element ui 表单多层嵌套的prop 校验与重置的写法
2022/7/14 23:21:45
本文主要是介绍element ui 表单多层嵌套的prop 校验与重置的写法，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！
在element ui 表单中 根据业务需要，有时候我们会遇到表单多层嵌套的prop 校验与重置的需要。这时候 就需要在
<el-form-item>标签中嵌套<el-form-item>，并且
el-form-item 标签的:prop属性，必须是其父级组件el-form中绑定model字段中的一个直接子属性。比如某个字段我们可以通过this.form.user_info[0].name获取到， 那么我们就需要设置prop为user_info[0].name，这样就可以添加校验规则了，其他嵌套情况也一样。如下：
<el-form-item
v-for="(info, index) in form.user_info"
:prop="'user_info.' + index + '.name'"
>
<el-input v-model="info.name"></el-input>
</el-form-item>
form: {
user_info: [
{
name: '',
sex: '',
age: ''
},
{
name: '',
sex: '',
age: ''
}
]
}
完整实例【步骤2、3即采用多层嵌套，通过：prop 来重置表单】，效果如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>编辑问卷</title>
<link rel="stylesheet" href="../plugin/bootstrap4/css/bootstrap.min.css" />
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<link rel="stylesheet" href="https://lib.baomitu.com/element-ui/2.15.7/theme-chalk/index.css">
<script src="https://lib.baomitu.com/element-ui/2.15.7/index.js"></script>
<style type="text/css">
.index {
padding: 20px 30px;
}
.el-form {
text-align: center;
}
.el-form-item {
margin: 22px auto;
}
.el-steps {
justify-content: center;
}
.radio-margin {
margin-left: 20px;
}
.el-radio {
margin: 20px 0;
}
.el-checkbox {
margin-top: 20px;
margin-right: 0;
}
/* 步骤条整体居中样式 */
.el-step__icon.is-text {
left: 50%;
transform: translateX(-50%);
}
.el-step.is-horizontal .el-step__line {
left: 50%;
width: 100%;
}
.el-step__title {
text-align: center;
}
</style>
</head>
<body>
<div id="edit" class="index">
<el-steps :space="200" :active="form.steps.index" finish-status="success">
<el-step :title="form.steps.stepTitle1"></el-step>
<el-step :title="form.steps.stepTitle2"></el-step>
<el-step :title="form.steps.stepTitle3"></el-step>
<el-step :title="form.steps.stepTitle4"></el-step>
</el-steps>
<el-form ref="form" :model="form" label-width="180px">
<div id="" v-show="form.isShow1">
<strong>配置问卷</strong>
<el-form-item label="调查问卷名称：" prop="name" style="width: 500px">
<el-input v-model="form.name" placeholder="请输入问卷名称"></el-input>
</el-form-item>
<el-form-item label="请设置单选题的数量：" prop="number1" style="width: 500px">
<el-input v-model="form.number1" placeholder="请输入单选题的数量"></el-input>
</el-form-item>
<el-form-item label="请设置多选题的数量：" prop="number2" style="width: 500px">
<el-input v-model="form.number2" placeholder="请输入多选题的数量"></el-input>
</el-form-item>
<el-form-item label="请设置问答题的数量：" prop="number3" style="width: 500px">
<el-input v-model="form.number3" placeholder="请输入问答题的数量"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="doNext">下一步</el-button>
</el-form-item>
</div>
<div id="" v-show="form.isShow2">
<strong>配置单选题</strong>
<span v-for="(item,index) in form.problemSingleArr">
<el-form-item :label="item.label+'：'" :prop="'problemSingleArr.' + index + '.'+ item.prop">
<el-input :autosize="{ minRows: 5}" type="textarea" v-model="item[item.prop]"
placeholder="请输入问题"></el-input>
</el-form-item>
<template v-for="(e, i) in item.arr ">
<el-form-item :prop="'problemSingleArr.'+ index + '.arr.' + i + '.'+ e.prop">
<el-radio-group v-model="e[e.prop]">
<template v-for="(j,x) in e.option">
<el-radio :label="j.label" style="display: block;">
{{j.label}}
<el-form-item :prop="'problemSingleArr.'+ index + '.arr.' + i + '.option.' + x + '.' + j.prop " style="display: inline-block;">
<el-input v-model="j[j.prop] " :placeholder=`请输入${j.label}选项对应的答案` class="radio-margin"></el-input>
</el-form-item>
</el-radio>
</template>
</el-radio-group>
</el-form-item>
</template>
</span>
<el-form-item>
<el-button type="primary" @click="doNext">下一步</el-button>
<el-button @click="doBack">上一步</el-button>
</el-form-item>
</div>
<div v-show="form.isShow3">
<strong>配置多选题</strong>
<span v-for="(item,index) in form.problemMoreArr">
<el-form-item :label="item.label+'：'" :prop="'problemMoreArr.' + index + '.'+ item.prop">
<el-input :autosize="{ minRows: 5}" type="textarea" v-model="item[item.prop]"
placeholder="请输入问题"></el-input>
</el-form-item>
<template v-for="(e, i) in item.arr ">
<el-form-item :prop="'problemMoreArr.'+ index + '.arr.' + i + '.'+ e.prop">
<el-checkbox-group v-model="e[e.prop]">
<template v-for="(j,x) in e.option">
<el-checkbox :label="j.label" style="display: block;">
{{j.label}}
<el-form-item :prop="'problemMoreArr.'+ index + '.arr.' + i + '.option.' + x + '.' + j.prop " style="display: inline-block;">
<el-input v-model="j[j.prop] " :placeholder=`请输入${j.label}选项对应的答案` class="radio-margin"></el-input>
