👀 Views: 35 💬 Answers: 1 📅 Created: 2025-06-11

react react-hook-form validation javascript

I'm trying to configure I've searched everywhere and can't find a clear answer. I'm working on a personal project and I'm working with an scenario with React Hook Form (version 7.0.0) while trying to validate a nested form structure using `useFormContext`. I have a parent component that wraps a nested form component, and I'm attempting to access the parent form context in the child component to validate fields. However, when I submit the form, the validation fails even though I can see the data is being handled correctly. The behavior I get is `TypeError: want to read properties of undefined (reading 'register')`. I've tried logging the context in the child component to ensure it's being passed down correctly, but it seems like the context is undefined. Here's the relevant code snippet from the parent component: ```javascript import { useForm, FormProvider } from 'react-hook-form'; import NestedForm from './NestedForm'; const ParentForm = () => { const methods = useForm(); return ( <FormProvider {...methods}> <form onSubmit={methods.handleSubmit(data => console.log(data))}> <NestedForm /> <button type="submit">Submit</button> </form> </FormProvider> ); }; ``` And here's the child component: ```javascript import { useFormContext } from 'react-hook-form'; const NestedForm = () => { const { register, formState: { errors } } = useFormContext(); return ( <div> <input {...register('nestedField', { required: true })} /> {errors.nestedField && <span>This field is required</span>} </div> ); }; ``` I've also looked at the documentation and tried restructuring the components in different ways, but nothing seems to allow the nested form to access the context properly. Any help would be greatly appreciated! Is there a specific pattern I might be overlooking that is causing the context to be `undefined`? This is part of a larger API I'm building. For context: I'm using Javascript on Linux. Any ideas what could be causing this? Thanks for taking the time to read this! For reference, this is a production microservice. Am I approaching this the right way?