reactjs - 需要使用react-hook-form获取三个Modal屏幕数据,试过useFormContext不成功
问题描述
我react-hook-form
在我的项目中使用表单数据处理。
我有一个create
具有三个模态屏幕的功能,我需要第三页提交的整个三个模态屏幕数据。我怎样才能得到这个?
我试过useFormContext
了,但它正在检索我最后三分之一的模态屏幕数据,而不是整个数据。
// Parent Component
const Parent = () => {
const [page, setPage] = useState(1);
const nextPage = () => setPage(page + 1);
const previousPage = () => setPage(page - 1);
const methods = useForm();
return (
<FormProvider {...methods}>
// after submitting 3 forms, I get 3rd form data here, below line
<form onSubmit={methods.handleSubmit(data => console.log(data))}>
{page === 1 && (
<CreateOne
nextPage={nextPage}
cancel={cancel}
/>
)}
{page === 2 && (
<CreateTwo
previousPage={previousPage}
nextPage={nextPage}
/>
)}
{page === 3 && (
<CreateThree
previousPage={previousPage}
cancel={cancel}
/>
)}
</form>
</FormProvider>
);
}
const CreateOne = ({ nextPage, cancel }) => {
const methods = useFormContext();
return (
<input ... ref={methods.register} />
<input ... ref={methods.register} />
<input ... ref={methods.register} />
<Button onClick={cancel} text="cancel" />
<Button type="submit" onClick={nextPage} text="next"/>
);
}
const CreateOTwo = ({previousPage, nextPage}) => {
const methods = useFormContext();
return (
<input ... ref={methods.register} />
<input ... ref={methods.register} />
<input ... ref={methods.register} />
<Button onClick={previousPage} text="previousPage" />
<Button type="submit" onClick={nextPage} text="next"/>
);
}
const CreateOThree = ({previousPage}) => {
const methods = useFormContext();
return (
<input ... ref={methods.register} />
<input ... ref={methods.register} />
<input ... ref={methods.register} />
<Button onClick={previousPage} text="previousPage" />
<Button type="submit" text="submit"/>
);
}
谁能帮我指点?如何获取 3 个模态屏幕数据?
解决方案
我解决了这个...在这里发布答案,这样它可以帮助其他人..
// Parent Component
const Parent = () => {
const [page, setPage] = useState(1);
const nextPage = () => setPage(page + 1);
const previousPage = () => setPage(page - 1);
const [finalObj, setFinalObj] = useState(null);
useEffect(() => {
// this if, checks and then once 3rd form form data is available, we call parent fn.
if (page === 3) {
CallParentWhichTriggeredThisModal(vendor);
}
}, [page]); // this useEffect hook gets called for each page state change, as we passed
//this as the second array of parameters.
const page1= (data) => {
setFinalObj((prevState) => ({ ...prevState, ...data }));
nextPage();
};
const page2= (data) => {
setFinalObj((prevState) => ({ ...prevState, ...data}));
nextPage();
};
const page3= async (data) => {
// this setState below is an asynchronous, so if you call your parent fn, just below this, // then you might lose the 3rd page data. to fix this, we used useEffect.
setFinalObj((prevState) => ({ ...prevState, ...data}));
};
return (
<>
{page === 1 && (
<CreateOne
nextPage={nextPage}
cancel={cancel}
submitForm={page1}
/>
)}
{page === 2 && (
<CreateTwo
previousPage={previousPage}
nextPage={nextPage}
submitForm={page2}
/>
)}
{page === 3 && (
<CreateThree
previousPage={previousPage}
cancel={cancel}
submitForm={page3}
/>
)}
</>
);
}
const CreateOne = ({ submitForm, nextPage, cancel }) => {
const methods = useFormContext();
const { register, handleSubmit } = useForm();
return (
<form onSubmit={handleSubmit(submitForm)}>
<input ... ref={register} />
<input ... ref={register} />
<input ... ref={register} />
<Button onClick={cancel} text="cancel" />
<Button type="submit" text="next"/>
</form>
);
}
const CreateOTwo = ({submitForm, previousPage, nextPage}) => {
const methods = useFormContext();
const { register, handleSubmit } = useForm();
return (
<form onSubmit={handleSubmit(submitForm)}>
<input ... ref={register} />
<input ... ref={register} />
<input ... ref={register} />
<Button onClick={cancel} text="cancel" />
<Button type="submit" text="next"/>
</form>
);
}
const CreateOThree = ({submitForm, previousPage}) => {
const methods = useFormContext();
const { register, handleSubmit } = useForm();
return (
<form onSubmit={handleSubmit(submitForm)}>
<input ... ref={register} />
<input ... ref={register} />
<input ... ref={register} />
<Button onClick={cancel} text="cancel" />
<Button type="submit" text="next"/>
</form>
);
}
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