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ant-design-vue/components/form/demo/custom-validation.vue

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<docs>
---
order: 1
title:
zh-CN: 自定义校验规则
en-US: Custom validation rules
---
## zh-CN
这个例子中展示了如何使用自定义验证规则来完成密码的二次验证本例还使用 `has-feedback` 属性为输入框添加了表示校验结果的反馈图标
更多高级用法可参考 [async-validator](https://github.com/yiminghe/async-validator)
## en-US
This example shows how to customize your own validation rules to finish a two-factor password verification.
You can use `has-feedback` to reflect validation result as an icon.
See more advanced usage at [async-validator](https://github.com/yiminghe/async-validator).
</docs>
<template>
<a-form
ref="formRef"
name="custom-validation"
:model="formState"
:rules="rules"
v-bind="layout"
@finish="handleFinish"
@validate="handleValidate"
@finishFailed="handleFinishFailed"
>
<a-form-item has-feedback label="Password" name="pass">
<a-input v-model:value="formState.pass" type="password" autocomplete="off" />
</a-form-item>
<a-form-item has-feedback label="Confirm" name="checkPass">
<a-input v-model:value="formState.checkPass" type="password" autocomplete="off" />
</a-form-item>
<a-form-item has-feedback label="Age" name="age">
<a-input-number v-model:value="formState.age" />
</a-form-item>
<a-form-item :wrapper-col="{ span: 14, offset: 4 }">
<a-button type="primary" html-type="submit">Submit</a-button>
<a-button style="margin-left: 10px" @click="resetForm">Reset</a-button>
</a-form-item>
</a-form>
</template>
<script lang="ts" setup>
import { reactive, ref } from 'vue';
import type { Rule } from 'ant-design-vue/es/form';
import type { FormInstance } from 'ant-design-vue';
interface FormState {
pass: string;
checkPass: string;
age: number | undefined;
}
const formRef = ref<FormInstance>();
const formState = reactive<FormState>({
pass: '',
checkPass: '',
age: undefined,
});
const checkAge = async (_rule: Rule, value: number) => {
if (!value) {
return Promise.reject('Please input the age');
}
if (!Number.isInteger(value)) {
return Promise.reject('Please input digits');
} else {
if (value < 18) {
return Promise.reject('Age must be greater than 18');
} else {
return Promise.resolve();
}
}
};
const validatePass = async (_rule: Rule, value: string) => {
if (value === '') {
return Promise.reject('Please input the password');
} else {
if (formState.checkPass !== '') {
formRef.value.validateFields('checkPass');
}
return Promise.resolve();
}
};
const validatePass2 = async (_rule: Rule, value: string) => {
if (value === '') {
return Promise.reject('Please input the password again');
} else if (value !== formState.pass) {
return Promise.reject("Two inputs don't match!");
} else {
return Promise.resolve();
}
};
const rules: Record<string, Rule[]> = {
pass: [{ required: true, validator: validatePass, trigger: 'change' }],
checkPass: [{ validator: validatePass2, trigger: 'change' }],
age: [{ validator: checkAge, trigger: 'change' }],
};
const layout = {
labelCol: { span: 4 },
wrapperCol: { span: 14 },
};
const handleFinish = (values: FormState) => {
console.log(values, formState);
};
const handleFinishFailed = errors => {
console.log(errors);
};
const resetForm = () => {
formRef.value.resetFields();
};
const handleValidate = (...args) => {
console.log(args);
};
</script>