嗨,使用下面的React应用程序,我需要管理一个表单来验证登录到一个页面,参数是邮箱和密码,但是当我执行代码时,会打印出以下错误,错误:第33行:'Form'未定义react/jsx-no-undef
Javascript代码:
import React, { Component } from 'react';
import { Button, FormGroup, FormControl, ControlLabel } from "react-bootstrap";
import logo from './logo.svg';
import './Home.css';
class Home extends Component {
constructor(props) {
super(props);
this.state = {
email: "",
password: ""
};
}
validateForm() {
return this.state.email.length > 0 && this.state.password.length > 0;
}
handleChange = event => {
this.setState({
[event.target.id]: event.target.value
});
}
handleSubmit = event => {
event.preventDefault();
}
render() {
return (
<div className="Login">
<Form onSubmit={this.handleSubmit}>
<Form.Group controlId="email" bsSize="large">
<Form.Control
autoFocus
type="email"
value={this.state.email}
onChange={this.handleChange}
/>
</Form.Group>
<Form.Group controlId="password" bsSize="large">
<Form.Control
value={this.state.password}
onChange={this.handleChange}
type="password"
/>
</Form.Group>
<Button
block
bsSize="large"
disabled={!this.validateForm()}
type="submit"
>
登录
</Button>
</Form>
</div>
);
}
}
export default Home;
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似乎你忘记导入
Form,只需添加它:import { Form, Button, FormGroup, FormControl, ControlLabel } from "react-bootstrap";