ReactJs 新手 - 我已经查看了文档 here和 here但我有点困惑。
所以我有一个组件可以根据 JSON 数据创建多个表行。
我试图做到这一点,以便一旦选择单选按钮,父级 <td>
的类就会显示出来。设置为“成功”。但目前该列的所有行都具有相同的类名。
var SearchResult = React.createClass({
getInitialState: function () {
return {
site: '',
address: '',
data: [],
checked: ''
};
},
onSiteChanged: function (e) {
this.setState({
site: e.currentTarget.value,
checked: 'success'
});
},
render: function () {
var resultRows = this.props.data.map(function (result) {
return (
<tr>
<td className={this.state.checked}>
<input type="radio" name="site_name"
value={result.SITE_NAME}
onChange={this.onSiteChanged}
key={result.id}/>{result.SITE_NAME}</td>
<td>
<input type="radio" name="address"
value={result.ADDRESS}
onChange={this.onAddressChanged} />{result.ADDRESS}</td>
</tr>
);
}, this);
return (
<table className="table table-hover table-condensed">
<thead>
<tr>
<th>Name</th>
<th>Address</th>
</tr>
</thead>
<tbody>
{resultRows}
</tbody>
<tfoot>
<tr>
<td></td>
<td>{this.state.site}</td>
<td>{this.state.address}</td>
</tr>
</tfoot>
</table>
);
}
});
确保所选结果获得所选类名的最佳 ReactJS 方法是什么? 谢谢。
最佳答案
要修改传递给 classSet 属性的值,React 有特殊的插件:React.addons.classSet 。当您更改多个不同的类时,它非常方便,但在您的情况下它也很有用:
var SearchResult = React.createClass({
getInitialState: function () {
return {
site: '',
address: '',
checked: false,
data: [],
};
},
onSiteChanged: function (selected) {
this.setState({
site: selected.SITE_NAME,
checked: selected.id,
});
},
render: function () {
var resultRows = this.props.data.map(function (result) {
var cx = React.addons.classSet({
success: (this.state.checked === result.id)
});
return (
<tr key={result.id}>
<td className={cx}>
<input type="radio" name="site_name"
value={result.SITE_NAME}
onChange={this.onSiteChanged.bind(this, result)}
/>{result.SITE_NAME}</td>
<td>
<input type="radio" name="address"
value={result.ADDRESS}
onChange={this.onAddressChanged} />{result.ADDRESS}</td>
</tr>
);
}, this);
return (
<table className="table table-hover table-condensed">
<thead>
<tr>
<th>Name</th>
<th>Address</th>
</tr>
</thead>
<tbody>
{resultRows}
</tbody>
<tfoot>
<tr>
<td></td>
<td>{this.state.site}</td>
<td>{this.state.address}</td>
</tr>
</tfoot>
</table>
);
}
});
关于javascript - 如何在ReactJS中为选定的子组件设置className,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27797529/