前言:
vue + element 项目中遇到form表单需要动态增删的情况,做了个小demo,效果大概是这样的:
这里主要想讲的是,表单中某属性是个数组,而想要验证每个数组里的每个数据,该怎么配置呢?
html部分代码:
<template>
<div class="hello">
<el-form :model="form" :rules="rules" ref="form" label-width="100px">
<el-row v-for="(item, index) in form.data" :key="index">
<el-col :span="8">
<el-form-item label="姓名" :prop="`data[${index}].name`" :rules='rules.name'>
<el-input v-model="item.name" clearable></el-input>
</el-form-item>
</el-col>
<el-col :span="8">
<el-form-item label="年龄" :prop="`data[${index}].age`" :rules='rules.age'>
<el-input v-model="item.age" clearable></el-input>
</el-form-item>
</el-col>
</el-row>
<el-form-item>
<el-button type="primary" @click="add()">添加</el-button>
<el-button type="primary" @click="submitForm('form')">提交</el-button>
<el-button @click="resetForm('form')">重置</el-button>
</el-form-item>
</el-form>
</div>
</template>
其中 rules是每一项单独配置的 , :prop="`data[${index}].name`" 也可以像下面这样写:
:prop="'data.' + index + '.name'"
js部分代码:
<script>
export default {
name: 'HelloWorld',
data () {
return {
form: {
data: []
},
rules: {
name: [
{ required: true, message: '请输入姓名', trigger: 'blur' }
],
age: [
{ required: false, message: '请输入年龄', trigger: 'blur' }
]
}
}
},
methods: {
submitForm (formName) {
this.$refs[formName].validate((valid) => {
if (valid) {
alert('submit!')
} else {
console.log('error submit!!')
return false
}
})
},
// 点击添加一条数据
add () {
this.form.data.push({
name: '',
age: null
})
},
resetForm (formName) {
this.$refs[formName].resetFields()
}
}
}
</script>