vue 动态添加el-input的实现逻辑
目录
- 一、效果图
- 二、实现逻辑
一、效果图
二、实现逻辑
- 将需要动态添加的表单项项的绑定值存为一个数组
- 以循环的方式展示form表单
- 点击`+`按钮触发事件,向数组中新加一个item
- 点击`-`按钮触发事件,根据循环的得到的index来删除数组中相对应位置的item三、代码实现
<template> <div> <el-button @click="isDilogShow = true" plain>动态添加input</el-button> <el-dialog title="特工安排" :visible.sync="isDilogShow" :close-on-click-modal="false" width="400px" > <el-form ref="form" :model="form"> <el-form-item> <div v-for="(item, index) in List" :key="index" class="content"> <el-form-item> <el-input class="numrule" type="number" style="max-width: 130px" v-model.number="item.num" placeholder="请输入代号" @input=" (val) => { handleNumChange(val, index) } " ></el-input> <span>搭档为</span> <el-select v-model="item.name" placeholder="请选择" style="max-width: 130px" > <el-option v-for="item in userList" :key="item.id" :label="item.name" :value="item.name" > </el-option> </el-select> <!-- 若表单中没有值则不可以新增item(可根据自己的需求进行更改哦) --> <span v-if="index === 0" :class=" item.num === null || item.name === '' ? 'change-icon-add' : 'change-icon' " ><i :style="{ pointerEvents: item.num === null || item.name === '' ? 'none' : 'auto', }" class="el-icon-circle-plus-outline" @click="addItem()" ></i ></span> <span v-else class="change-icon" @click="deleteItem(index)" ><i class="el-icon-remove-outline"></i ></span> </el-form-item> </div> </el-form-item> <el-form-item style="text-align: right;"> <el-button @click="isDilogShow = false">取消</el-button> <el-button type="primary" @click="onSubmit">确认</el-button> </el-form-item> </el-form> </el-dialog> </div> </template>
<script> export default { name: "About", data() { return { isDilogShow: false, form: { name: "", }, List: [{ num: "", name: "" }], userList: [ { id: 1, name: "麻雀" }, { id: 2, name: "夜莺" }, { id: 3, name: "百灵" }, ], } }, methods: { handleNumChange(v, i) { console.log(v) console.log(i) }, onSubmit() { console.log("submit!") }, // 新增任务分配 addItem() { this.List.push({ num: "", name: "", }) }, deleteItem(i) { this.List.splice(i, 1) }, }, } </script>
<style lang="scss"> .content { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; span{ margin: 0 8px; } .change-icon { font-size: 26px; cursor: pointer; } // 点击事件是否可用 ----> pointer-events:none; .change-icon-add { font-size: 26px; cursor: no-drop; } } .numrule { input::-webkit-outer-spin-button, input::-webkit-inner-spin-button { -webkit-appearance: none; } /* Firefox浏览器 */ input[type="number"] { -moz-appearance: textfield; } } </style>
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