How to use react-hook-form with ant design or material UI

Question

I'm trying to use react-hook-form library to validate a form. When I render view using ant design or material UI, it does not work correctly.

<Input name="firstName" ref={register({ required: true })} />
  {errors.firstName && 'First name is required'}

Some warning happened: "Missing name at.....".

Answer 1

For Material-UI you can pass register through the TextField component prop inputRef (I'm also using Yup for validation schemas)

import React, { useState } from 'react';
import { Button, TextField } from '@material-ui/core';
import useForm from 'react-hook-form';
import { object, string } from 'yup';

const Form: React.FC = () => {
  const schema = object().shape({
    username: string().required('Username is required'),
    password: string().required('Password is required'),
  });
  const { register, handleSubmit, errors } = useForm({ validationSchema: schema });
  const onSubmit = (data: any) => {
    console.log(data);
  };

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <TextField
        name="username"
        error={!!errors.username}
        label="Username"
        helperText={errors.username ? errors.username.message : ''}
        type="email"
        inputRef={register}
        fullWidth
      />
      <TextField
        name="password"
        error={!!errors.password}
        label="Password"
        inputRef={register}
        helperText={errors.password ? errors.password.message : ''}
        type="password"
        fullWidth
      />

      <Button
        color="primary"
        type="submit"
        variant="contained"
        fullWidth
      >
        Submit
      </Button>
    </form>
  );
};

Answer 2

react hook form author here. React Hook Form embrace uncontrolled components and native inputs, however it's hard to avoid working with external controlled component such as React-Select, AntD and Material-UI. So I have built a wrapper component to help you integrate easier.

https://github.com/react-hook-form/react-hook-form-input

Ok you may wonder what’s the point of doing this, and what are you gettin out from react hook form with controlled components? Firstly, you still benefit from our in build validation or schema validation at your choice. Secondary this will improve your app or form performance by isolating your input state update to itself, which means ur form root can be resulted with 0 re-render even with controlled component.

Here is codesandbox example: https://codesandbox.io/s/react-hook-form-hookforminput-rzu9s

Hopefully those make sense and that extra component Which I have created helps you too.

On top this, i have also built a wrapper component to make things a bit easier:

import React from 'react';
import useForm from 'react-hook-form';
import { RHFInput } from 'react-hook-form-input';
import Select from 'react-select';

const options = [
  { value: 'chocolate', label: 'Chocolate' },
  { value: 'strawberry', label: 'Strawberry' },
  { value: 'vanilla', label: 'Vanilla' },
];

function App() {
  const { handleSubmit, register, setValue, reset } = useForm();

  return (
    <form onSubmit={handleSubmit(data => console.log(data))}>
      <RHFInput
        as={<Select options={options} />}
        rules={{ required: true }}
        name="reactSelect"
        register={register}
        setValue={setValue}
      />
      <button
        type="button"
        onClick={() => {
          reset({
            reactSelect: '',
          });
        }}
      >
        Reset Form
      </button>
      <button>submit</button>
    </form>
  );
}

https://github.com/react-hook-form/react-hook-form-input

---

update

React-hook-form v4, react-hook-form-input has been merged into the main repo and renamed to Controller.

https://react-hook-form.com/api#Controller