Question

我想进行一次重置以刷新输入的状态。我在网上进行了13次测试：this.messageForm.reset()，但出现的错误并非函数

import React, {Component} from 'react'
import {Form, Button} from 'reactstrap'


export default class Formulaire extends Component {

createMessage = event => {
    event.preventDefault()
    console.log(this.message.value)
    const message = this.message.value
    this.props.addMessage(message)
    //reset
    this.messageForm.reset()
}
render() {
    return (
        <div>
            <Form 
                className='form' 
                onSubmit={event =>this.createMessage(event)}
                ref={input => this.messageForm = input}
                >
                <textarea 
                    required 
                    maxLength='140'
                    ref={input => this.message = input}
                >

                </textarea>
                <Button type="submit"> Envoyer! </Button>
            </Form>
        </div>

    )
}
}

Answer 1

问题在于您的<Form>不是HTML表单元素，而是reactstrap Form component，因此，它没有.reset()方法。

Reactstrap允许设置innerRef属性来访问实际的DOM元素：

<Form 
  className='form' 
  onSubmit={event =>this.createMessage(event)}
  innerRef={input => this.messageForm = input}
>

如何为刷新组件进行React重置

1 个答案: