element/examples/docs/es/form.md

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<script>
export default {
data() {
var checkAge = (rule, value, callback) => {
if (!value) {
return callback(new Error('Please input the age'));
}
setTimeout(() => {
if (!Number.isInteger(value)) {
callback(new Error('Please input digits'));
} else {
if (value < 18) {
callback(new Error('Age must be greater than 18'));
} else {
callback();
}
}
}, 1000);
};
var validatePass = (rule, value, callback) => {
if (value === '') {
callback(new Error('Please input the password'));
} else {
if (this.ruleForm2.checkPass !== '') {
this.$refs.ruleForm2.validateField('checkPass');
}
callback();
}
};
var validatePass2 = (rule, value, callback) => {
if (value === '') {
callback(new Error('Please input the password again'));
} else if (value !== this.ruleForm2.pass) {
callback(new Error('Two inputs don\'t match!'));
} else {
callback();
}
};
return {
form: {
name: '',
region: '',
date1: '',
date2: '',
delivery: false,
type: [],
resource: '',
desc: ''
},
sizeForm: {
name: '',
region: '',
date1: '',
date2: '',
delivery: false,
type: [],
resource: '',
desc: ''
},
formInline: {
user: '',
region: ''
},
labelPosition: 'right',
formLabelAlign: {
name: '',
region: '',
type: ''
},
ruleForm: {
name: '',
region: '',
date1: '',
date2: '',
delivery: false,
type: [],
resource: '',
desc: ''
},
ruleForm2: {
pass: '',
checkPass: '',
age: ''
},
formLabelWidth: '80px',
options: [
],
rules: {
name: [
{ required: true, message: 'Please input Activity name', trigger: 'blur' },
{ min: 3, max: 5, message: 'Length should be 3 to 5', trigger: 'blur' }
],
region: [
{ required: true, message: 'Please select Activity zone', trigger: 'change' }
],
date1: [
{ type: 'date', required: true, message: 'Please pick a date', trigger: 'change' }
],
date2: [
{ type: 'date', required: true, message: 'Please pick a time', trigger: 'change' }
],
type: [
{ type: 'array', required: true, message: 'Please select at least one activity type', trigger: 'change' }
],
resource: [
{ required: true, message: 'Please select activity resource', trigger: 'change' }
],
desc: [
{ required: true, message: 'Please input activity form', trigger: 'blur' }
]
},
rules2: {
pass: [
{ validator: validatePass, trigger: 'blur' }
],
checkPass: [
{ validator: validatePass2, trigger: 'blur' }
],
age: [
{ validator: checkAge, trigger: 'blur' }
]
},
dynamicValidateForm: {
domains: [{
key: Date.now(),
value: ''
}],
email: ''
},
numberValidateForm: {
age: ''
}
};
},
methods: {
onSubmit() {
console.log('submit!');
},
onRuleFormSubmit() {
console.log('onRuleFormSubmit');
},
submitForm(formName) {
this.$refs[formName].validate((valid) => {
if (valid) {
alert('submit!');
} else {
console.log('error submit!!');
return false;
}
});
},
resetForm(formName) {
this.$refs[formName].resetFields();
},
removeDomain(item) {
var index = this.dynamicValidateForm.domains.indexOf(item)
if (index !== -1) {
this.dynamicValidateForm.domains.splice(index, 1)
}
},
addDomain() {
this.dynamicValidateForm.domains.push({
key: Date.now(),
value: ''
});
}
}
}
</script>
<style>
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.demo-form.demo-es {
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.el-select .el-input {
width: 360px;
}
.el-form {
width: 480px;
}
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.line {
text-align: center;
}
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.el-checkbox-group {
width: 320px;
margin: 0;
padding: 0;
list-style: none;
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&:after, &:before {
content: ' ';
display: table;
}
&:after {
clear: both;
visibility: hidden;
font-size: 0;
height: 0;
}
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.el-checkbox {
float: left;
width: 160px;
padding-right: 20px;
margin: 0;
padding: 0;
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+ .el-checkbox {
margin-left: 0;
}
}
}
.demo-form-normal {
width: 480px;
}
.demo-form-inline {
width: auto;
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.el-input {
width: 150px;
}
> * {
margin-right: 10px;
}
}
.demo-ruleForm {
width: 480px;
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.el-select .el-input {
width: 360px;
}
}
.demo-dynamic {
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width: 500px;
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.el-input {
margin-right: 10px;
width: 270px;
vertical-align: top;
}
}
.fr {
float: right;
}
}
</style>
## Form
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Form consiste en `input`, `radio`, `select`, `checkbox`, etcétera. Con el formulario, usted puede recopilar, verificar y enviar datos.
