Dropdown onChange方法无法在fluentui/react-northstar中获取所选值

import React, { useState } from 'react';
import { Dropdown } from '@fluentui/react-northstar';

const MyDropdown = () => {
  const [selectedValue, setSelectedValue] = useState('');

  const handleDropdownChange = (e, { value }) => {
    setSelectedValue(value);
  };

  return (
    <Dropdown
      items={[
        { key: '1', header: 'Option 1', value: 'option1' },
        { key: '2', header: 'Option 2', value: 'option2' },
        { key: '3', header: 'Option 3', value: 'option3' },
      ]}
      onChange={handleDropdownChange}
      value={selectedValue}
    />
  );
};

export default MyDropdown;