在React组件中,我有一个按钮,用于在单击时通过AJAX发送一些数据.我只需要第一次使用,即在第一次使用后禁用按钮.
我是如何做到这一点的:
var UploadArea = React.createClass({
getInitialState() {
return {
showUploadButton: true
};
},
disableUploadButton(callback) {
this.setState({ showUploadButton: false }, callback);
},
// This was simpler before I started trying everything I could think of
onClickUploadFile() {
if (!this.state.showUploadButton) {
return;
}
this.disableUploadButton(function() {
$.ajax({
[...]
});
});
},
render() {
var uploadButton;
if (this.state.showUploadButton) {
uploadButton = (
<button onClick={this.onClickUploadFile}>Send</button>
);
}
return (
<div>
{uploadButton}
</div>
);
}
});
我认为发生的情况是状态变量showUploadButton
没有立即更新,React文档说这是预期的.
我如何强制按钮在被点击的瞬间被禁用或完全消失?