无法使用React/Typescript中的弹出模式更新单个搜索框

import React, { Component } from 'react';

class SearchComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      isPopupOpen: false,
      searchValue: ''
    };
  }

  handlePopupToggle = () => {
    this.setState({ isPopupOpen: !this.state.isPopupOpen });
  }

  handleSearchChange = (event) => {
    this.setState({ searchValue: event.target.value });
  }

  render() {
    const { isPopupOpen, searchValue } = this.state;

    return (
      <div>
        <input type="text" value={searchValue} onChange={this.handleSearchChange} />
        <button onClick={this.handlePopupToggle}>Toggle Popup</button>
        {isPopupOpen && (
          <div className="popup">
            <input type="text" value={searchValue} onChange={this.handleSearchChange} />
            {/* Other popup content */}
          </div>
        )}
      </div>
    );
  }
}

export default SearchComponent;