Kuk*_*Bra 3 forms validation styled-components next.js react-hook-form
我第一次使用react-hook-form。我正在阅读文档并遵循。同样,我已经布置了组件并设计了它们的样式。现在我试图在表单提交后提醒数据。
这是ContactForm
import React, { useState } from 'react';
import * as S from './style';
import { PrimaryButton } from '@element/Button';
import TextInput from '@element/TextInput';
import { useForm } from 'react-hook-form';
export const ContactForm = () => {
const { register, handleSubmit } = useForm();
const [firstName, setFirstName] = useState('');
const onSubmit = (data) => {
alert(JSON.stringify(data));
};
return (
<S.ContactFormWrapper onSubmit={handleSubmit(onSubmit)}>
<TextInput
name={'firstName'}
label={'First Name'}
state={firstName}
setState={setFirstName}
placeholder={'John'}
type={'text'}
width={'48%'}
options={{
maxLength: '20',
minLength: '2',
required: true,
}}
register={register}
/>
<PrimaryButton type={'submit'} text={'Send Message'} />
</S.ContactFormWrapper onSubmit={handleSubmit(onSubmit)}>
)
}
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这是我自定义创建的TextInput
import React, { useEffect, useState } from 'react';
import * as S from './style';
const TextInput = ({
name,
label,
placeholder,
state,
setState,
type,
width,
register,
options,
}) => {
const [isActive, setIsActive] = useState(false);
return (
<S.TextInputWrapper inputWidth={width}>
<S.Label htmlFor={name} isActive={isActive}>
{label}
</S.Label>
<S.Input
placeholder={placeholder}
type={type}
name={name}
id={name}
{...register(name, options)}
onChange={(event) => setState(event.target.value)}
onFocus={() => setIsActive(true)}
onBlur={() => setIsActive(false)}
/>
</S.TextInputWrapper>
);
};
export default TextInput;
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错误信息
TypeError: register is not a function {...register(name, options)}
我在 StackOverflow 上搜索了一篇文章,但答案让我感到困惑,而且发问者代码与我的有很大不同。因为我认为发生错误是因为我使用了样式组件,而且它嵌套得很深。我很困惑,因为我正在阅读文档并遵循。
如果我传播错误说,register is not a function否则如果我不传播它,那么错误是... spread is required.
希望你能为我的困惑带来光明。
亲切的问候库库
最简单的解决方案是利用 React hook 表单的上下文并使用useFormContext hook。
输入组件
import { useFormContext } from "react-hook-form";
const TextInput = ({ name, options }) => {
const { register } = useFormContext();
return (
<S.Input
name={name}
{...register(name, options)}
/>
</S.TextInputWrapper>
);
};
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register从父窗体中删除输入功能
export const ContactForm = () => {
...other functions
return <TextInput name={'firstName'} options={{maxLength: '20' }} />;
}
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一个更简单的解决方案是让react-hook-form控制表单值并使用useController钩子或Controller组件。
import { useController } from "react-hook-form";
const TextInput = ({ name, options }) => {
const { field } = useController({ name, rules: options });
return <S.Input name={name} {...field} />
};
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您还可以使用挂钩获取输入状态,useContoller以减少使用的事件数量。
import { useController } from "react-hook-form";
const TextInput = ({ name, options }) => {
const {
field,
fieldState: { error, invalid, isDirty, isTouched }
} = useController({ name, rules: options });
};
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