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### Form básico
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Incluye todo tipo de entradas, tales como `input`, `select`, `radio` y `checkbox`.
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:::demo En cada componente `form`, necesita un campo `form-item` para que sea el contenedor del item.
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```html
<el-form ref="form" :model="form" label-width="120px">
<el-form-item label="Activity name">
<el-input v-model="form.name"></el-input>
</el-form-item>
<el-form-item label="Activity zone">
<el-select v-model="form.region" placeholder="please select your zone">
<el-option label="Zone one" value="shanghai"></el-option>
<el-option label="Zone two" value="beijing"></el-option>
</el-select>
</el-form-item>
<el-form-item label="Activity time">
<el-col :span="11">
<el-date-picker type="date" placeholder="Pick a date" 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 type="fixed-time" placeholder="Pick a time" v-model="form.date2" style="width: 100%;"></el-time-picker>
</el-col>
</el-form-item>
<el-form-item label="Instant delivery">
<el-switch v-model="form.delivery"></el-switch>
</el-form-item>
<el-form-item label="Activity type">
<el-checkbox-group v-model="form.type">
<el-checkbox label="Online activities" name="type"></el-checkbox>
<el-checkbox label="Promotion activities" name="type"></el-checkbox>
<el-checkbox label="Offline activities" name="type"></el-checkbox>
<el-checkbox label="Simple brand exposure" name="type"></el-checkbox>
</el-checkbox-group>
</el-form-item>
<el-form-item label="Resources">
<el-radio-group v-model="form.resource">
<el-radio label="Sponsor"></el-radio>
<el-radio label="Venue"></el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="Activity form">
<el-input type="textarea" v-model="form.desc"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="onSubmit">Create</el-button>
<el-button>Cancel</el-button>
</el-form-item>
</el-form>
<script>
export default {
data() {
return {
form: {
name: '',
region: '',
date1: '',
date2: '',
delivery: false,
type: [],
resource: '',
desc: ''
}
}
},
methods: {
onSubmit() {
console.log('submit!');
}
}
}
</script>
```
:::
:::tip
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[W3C](https://www.w3.org/MarkUp/html-spec/html-spec_8.html#SEC8.2) reglamenta que
> <i>Cuando sólo hay un campo de entrada de texto de una sola línea en un formulario, el agente usuario debe aceptar <b>Enter</b> en ese campo como una solicitud para enviar el formulario.</i>
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Para prevenir este comportamiento, puede agregar `@submit.native.prevent` on `<el-form>`.
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:::
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### Formulario inline
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Cuando el espacio vertical es limitado y la forma es relativamente simple, puede ponerlo en una unica línea.
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:::demo Establezca el atributo `inline` como `true` y el formulario sera inline.
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```html
<el-form :inline="true" :model="formInline" class="demo-form-inline">
<el-form-item label="Approved by">
<el-input v-model="formInline.user" placeholder="Approved by"></el-input>
</el-form-item>
<el-form-item label="Activity zone">
<el-select v-model="formInline.region" placeholder="Activity zone">
<el-option label="Zone one" value="shanghai"></el-option>
<el-option label="Zone two" value="beijing"></el-option>
</el-select>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="onSubmit">Query</el-button>
</el-form-item>
</el-form>
<script>
export default {
data() {
return {
formInline: {
user: '',
region: ''
}
}
},
methods: {
onSubmit() {
console.log('submit!');
}
}
}
</script>
```
:::
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### Alineamiento
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Dependiendo de su diseño, hay varias maneras diferentes de alinear el elemento de la etiqueta.
