Form 表单
由输入框、选择器、单选框、多选框等控件组成，用以收集、校验、提交数据，组件升级采用了 flex 布局，以替代旧版本的 float 布局。
典型表单
包括各种表单项，比如输入框、选择器、开关、单选框、多选框等。
在 Form 组件中，每一个表单域由一个 Form-Item 组件构成，表单域中可以放置各种类型的表单控件，包括 Input、Select、Checkbox、Radio、Switch、DatePicker、TimePicker
<template>
<el-form ref="form" :model="form" label-width="80px">
<el-form-item label="活动名称">
<el-input v-model="form.name"></el-input>
</el-form-item>
<el-form-item label="活动区域">
<el-select v-model="form.region" placeholder="请选择活动区域">
<el-option label="区域一" value="shanghai"></el-option>
<el-option label="区域二" value="beijing"></el-option>
</el-select>
</el-form-item>
<el-form-item label="活动时间">
<el-col :span="11">
<el-date-picker
type="date"
placeholder="选择日期"
v-model="form.date1"
style="width: 100%;"
></el-date-picker>
</el-col>
<el-col class="line" :span="2">-</el-col>
<el-col :span="11">
<el-time-picker
placeholder="选择时间"
v-model="form.date2"xx`
style="width: 100%;"
></el-time-picker>
</el-col>
</el-form-item>
<el-form-item label="即时配送">
<el-switch v-model="form.delivery"></el-switch>
</el-form-item>
<el-form-item label="活动性质">
<el-checkbox-group v-model="form.type">
<el-checkbox label="美食/餐厅线上活动" name="type"></el-checkbox>
<el-checkbox label="地推活动" name="type"></el-checkbox>
<el-checkbox label="线下主题活动" name="type"></el-checkbox>
<el-checkbox label="单纯品牌曝光" name="type"></el-checkbox>
</el-checkbox-group>
</el-form-item>
<el-form-item label="特殊资源">
<el-radio-group v-model="form.resource">
<el-radio label="线上品牌商赞助"></el-radio>
<el-radio label="线下场地免费"></el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="活动形式">
<el-input type="textarea" v-model="form.desc"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="onSubmit">立即创建</el-button>
<el-button>取消</el-button>
</el-form-item>
</el-form>
</template>
<script>
export default {
data() {
return {
form: {
name: '',
region: '',
date1: '',
date2: '',
delivery: false,
type: [],
resource: '',
desc: '',
},
}
},
methods: {
onSubmit() {
console.log('submit!')
},
},
}
</script>
表单验证
在防止用户犯错的前提下，尽可能让用户更早地发现并纠正错误。
Form 组件提供了表单验证的功能，只需要通过 rules 属性传入约定的验证规则，并将 Form-Item 的 prop 属性设置为需校验的字段名即可。
<template>
<el-form
:model="ruleForm"
:rules="rules"
ref="ruleForm"
label-width="100px"
class="demo-ruleForm"
>
<el-form-item label="活动名称" prop="name">
<el-input v-model="ruleForm.name"></el-input>
</el-form-item>
<el-form-item label="活动区域" prop="region">
<el-select v-model="ruleForm.region" placeholder="请选择活动区域">
<el-option label="区域一" value="shanghai"></el-option>
<el-option label="区域二" value="beijing"></el-option>
</el-select>
</el-form-item>
<el-form-item label="活动时间" required>
<el-col :span="11">
<el-form-item prop="date1">
<el-date-picker
type="date"
placeholder="选择日期"
v-model="ruleForm.date1"
style="width: 100%;"
></el-date-picker>
</el-form-item>
</el-col>
<el-col class="line" :span="2">-</el-col>
<el-col :span="11">
<el-form-item prop="date2">
<el-time-picker
placeholder="选择时间"
v-model="ruleForm.date2"
style="width: 100%;"
></el-time-picker>
</el-form-item>
</el-col>
</el-form-item>
<el-form-item label="即时配送" prop="delivery">
<el-switch v-model="ruleForm.delivery"></el-switch>
</el-form-item>
<el-form-item label="活动性质" prop="type">
<el-checkbox-group v-model="ruleForm.type">
<el-checkbox label="美食/餐厅线上活动" name="type"></el-checkbox>
<el-checkbox label="地推活动" name="type"></el-checkbox>
<el-checkbox label="线下主题活动" name="type"></el-checkbox>
<el-checkbox label="单纯品牌曝光" name="type"></el-checkbox>
</el-checkbox-group>
</el-form-item>
<el-form-item label="特殊资源" prop="resource">
<el-radio-group v-model="ruleForm.resource">
<el-radio label="线上品牌商赞助"></el-radio>
<el-radio label="线下场地免费"></el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="活动形式" prop="desc">
<el-input type="textarea" v-model="ruleForm.desc"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="submitForm('ruleForm')"
>立即创建</el-button
>
<el-button @click="resetForm('ruleForm')">重置</el-button>
</el-form-item>
</el-form>
</template>
<script>
export default {
data() {
return {
ruleForm: {
name: '',
region: '',
date1: '',
date2: '',
delivery: false,
type: [],
resource: '',
desc: '',
},
rules: {
name: [
{ required: true, message: '请输入活动名称', trigger: 'blur' },
{
min: 3,
max: 5,
message: '长度在 3 到 5 个字符',
trigger: 'blur',
},
],
region: [
{ required: true, message: '请选择活动区域', trigger: 'change' },
],
date1: [
{
type: 'date',
required: true,
message: '请选择日期',
trigger: 'change',
},
],
date2: [
{
type: 'date',
required: true,
message: '请选择时间',
trigger: 'change',
},
],
type: [
{
type: 'array',
required: true,
message: '请至少选择一个活动性质',
trigger: 'change',
},
],
resource: [
{ required: true, message: '请选择活动资源', trigger: 'change' },
],
desc: [
{ required: true, message: '请填写活动形式', trigger: 'blur' },
],
},
}
},
methods: {
submitForm(formName) {
this.$refs[formName].validate((valid) => {
if (valid) {
alert('submit!')
} else {
console.log('error submit!!')
return false
}
})
},
resetForm(formName) {
this.$refs[formName].resetFields()
},
},
}
</script>表单数据的定义：
ruleForm: {
name: '',
region: '',
date1: '',
date2: '',
delivery: false,
type: [],
resource: '',
desc: '',
},表单数据校验规则的定义：
rules: {
name: [
{ required: true, message: '请输入活动名称', trigger: 'blur' },
{
min: 3,
max: 5,
message: '长度在 3 到 5 个字符',
trigger: 'blur',
},
],
region: [
{ required: true, message: '请选择活动区域', trigger: 'change' },
],
date1: [
{
type: 'date',
required: true,
message: '请选择日期',
trigger: 'change',
},
],
date2: [
{
type: 'date',
required: true,
message: '请选择时间',
trigger: 'change',
},
],
type: [
{
type: 'array',
required: true,
message: '请至少选择一个活动性质',
trigger: 'change',
},
],
resource: [
{ required: true, message: '请选择活动资源', trigger: 'change' },
],
desc: [
{ required: true, message: '请填写活动形式', trigger: 'blur' },
],
},
}
},
