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试图围绕将事件从容器传递给演示组件来包装头部。从容器传递给演示组件的ReactJs事件
据我所知我的情况下附连到表象/视图级别组件。但是我将功能从Container组件传递到了Presentational组件作为道具。我确保将我的函数绑定到这个,但是我得到了一个“无法读取属性”的未定义的“错误的鼠标输入处理程序”。
我怎么不能正常传递或结合这个功能呢?
class FeaturesContainer extends React.Component {
constructor(props) {
super(props);
this.state = {
hovered: false
}
this.onMouseEnterHandler = this.onMouseEnterHandler.bind(this);
}
onMouseEnterHandler() {
this.setState({
hovered: true
})
console.log('mouse enter, ' + this.state.hovered);
}
render() {
return(
<div className="page features" >
<ul className="features-list">
{data.features.map(function(obj, i) {
return (
<li key={i}>
<Feature {...obj} onMouseEnterHandler={this.onMouseEnterHandler} />
</li>
)
})}
</ul>
</div>
)
}
}
class Feature extends React.Component {
render() {
var bgImg = {
backgroundImage: 'url(' + this.props.img + ')'
};
return (
<div className="feature-container" onMouseEnter={this.props.onMouseEnterHandler}>
<div style={bgImg} className="feature-img"></div>
<div className="feature">
<h4 className="feature-issue">Issue {this.props.issue}</h4>
<h1 className="feature-title">{this.props.title}</h1>
<h4 className="feature-copy">{this.props.copy}</h4>
</div>
</div>
)
}
}