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:::demo El atributo `label-position` decide cómo se alinean las etiquetas, puede estar `top` o `left`. Cuando se establece en `top`, las etiquetas se colocarán en la parte superior del campo de formulario.
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```html
<el-radio-group v-model="labelPosition" size="small">
<el-radio-button label="left">Left</el-radio-button>
<el-radio-button label="right">Right</el-radio-button>
<el-radio-button label="top">Top</el-radio-button>
</el-radio-group>
<div style="margin: 20px;"></div>
<el-form :label-position="labelPosition" label-width="100px" :model="formLabelAlign">
<el-form-item label="Name">
<el-input v-model="formLabelAlign.name"></el-input>
</el-form-item>
<el-form-item label="Activity zone">
<el-input v-model="formLabelAlign.region"></el-input>
</el-form-item>
<el-form-item label="Activity form">
<el-input v-model="formLabelAlign.type"></el-input>
</el-form-item>
</el-form>
<script>
export default {
data() {
return {
labelPosition: 'right',
formLabelAlign: {
name: '',
region: '',
type: ''
}
};
}
}
</script>
```
:::
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### Validación
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El componente `form` le permite verificar sus datos, ayudándole a encontrar y corregir errores.
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:::demo Sólo tiene que añadir el atributo `rules` en el componente `Form`, pasar las reglas de validación y establecer el atributo `prop` para `Form-Item` como una clave específica que necesita ser validada. Ver más información en [async-validator](https://github.com/yiminghe/async-validator).
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```html
<el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="120px" class="demo-ruleForm">
<el-form-item label="Activity name" prop="name">
<el-input v-model="ruleForm.name"></el-input>
</el-form-item>
<el-form-item label="Activity zone" prop="region">
<el-select v-model="ruleForm.region" placeholder="Activity zone">
<el-option label="Zone one" value="shanghai"></el-option>
<el-option label="Zone two" value="beijing"></el-option>
</el-select>
</el-form-item>
<el-form-item label="Activity time" required>
<el-col :span="11">
<el-form-item prop="date1">
<el-date-picker type="date" placeholder="Pick a date" 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 type="fixed-time" placeholder="Pick a time" v-model="ruleForm.date2" style="width: 100%;"></el-time-picker>
</el-form-item>
</el-col>
</el-form-item>
<el-form-item label="Instant delivery" prop="delivery">
<el-switch v-model="ruleForm.delivery"></el-switch>
</el-form-item>
<el-form-item label="Activity type" prop="type">
<el-checkbox-group v-model="ruleForm.type">
<el-checkbox label="Online activities" name="type"></el-checkbox>
<el-checkbox label="Promotion activities" name="type"></el-checkbox>
<el-checkbox label="Offline activities" name="type"></el-checkbox>
<el-checkbox label="Simple brand exposure" name="type"></el-checkbox>
</el-checkbox-group>
</el-form-item>
<el-form-item label="Resources" prop="resource">
<el-radio-group v-model="ruleForm.resource">
<el-radio label="Sponsorship"></el-radio>
<el-radio label="Venue"></el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="Activity form" 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')">Create</el-button>
<el-button @click="resetForm('ruleForm')">Reset</el-button>
</el-form-item>
</el-form>
<script>
export default {
data() {
return {
ruleForm: {
name: '',
region: '',
date1: '',
date2: '',
delivery: false,
type: [],
resource: '',
desc: ''
},
rules: {
name: [
{ required: true, message: 'Please input Activity name', trigger: 'blur' },
{ min: 3, max: 5, message: 'Length should be 3 to 5', trigger: 'blur' }
],
region: [
{ required: true, message: 'Please select Activity zone', trigger: 'change' }
],
date1: [
{ type: 'date', required: true, message: 'Please pick a date', trigger: 'change' }
],
date2: [
{ type: 'date', required: true, message: 'Please pick a time', trigger: 'change' }
],
type: [
{ type: 'array', required: true, message: 'Please select at least one activity type', trigger: 'change' }
],
resource: [
{ required: true, message: 'Please select activity resource', trigger: 'change' }
],
desc: [
{ required: true, message: 'Please input activity form', trigger: 'blur' }
]
}
};
},
methods: {
submitForm(formName) {
this.$refs[formName].validate((valid) => {
if (valid) {
alert('submit!');
} else {
console.log('error submit!!');
return false;
}
});
},
resetForm(formName) {
this.$refs[formName].resetFields();
}
}
}
</script>
```
:::
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### Reglas personalizadas de validación
Este ejemplo muestra cómo personalizar sus propias reglas de validación para finalizar una verificación de contraseña de dos pasos.
