我按照React Form教程创建了以下组件:
export default class SignInForm extends React.Component { constructor(props) { super(props) this.state = { email: '',password: '' } this.onEmailChange = this.onEmailChange.bind(this) this.onPasswordChange = this.onPasswordChange.bind(this) } onEmailChange(event) { this.setState({email: event.target.value}) } onPasswordChange(password) { this.setState({password: event.target.value}) } render() { return ( <form onSubmit={this.props.handleSubmit}> <div> <label>Email</label> <div> <input type="email" placeholder="you@gmail.com" onChange={this.onEmailChange} value={this.state.email} /> </div> </div> <div> <label>Password</label> <div> <input type="password" placeholder="Password" onChange={this.onPasswordChange} value={this.state.password} /> </div> </div> <button type="submit" class="btn btn-primary">Submit</button> </form> ) } }
表单呈现后,我收到以下错误:
SignInForm is changing a controlled input of type password to be
uncontrolled. Input elements should not switch from controlled to
uncontrolled (or vice versa). Decide between using a controlled or
uncontrolled input element for the lifetime of the component
我找不到我把它变成一个不受控制的组件的地方.我究竟做错了什么?
看起来你的onPasswordChange方法应该是:
onPasswordChange(event) { this.setState({password: event.target.value}) }
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