</> reset:
<T>(values?: T | ResetAction<T>, options?: Record<string, boolean>) => void
重置整个表单状态、字段引用和订阅。存在可选参数,允许部分表单状态重置。
属性
Reset
能够保留 formState。以下是您可以使用的选项
名称 | 类型 | 描述 |
---|---|---|
values | object | 一个可选对象,用于重置表单值,建议提供完整的 defaultValues(如果提供)。 |
keepErrors | boolean | 所有错误将保留。这不能保证在用户进一步操作后仍然如此。 |
keepDirty | boolean | DirtyFields 表单状态将保留,isDirty 将暂时保留为当前状态,直到用户进行进一步操作。重要:此 keep 选项不反映表单输入值,而只反映脏字段表单状态。 |
keepDirtyValues | boolean | DirtyFields 和 isDirty 将保留,只有非脏字段将更新为最新的重置值。 查看示例。重要:表单状态 dirtyFields 需要进行订阅。 |
keepValues | boolean | 表单输入值将保持不变。 |
keepDefaultValues | boolean | 保留通过 useForm 初始化的相同 defaultValues。
|
keepIsSubmitted | boolean | isSubmitted 状态将保持不变。 |
keepTouched | boolean | isTouched 状态将保持不变。 |
keepIsValid | boolean | isValid 将暂时保留为当前状态,直到用户进行进一步操作。 |
keepSubmitCount | boolean | submitCount 状态将保持不变。 |
规则
-
对于受控组件,您需要将
defaultValues
传递给useForm
才能reset
Controller
组件的值。 -
当
defaultValues
未传递给reset
API 时,将调用 HTML 原生 reset API 来恢复表单。 -
避免在
useForm
的useEffect
被调用之前调用reset
,因为useForm
的订阅需要在reset
可以发送信号以刷新表单状态更新之前准备就绪。 -
建议在提交后在
useEffect
中reset
。useEffect(() => {reset({data: "test",})}, [isSubmitSuccessful]) -
只要您在 useForm 中提供了
defaultValues
,就可以在没有参数的情况下运行reset
。reset(); // update form back to default valuesreset({ test: 'test' }); // update your defaultValues && form valuesreset(undefined, { keepDirtyValues: true }); // reset other form state but keep defaultValues and form values
示例
不受控
import { useForm } from "react-hook-form"interface UseFormInputs {firstName: stringlastName: string}export default function Form() {const {register,handleSubmit,reset,formState: { errors },} = useForm<UseFormInputs>()const onSubmit = (data: UseFormInputs) => {console.log(data)}return (<form onSubmit={handleSubmit(onSubmit)}><label>First name</label><input {...register("firstName", { required: true })} /><label>Last name</label><input {...register("lastName")} /><input type="submit" /><input type="reset" value="Standard Reset Field Values" /><inputtype="button"onClick={() => reset()}value="Custom Reset Field Values & Errors"/></form>)}
控制器
import React from "react"import { useForm, Controller } from "react-hook-form"import { TextField } from "@material-ui/core"interface IFormInputs {firstName: stringlastName: string}export default function App() {const { register, handleSubmit, reset, setValue, control } =useForm<IFormInputs>()const onSubmit = (data: IFormInputs) => console.log(data)return (<form onSubmit={handleSubmit(onSubmit)}><Controllerrender={({ field }) => <TextField {...field} />}name="firstName"control={control}rules={{ required: true }}defaultValue=""/><Controllerrender={({ field }) => <TextField {...field} />}name="lastName"control={control}defaultValue=""/><input type="submit" /><input type="button" onClick={reset} /><inputtype="button"onClick={() => {reset({firstName: "bill",lastName: "luo",})}}/></form>)}
提交并重置
import { useForm, useFieldArray, Controller } from "react-hook-form"function App() {const {register,handleSubmit,reset,formState,formState: { isSubmitSuccessful },} = useForm({ defaultValues: { something: "anything" } })const onSubmit = (data) => {// It's recommended to reset in useEffect as execution order matters// reset({ ...data })}React.useEffect(() => {if (formState.isSubmitSuccessful) {reset({ something: "" })}}, [formState, submittedData, reset])return (<form onSubmit={handleSubmit(onSubmit)}><input {...register("something")} /><input type="submit" /></form>)}
字段数组
import React, { useEffect } from "react"import { useForm, useFieldArray, Controller } from "react-hook-form"function App() {const { register, control, handleSubmit, reset } = useForm({defaultValues: {loadState: "unloaded",names: [{ firstName: "Bill", lastName: "Luo" }],},})const { fields, remove } = useFieldArray({control,name: "names",})useEffect(() => {reset({names: [{firstName: "Bob",lastName: "Actually",},{firstName: "Jane",lastName: "Actually",},],})}, [reset])const onSubmit = (data) => console.log("data", data)return (<form onSubmit={handleSubmit(onSubmit)}><ul>{fields.map((item, index) => (<li key={item.id}><input {...register(`names.${index}.firstName`)} /><Controllerrender={({ field }) => <input {...field} />}name={`names.${index}.lastName`}control={control}/><button type="button" onClick={() => remove(index)}>Delete</button></li>))}</ul><input type="submit" /></form>)}
视频
感谢您的支持
如果您发现 React Hook Form 在您的项目中很有用,请考虑为其加星并提供支持。