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:::demo Aquí utilizamos el `status-icon` para reflejar el resultado de la validación como un icono.
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```html
<el-form :model="ruleForm2" status-icon :rules="rules2" ref="ruleForm2" label-width="120px" class="demo-ruleForm">
<el-form-item label="Password" prop="pass">
<el-input type="password" v-model="ruleForm2.pass" auto-complete="off"></el-input>
</el-form-item>
<el-form-item label="Confirm" prop="checkPass">
<el-input type="password" v-model="ruleForm2.checkPass" auto-complete="off"></el-input>
</el-form-item>
<el-form-item label="Age" prop="age">
<el-input v-model.number="ruleForm2.age"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="submitForm('ruleForm2')">Submit</el-button>
<el-button @click="resetForm('ruleForm2')">Reset</el-button>
</el-form-item>
</el-form>
<script>
export default {
data() {
var checkAge = (rule, value, callback) => {
if (!value) {
return callback(new Error('Please input the age'));
}
setTimeout(() => {
if (!Number.isInteger(value)) {
callback(new Error('Please input digits'));
} else {
if (value < 18) {
callback(new Error('Age must be greater than 18'));
} else {
callback();
}
}
}, 1000);
};
var validatePass = (rule, value, callback) => {
if (value === '') {
callback(new Error('Please input the password'));
} else {
if (this.ruleForm2.checkPass !== '') {
this.$refs.ruleForm2.validateField('checkPass');
}
callback();
}
};
var validatePass2 = (rule, value, callback) => {
if (value === '') {
callback(new Error('Please input the password again'));
} else if (value !== this.ruleForm2.pass) {
callback(new Error('Two inputs don\'t match!'));
} else {
callback();
}
};
return {
ruleForm2: {
pass: '',
checkPass: '',
age: ''
},
rules2: {
pass: [
{ validator: validatePass, trigger: 'blur' }
],
checkPass: [
{ validator: validatePass2, trigger: 'blur' }
],
age: [
{ validator: checkAge, 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>
```
:::
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### Eliminar o agregar validaciones dinamicamente
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:::demo Además de pasar todas las reglas de validación al mismo tiempo en el componente `form`, también puede pasar las reglas de validación o borrar reglas en un único campo de formulario de forma dinámica.
