Reactjs 触摸字段会导致钩形变脏
我对react钩子表单有一个问题,简单地“触摸”一个字段(点击它然后点击其他地方)就会导致formState.isDirty为真。我在这个代码沙盒中重现了这个问题: 我正在从服务器加载一条记录并调用reset(),以便将其视为新的基线,这可能是问题的原因。但是,作为一个动态表单,我需要从服务器检索要加载到表单中的对象,所以我看不出有什么办法可以解决这个问题。我只希望formState.isDirty保持为false,只要值没有实际更改 我自己只调用register('whatever')的更复杂的组件(如react select)没有这个问题,只有使用ref={register}的原生HTML输入才有这个问题Reactjs 触摸字段会导致钩形变脏,reactjs,react-hook-form,Reactjs,React Hook Form,我对react钩子表单有一个问题,简单地“触摸”一个字段(点击它然后点击其他地方)就会导致formState.isDirty为真。我在这个代码沙盒中重现了这个问题: 我正在从服务器加载一条记录并调用reset(),以便将其视为新的基线,这可能是问题的原因。但是,作为一个动态表单,我需要从服务器检索要加载到表单中的对象,所以我看不出有什么办法可以解决这个问题。我只希望formState.isDirty保持为false,只要值没有实际更改 我自己只调用register('whatever')的更复
import React, { useState, useEffect } from "react";
import "./styles.css";
import { useForm } from "react-hook-form";
import { yupResolver } from "@hookform/resolvers/yup";
import * as yup from "yup";
export default function App() {
interface MyObject {
testing: string;
id: number;
}
const blankObject: MyObject = {
testing: "Default value",
id: 0
};
const [obj, setObj] = useState(blankObject);
const schema = yup.object().shape({
testing: yup.string().max(40)
});
const { register, handleSubmit, formState, reset, errors } = useForm<
MyObject
>({
resolver: yupResolver(schema),
defaultValues: blankObject
});
useEffect(() => {
setTimeout(() => {
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
setObj(newObj);
reset(newObj);
}, 2000);
}, [reset]);
const onSubmit = (data: MyObject) => {
alert(JSON.stringify(data));
};
const onReset = () => {
reset();
};
return (
<form onSubmit={handleSubmit(onSubmit)}>
{obj.id === 0 ? (
<p>Please wait...</p>
) : (
<div>
<p>ID: {obj.id}</p>
<label>Enter text: </label>
<input
type="text"
name="testing"
ref={register}
autoComplete="off"
style={{ width: "50%" }}
defaultValue={obj.testing}
/>
{errors.testing && (
<div style={{ color: "#ff0000" }}>{errors.testing?.message}</div>
)}
<pre>{JSON.stringify(formState, null, 2)}</pre>
<input type="submit" />
<input type="button" value="reset" onClick={onReset} />
</div>
)}
</form>
);
}
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
import React,{useState,useffect}来自“React”;
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
导入“/styles.css”;
从“react hook form”导入{useForm};
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
从“@hookform/resolvers/yup”导入{yupResolver}”;
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
从“yup”导入*作为yup;
导出默认函数App(){
接口对象{
测试:字符串;
id:编号;
}
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
常量blankObject:MyObject={
测试:“默认值”,
身份证号码:0
};
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
const[obj,setObj]=使用状态(blankObject);
const schema=yup.object().shape({
测试:yup.string().max(40)
});
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
常量{register,handleSubmit,formState,reset,errors}=useForm<
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
肌体
>({
解析程序:yupResolver(模式),
默认值:blankObject
});
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
useffect(()=>{
设置超时(()=>{
常数newObj={
测试:“假装这来自服务器”,
身份证号码:123
};
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
setObj(newObj);
重置(newObj);
}, 2000);
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
},[reset]);
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
const onSubmit=(数据:MyObject)=>{
警报(JSON.stringify(数据));
};
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
常量onReset=()=>{
重置();
};
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
返回(
{obj.id==0(
请稍候
) : (
ID:{obj.ID}
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
输入文本:
{errors.testing&&(
{错误.测试?.message}
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
)}
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
{JSON.stringify(formState,null,2)}
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
)}
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
);
}
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
我可能可以去掉ref={register}并手动处理注册,但这样做似乎有点偏离了react hook表单的要点
const newObj = {
testing: "Pretend this came from the server",
id: 123
};
谢谢。React hook表单如何验证表单是否脏取决于深度比较
默认值
以下是示例的默认值
:(重置后)
但是,在钩子表单中没有注册的id
字段。因此,比较也将是不匹配的,因为缺少id
下面的示例可能会为您提供更好的上下文
如果我修改我的示例,将“defaultValues:blankObject”添加到useForm构造函数中,它仍然会通过聚焦和取消聚焦字段而导致表单变脏。@问题在于id
输入在哪里?我明白你的意思。德拉茨。我希望使用一个现有的对象接口(对于这个特殊的表单,它还有其他我想忽略的字段)。因此,我必须专门将我感兴趣的那些属性设置为默认值,并且无论何时调用reset?:-(我想你可以试着在useForm上设置shouldUnregister:false,它可能对你有效,那么id将是一个虚拟输入。是的。谢谢你的帮助。