In order to display the error from the server to your user, you need to use: setError to set the error programmatically when the server returns an error response. errors to get the error state of every fields in your form to display to the user. type FormInputs = { username: string; }; const { … Read more
const { register, handleSubmit, formState: { isSubmitting, isDirty, isValid } // here } = useForm({ mode: “onChange” }) <button type=”submit” disabled={!isDirty || !isValid} // here > Comment </button>
https://github.com/react-hook-form/react-hook-form/releases/tag/v7.16.0 V7.16.0 has introduced this new API for custom onChange. <input type=”text” {…register(‘test’, { onChange: (e) => {}, onBlur: (e) => {}, })} />
The accepted answer (probably) works for the bugged version of Autocomplete. I think the bug was fixed some time after that, so that the solution can be slightly simplified. This is very useful reference/codesandbox when working with react-hook-form and material-ui: https://codesandbox.io/s/react-hook-form-controller-601-j2df5? From the above link, I modified the Autocomplete example: import TextField from ‘@material-ui/core/TextField’; import … Read more
The problem is that during the first render, users is the useState hook’s initial value, which is null. The value only changes after the axios.get() request finishes, which is after the initial render. This means that the the default values passed to useForm is null. The documentation for defaultValues says the following: defaultValues are cached … Read more
Using Select component from Material UI with react hook form need you to implement custom logic with a Controller https://react-hook-form.com/api#Controller Here is a reusable component that will hopefully simplify the code to use that Select component in your app: import React from “react”; import FormControl from “@material-ui/core/FormControl”; import InputLabel from “@material-ui/core/InputLabel”; import Select from “@material-ui/core/Select”; … Read more
With react-hooks-form v7 import dependencies: import { Controller, useForm } from ‘react-hook-form’ import DatePicker from ‘react-datepicker’ add control to the useForm() hook: const { control, register, handleSubmit, … } = useForm() Add the Controller and DatePicker component: <Controller control={control} name=”date-input” render={({ field }) => ( <DatePicker placeholderText=”Select date” onChange={(date) => field.onChange(date)} selected={field.value} /> )} />
You ensured that the value property never had been undefined, but you had to do same for inputValue. the “value” state with the value/onChange props combination. This state represents the value selected by the user, for instance when pressing Enter. the “input value” state with the inputValue/onInputChange props combination. This state represents the value displayed … Read more
Welcome to StackOverflow @webcoder You are using the same hook instance for both forms. You will have to reuse with different names. import React from “react”; import ReactDOM from “react-dom”; import { useForm } from “react-hook-form”; import “./styles.css”; function App() { const { register, formState: { errors }, handleSubmit, } = useForm({ mode: “onBlur”, }); … Read more
react-hook-form updated to 7.0.0 from 6.X.X and has breaking changes: You have to replace all ref={register} with {…register(‘value_name’)} Example: Version 6.X.X: <input ref={register({ required: true })} name=”test” /> Version 7.0.X: <input {…register(‘test’, { required: true })} />