</el-form-item>
</el-checkbox>
</template>
</el-checkbox-group>
</el-form-item>
</template>
</span>
<el-form-item>
<el-button type="primary" @click="doNext">下一步</el-button>
<el-button @click="doBack">上一步</el-button>
</el-form-item>
</div>
<div v-show="form.isShow4">
<strong>配置问答题</strong>
<span v-for="(item, index) in essayQuestionArr">
<el-form-item :label="item.label" :prop="item.prop">
<el-input :autosize="{ minRows: 5}" type="textarea" v-model="form[item.prop]"
placeholder="请输入问答题"></el-input>
</el-form-item>
</span>
<el-form-item>
<el-button type="primary" @click="doNext">完成</el-button>
<el-button @click="doBack">上一步</el-button>
</el-form-item>
</div>
</el-form>
</div>
<script src="../js/jquery-1.10.2.min.js"></script>
<script src="../plugin/bootstrap4/js/bootstrap.min.js"></script>
<script src="../js/config.js"></script>
<script type="text/javascript">
var app = new Vue({
el: '#edit',
data: {
essayQuestionArr: [
{
question: '',
label: '问答题1',
prop: 'essayQuestion1',
answer: ''
}, {
question: '',
label: '问答题2',
prop: 'essayQuestion2',
answer: ''
}
],
form: {
steps: {
index: 0,
stepTitle1: '进行中',
stepTitle2: '待进行',
stepTitle3: '待进行',
stepTitle4: '待进行',
},
isShow4: false,
isShow3: false,
isShow2: false,
isShow1: true,
name: '',
number1: '',
number2: '',
number3: '',
problemSingleArr: [
{
label: '问题1',
prop: 'problemArea',
problemArea: '',
arr: [
{
label: 'A',
prop: 'problemSingle',
problemSingle: '',
option: [
{
label: 'A',
prop: 'problemTextA',
problemTextA: ''
}, {
label: 'B',
prop: 'problemTextB',
problemTextB: ''
}, {
label: 'C',
prop: 'problemTextC',
problemTextC: ''
}, {
label: 'D',
prop: 'problemTextD',
problemTextD: ''
},
]
}
]
}, {
label: '问题2',
prop: 'problemArea',
problemArea: '',
arr: [
{
label: 'A',
prop: 'problemSingle',
problemSingle: '',
option: [
{
label: 'A',
prop: 'problemTextA',
problemTextA: ''
}, {
label: 'B',
prop: 'problemTextB',
problemTextB: ''
}, {
label: 'C',
prop: 'problemTextC',
problemTextC: ''
}, {
label: 'D',
prop: 'problemTextD',
problemTextD: ''
},
]
}
]
}
],
problemMoreArr:[
{
label: '问题一',
prop: 'problemArea',
problemArea: '',
arr: [
{
label: 'A',
prop: 'problemMore',
problemMore: [],
option: [
{
label: 'A',
prop: 'problemTextA',
problemTextA: ''
}, {
label: 'B',
prop: 'problemTextB',
problemTextB: ''
}, {
label: 'C',
prop: 'problemTextC',
problemTextC: ''
}, {
label: 'D',
prop: 'problemTextD',
problemTextD: ''
},
]
}
]
}, {
label: '问题二',
prop: 'problemArea',
problemArea: '',
arr: [
{
label: 'A',
prop: 'problemMore',
problemMore: [],
option: [
{
label: 'A',
prop: 'problemTextA',
problemTextA: ''
}, {
label: 'B',
prop: 'problemTextB',
problemTextB: ''
}, {
label: 'C',
prop: 'problemTextC',
problemTextC: ''
}, {
label: 'D',
prop: 'problemTextD',
problemTextD: ''
},
]
}
]
}
],
essayQuestion1: '',
essayQuestion2: '',
}
},
methods: {
doBack() {
this.form.steps.index--;
switch (this.form.steps.index) {
case 0:
this.form.steps.stepTitle1 = '进行中'
this.form.steps.stepTitle2 = '待进行'
this.form.isShow1 = true;
this.form.isShow2 = false;
break;
case 1:
this.form.steps.stepTitle2 = '进行中'
this.form.steps.stepTitle3 = '待进行'
this.form.isShow2 = true;
this.form.isShow3 = false;
break;
default:
this.form.steps.stepTitle3 = '进行中'
this.form.steps.stepTitle4 = '待进行'
this.form.isShow3 = true;
this.form.isShow4 = false;
}
},
doNext() {
this.form.steps.index++;
switch (this.form.steps.index) {
case 1:
this.form.steps.stepTitle1 = '已完成'
this.form.steps.stepTitle2 = '进行中'
this.form.isShow1 = false;
this.form.isShow2 = true;
break;
case 2:
this.form.steps.stepTitle2 = '已完成'
this.form.steps.stepTitle3 = '进行中'
this.form.isShow2 = false;
this.form.isShow3 = true;
break;
case 3:
this.form.steps.stepTitle3 = '已完成'
this.form.steps.stepTitle4 = '进行中'
this.form.isShow3 = false;
this.form.isShow4 = true;
break;
default:
this.form.steps = {
index: 0,
stepTitle1: '进行中',
stepTitle2: '待进行',
stepTitle3: '待进行',
stepTitle4: '待进行',
}
this.form.isShow4 = false
this.form.isShow3 = false
this.form.isShow2 = false
this.form.isShow1 = true
this.submitForm('form')
}
},
submitForm(formName) {
this.$refs[formName].validate((valid) => {
if (valid) {
console.log('submit!');
this.resetForm(formName)
} else {
console.log('error submit!!');
return false;
}
});
},
resetForm(formName) {
this.$refs[formName].resetFields();
}
},
})
</script>
</body>
</html>
参考过链接：ElementUI表单校验prop的嵌套写法 - SegmentFault 思否
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