使用el-form的ref需要引入ElForm

import { ElForm } from 'element-plus'
const myform = ref<InstanceType<typeof ElForm>>()

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