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```html
<el-form :model="dynamicValidateForm" ref="dynamicValidateForm" label-width="120px" class="demo-dynamic">
<el-form-item
prop="email"
label="Email"
:rules="[
{ required: true, message: 'Please input email address', trigger: 'blur' },
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{ type: 'email', message: 'Please input correct email address', trigger: ['blur', 'change'] }
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]"
>
<el-input v-model="dynamicValidateForm.email"></el-input>
</el-form-item>
<el-form-item
v-for="(domain, index) in dynamicValidateForm.domains"
:label="'Domain' + index"
:key="domain.key"
:prop="'domains.' + index + '.value'"
:rules="{
required: true, message: 'domain can not be null', trigger: 'blur'
}"
>
<el-input v-model="domain.value"></el-input><el-button @click.prevent="removeDomain(domain)">Delete</el-button>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="submitForm('dynamicValidateForm')">Submit</el-button>
<el-button @click="addDomain">New domain</el-button>
<el-button @click="resetForm('dynamicValidateForm')">Reset</el-button>
</el-form-item>
</el-form>
<script>
export default {
data() {
return {
dynamicValidateForm: {
domains: [{
key: 1,
value: ''
}],
email: ''
}
};
},
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();
},
removeDomain(item) {
var index = this.dynamicValidateForm.domains.indexOf(item);
if (index !== -1) {
this.dynamicValidateForm.domains.splice(index, 1);
}
},
addDomain() {
this.dynamicValidateForm.domains.push({
key: Date.now(),
value: ''
});
}
}
}
</script>
```
:::
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### Validación numerica
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:::demo La validacion numerica necesita un modificador `.number` añadido en el enlace `v-model` de entrada, sirve para transformar el valor de la cadena al número proporcionado por Vuejs.
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```html
<el-form :model="numberValidateForm" ref="numberValidateForm" label-width="100px" class="demo-ruleForm">
<el-form-item
label="age"
prop="age"
:rules="[
{ required: true, message: 'age is required'},
{ type: 'number', message: 'age must be a number'}
]"
>
<el-input type="age" v-model.number="numberValidateForm.age" auto-complete="off"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="submitForm('numberValidateForm')">Submit</el-button>
<el-button @click="resetForm('numberValidateForm')">Reset</el-button>
</el-form-item>
</el-form>
<script>
export default {
data() {
return {
numberValidateForm: {
age: ''
}
};
},
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>
```
:::
:::tip
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Cuando un `el-form-item` está anidado en otro `el-form-item`, su ancho de etiqueta será 0. Si es necesario, puede establecer el ancho de etiqueta en ese `el-form-item`.
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:::
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### Tamaño del control
Todos los componentes de un formulario heredan su atributo `size`. De manera similar, FormItem también tiene un atributo `size`.
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:::demo Aún así, puede ajustar el `size` de cada componente si no desea que herede su tamaño de From o FormItem.
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```html
<el-form ref="form" :model="sizeForm" label-width="120px" size="mini">
<el-form-item label="Activity name">
<el-input v-model="sizeForm.name"></el-input>
</el-form-item>
<el-form-item label="Activity zone">
<el-select v-model="sizeForm.region" placeholder="please select your zone">
<el-option label="Zone one" value="shanghai"></el-option>
<el-option label="Zone two" value="beijing"></el-option>
</el-select>
</el-form-item>
<el-form-item label="Activity time">
<el-col :span="11">
<el-date-picker type="date" placeholder="Pick a date" v-model="sizeForm.date1" style="width: 100%;"></el-date-picker>
</el-col>
<el-col class="line" :span="2">-</el-col>
<el-col :span="11">
<el-time-picker type="fixed-time" placeholder="Pick a time" v-model="sizeForm.date2" style="width: 100%;"></el-time-picker>
</el-col>
</el-form-item>
<el-form-item label="Activity type">
<el-checkbox-group v-model="sizeForm.type">
<el-checkbox-button label="Online activities" name="type"></el-checkbox-button>
<el-checkbox-button label="Promotion activities" name="type"></el-checkbox-button>
</el-checkbox-group>
</el-form-item>
<el-form-item label="Resources">
<el-radio-group v-model="sizeForm.resource" size="medium">
<el-radio border label="Sponsor"></el-radio>
<el-radio border label="Venue"></el-radio>
</el-radio-group>
</el-form-item>
<el-form-item size="large">
<el-button type="primary" @click="onSubmit">Create</el-button>
<el-button>Cancel</el-button>
