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1.6 KiB
1.6 KiB
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zh-CN
在实现全选效果时,你可能会用到 indeterminate
属性。
en-US
The indeterminate
property can help you to achieve a 'check all' effect.
import { Checkbox } from 'antd';
const CheckboxGroup = Checkbox.Group;
const plainOptions = ['Apple', 'Pear', 'Orange'];
const defaultCheckedList = ['Apple', 'Orange'];
class App extends React.Component {
state = {
checkedList: defaultCheckedList,
indeterminate: true,
checkAll: false,
};
onChange = checkedList => {
this.setState({
checkedList,
indeterminate: !!checkedList.length && checkedList.length < plainOptions.length,
checkAll: checkedList.length === plainOptions.length,
});
};
onCheckAllChange = e => {
this.setState({
checkedList: e.target.checked ? plainOptions : [],
indeterminate: false,
checkAll: e.target.checked,
});
};
render() {
return (
<>
<div className="site-checkbox-all-wrapper">
<Checkbox
indeterminate={this.state.indeterminate}
onChange={this.onCheckAllChange}
checked={this.state.checkAll}
>
Check all
</Checkbox>
</div>
<br />
<CheckboxGroup
options={plainOptions}
value={this.state.checkedList}
onChange={this.onChange}
/>
</>
);
}
}
ReactDOM.render(<App />, mountNode);
.site-checkbox-all-wrapper {
border-bottom: 1px solid #e9e9e9;
}