mirror of
https://gitee.com/ant-design/ant-design.git
synced 2024-12-09 15:41:33 +08:00
74 lines
1.6 KiB
Markdown
74 lines
1.6 KiB
Markdown
---
|
|
order: 7
|
|
title:
|
|
zh-CN: 联动
|
|
en-US: coordinate
|
|
---
|
|
|
|
## zh-CN
|
|
|
|
省市联动是典型的例子。
|
|
|
|
推荐使用 [Cascader](/components/cascader/) 组件。
|
|
|
|
## en-US
|
|
|
|
Coordinating the selection of provinces and cities is a common use case and demonstrates how selection can be coordinated.
|
|
|
|
Using the [Cascader](/components/cascader) component is strongly recommended instead as it is more flexible and capable.
|
|
|
|
````jsx
|
|
import { Select } from 'antd';
|
|
|
|
const Option = Select.Option;
|
|
const provinceData = ['Zhejiang', 'Jiangsu'];
|
|
const cityData = {
|
|
Zhejiang: ['Hangzhou', 'Ningbo', 'Wenzhou'],
|
|
Jiangsu: ['Nanjing', 'Suzhou', 'Zhenjiang'],
|
|
};
|
|
|
|
class App extends React.Component {
|
|
state = {
|
|
cities: cityData[provinceData[0]],
|
|
secondCity: cityData[provinceData[0]][0],
|
|
}
|
|
|
|
handleProvinceChange = (value) => {
|
|
this.setState({
|
|
cities: cityData[value],
|
|
secondCity: cityData[value][0],
|
|
});
|
|
}
|
|
|
|
onSecondCityChange = (value) => {
|
|
this.setState({
|
|
secondCity: value,
|
|
});
|
|
}
|
|
|
|
render() {
|
|
const { cities } = this.state;
|
|
return (
|
|
<div>
|
|
<Select
|
|
defaultValue={provinceData[0]}
|
|
style={{ width: 120 }}
|
|
onChange={this.handleProvinceChange}
|
|
>
|
|
{provinceData.map(province => <Option key={province}>{province}</Option>)}
|
|
</Select>
|
|
<Select
|
|
style={{ width: 120 }}
|
|
value={this.state.secondCity}
|
|
onChange={this.onSecondCityChange}
|
|
>
|
|
{cities.map(city => <Option key={city}>{city}</Option>)}
|
|
</Select>
|
|
</div>
|
|
);
|
|
}
|
|
}
|
|
|
|
ReactDOM.render(<App />, mountNode);
|
|
````
|