</el-form-item>
</el-form>
<script>
export default {
data() {
return {
sizeForm: {
name: '',
region: '',
date1: '',
date2: '',
delivery: false,
type: [],
resource: '',
desc: ''
}
};
},
methods: {
onSubmit() {
console.log('submit!');
}
}
};
</script>
```
:::
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### Form Atributos
| Atributo | Descripción | Tipo | Valores aceptados | Por defecto |
| ----------------------- | ---------------------------------------- | ------- | --------------------- | ----------- |
| model | Datos del componente | object | — | — |
| rules | Reglas de validación | object | — | — |
| inline | Si el form es inline | boolean | — | false |
| label-position | Posicion de la etiqueta | string | left / right / top | right |
| label-width | ancho de la etiqueta, y todos los form items directos descendientes heredarán este valor | string | — | — |
| label-suffix | sufijo de la etiqueta | string | — | — |
| show-message | si mostrar o no el mensaje de error | boolean | — | true |
| inline-message | si desea visualizar el mensaje de error inline con la posición del form item | boolean | — | false |
| status-icon | si desea visualizar un icono que indique el resultado de la validación | boolean | — | false |
| validate-on-rule-change | si se dispara la validacion cuando el prop `rules` cambia | boolean | — | true |
| size | el tamaño de los componentes en este form | string | medium / small / mini | — |
| disabled | si se desactivan todos los componentes del formulario. Si esta en `true` no puede ser cambiado por el prop `disabled` individual de los componentes. | boolean | — | false |
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### Form Metodos
| Metodo | Descripción | Parametros |
| ------------- | ---------------------------------------- | ---------------------------------------- |
| validate | el método para validar todo el formulario. Takes a callback as a param. After validation, the callback will be executed with two params: a boolean indicating if the validation has passed, and an object containing all fields that fail the validation. Devuelve una promesa si se omite el return | Function(callback: Function(boolean, object)) |
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| validateField | el método para validar un determinado form item | Function(prop: string, callback: Function(errorMessage: string)) |
| resetFields | restablece todos los campos y elimina el resultado de validación | — |
| clearValidate | limpia mensaje de validación para todos los campos | -
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### Form Events
| Nombre | Descripción | Parametros |
| -------- | ---------------------------------------------------- | ------------------------------------------------------------ |
| validate | se dispara después de validar un item del formulario | la propiedad (`prop name`) nombre del item del form que se esta validando, si la validacion paso o no. |
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### Form-Item Atributos
| Atributo | Descripción | Tipo | Valores aceptados | Por defecto |
| -------------- | ---------------------------------------- | ------- | ----------------------------------- | ----------- |
| prop | un key de `model`. En el uso del método validate and resetFields, el atributo es obligatorio. | string | keys of model that passed to `form` | |
| label | etiqueta | string | — | — |
| label-width | ancho de la etiqueta, e.g. '50px' | string | — | — |
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| required | si el campo es obligatorio o no, estará determinado por las reglas de validación si se omite. | boolean | — | false |
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| rules | reglas de validacion del form | object | — | — |
| error | mensaje de error de campo, establezca su valor y el campo validará el error y mostrará este mensaje inmediatamente. | string | — | — |
| show-message | si mostrar o no el mensaje de error | boolean | — | true |
| inline-message | mensaje de validación estilo inline | boolean | — | false |
| size | Tamaño de los componentes en este form item | string | medium / small / mini | - |
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### Form-Item Slot
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| Nombre | Descripción |
| ------ | ------------------------ |
| — | contenido del Form Item |
| label | contenido de la etiqueta |
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### Form-Item Metodo
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| Metodo | Descripción | Parametros |
| ---------- | ---------------------------------------- | ---------- |
| resetField | restablecer campo actual y eliminar resultado de validación | — |
| clearValidate | elimina el estado de la validacion de un campo | - |