在我的下面组件中,在键入字符后,输入字段会失去焦点。使用Chrome Inspector时,看起来整个表单在键入时被重新渲染,而不仅仅是输入字段的值属性。
我从eslint和Chrome Inspector都没有收到错误。
提交表单本身正常工作,实际输入字段也正常工作,当它位于渲染的返回值中或作为单独组件导入时,但在下面所编码的方式中却不行。
为什么会这样? 主页面组件
我从eslint和Chrome Inspector都没有收到错误。
提交表单本身正常工作,实际输入字段也正常工作,当它位于渲染的返回值中或作为单独组件导入时,但在下面所编码的方式中却不行。
为什么会这样? 主页面组件
import React, { Component, PropTypes } from 'react';
import { connect } from 'react-redux';
import { bindActionCreators } from 'redux';
import * as actionPost from '../redux/action/actionPost';
import InputText from './form/InputText';
import InputSubmit from './form/InputSubmit';
class _PostSingle extends Component {
constructor(props, context) {
super(props, context);
this.state = {
post: {
title: '',
},
};
this.onChange = this.onChange.bind(this);
this.onSubmit = this.onSubmit.bind(this);
}
onChange(event) {
this.setState({
post: {
title: event.target.value,
},
});
}
onSubmit(event) {
event.preventDefault();
this.props.actions.postCreate(this.state.post);
this.setState({
post: {
title: '',
},
});
}
render() {
const onChange = this.onChange;
const onSubmit = this.onSubmit;
const valueTitle = this.state.post.title;
const FormPostSingle = () => (
<form onSubmit={onSubmit}>
<InputText name="title" label="Title" placeholder="Enter a title" onChange={onChange} value={valueTitle} />
<InputSubmit name="Save" />
</form>
);
return (
<main id="main" role="main">
<div className="container-fluid">
<FormPostSingle />
</div>
</main>
);
}
}
_PostSingle.propTypes = {
actions: PropTypes.objectOf(PropTypes.func).isRequired,
};
function mapStateToProps(state) {
return {
posts: state.posts,
};
}
function mapDispatchToProps(dispatch) {
return {
actions: bindActionCreators(actionPost, dispatch),
};
}
export default connect(mapStateToProps, mapDispatchToProps)(_PostSingle);
文本输入组件
import React, { PropTypes } from 'react';
const InputText = ({ name, label, placeholder, onChange, value, error }) => {
const fieldClass = 'form-control input-lg';
let wrapperClass = 'form-group';
if (error && error.length > 0) {
wrapperClass += ' has-error';
}
return (
<div className={wrapperClass}>
<label htmlFor={name} className="sr-only">{label}</label>
<input type="text" id={name} name={name} placeholder={placeholder} onChange={onChange} value={value} className={fieldClass} />
{error &&
<div className="alert alert-danger">{error}</div>
}
</div>
);
};
InputText.propTypes = {
name: PropTypes.string.isRequired,
label: PropTypes.string.isRequired,
placeholder: PropTypes.string.isRequired,
onChange: PropTypes.func.isRequired,
value: PropTypes.string,
error: PropTypes.string,
};
InputText.defaultProps = {
value: null,
error: null,
};
export default InputText;
提交按钮组件
import React, { PropTypes } from 'react';
const InputSubmit = ({ name }) => {
const fieldClass = 'btn btn-primary btn-lg';
return (
<input type="submit" value={name} className={fieldClass} />
);
};
InputSubmit.propTypes = {
name: PropTypes.string,
};
InputSubmit.defaultProps = {
name: 'Submit',
};
export default InputSubmit;