Using a Reference to the Form Control Elements. #Get Form Control Elements By Their Names We can access the form controls by using the value in the element's name attribute, for example, in the following way: const handleSubmit = (event) => { event.preventDefault(); const emailI...
npm install react-hook-form Quickstart import{useForm}from'react-hook-form';functionApp(){const{register,handleSubmit,formState:{errors},}=useForm();return(<formonSubmit={handleSubmit((data)=>console.log(data))}><input{...register('firstName')}/><input{...register('lastName',{required:...
handleSubmit=e=>{ const {username}=this.state;if(username&&username.length>0){//调用父组件的onAddUser方法将值username传递给父组件this.props.onAddUser(this.state.username); } e.preventDefault(); }; selectHandle=(e)=>{//将当前选择的用户编号传给父组件this.props.onSetCurrentId(e.target.id)...
functionMyForm(){return(<form><label>Enter your name:<inputtype="text"/></label></form>)}constroot=ReactDOM.createRoot(document.getElementById('root'));root.render(<MyForm/>); Run Example » This will work as normal, the form will submit and the page will refresh. ...
}, [counter])// 登录functionhandleSubmit() {// form 是 FormInstance。// getFieldsValue - 获取一组字段名对应的值,会按照对应结构返回constformData = form.getFieldsValue();// 如果显示了“验证码”却没有输入,提示if(codeVisible && !formData.captcha)returnmessage.error('请输入验证码');// 登录...
import{Form,Button}from'antd';function MyForm(){const[form]=Form.useForm();const onFinish=(values)=>{//submit form data};return(<Form form={form}onFinish={onFinish}><Form.Item name="username"rules={[{required:true,message:'Please input your username!'}]}><Input placeholder="Username"...
1、HTML form action 先来看一段简单的代码 代码语言:javascript 复制 <form id="form"method="get">First name:<input type="text"value="Jake"name="fname">Last name:<input type="text"value="Ma"name="lname"><input type="submit"value="提交"></form> ...
They remember what you typed. You can then get their value usinga ref. For example, inonClickhandler of a button:(翻译:他们记得你输入的内容。然后,您可以使用ref获取其值。例如,在按钮的onClick处理程序中:) classFormextendsComponent{handleSubmitClick=()=>{constname=this._name.value;// do some...
FormEvent<HTMLFormElement>) => { // Prevent default browser page refresh. e.preventDefault(); // Get form data as an object. let data = Object.fromEntries(new FormData(e.currentTarget)); // Submit to your backend API... setSubmitted(data); }; return ( <Form onSubmit={onSubmit}> <...
npm install react-hook-form Quickstart import{useForm}from'react-hook-form';functionApp(){const{register,handleSubmit,formState:{errors},}=useForm();return(<formonSubmit={handleSubmit((data)=>console.log(data))}><input{...register('firstName')}/><input{...register('lastName',{required:...