ant design 下拉框多选没有效果

Question

使用React的ant design的下拉框，按照官网的doc，没有多选的效果，求助怎么解决。

<Select
    multiple
    showSearch
    onSelect={(val,e) => this.setState({xyCode:e.props.code})}
    onSearch={val => this.getXY(val)}
>
    {this.state.xyData.map(d => <Option code={d.departmentNumber} key={d.departmentName}>{d.departmentName}</Option>)}
</Select>

Answer 1

2.9版本以后就不支持multiple属性了。仔细阅读文档api

<Select
    mode='multiple'
    showSearch
    onSelect={(val,e) => this.setState({xyCode:e.props.code})}
    onSearch={val => this.getXY(val)}
>
    {this.state.xyData.map(d => <Option code={d.departmentNumber} key={d.departmentName}>{d.departmentName}</Option>)}
</Select>