[功能请求] 添加 dcc.Dropdown 选项分组

import React from "react"; import "../styles/sideBar.css"; import Select from 'react-select'

export default class SelectWrapper extends React.Component { constructor(props) { super(props); this.state = { value: this.props.options[0] }; this.handleChange = this.handleChange.bind(this); }

handleChange = selectedOption => { this.props.setProps({ value: selectedOption.value }); this.setState({ value: selectedOption }); };

render() { return <Select {...this.props} onChange={this.handleChange} value={this.props.value} /> } }

SelectWrapper.defaultProps = { clearable: true, disabled: false, multi: false, searchable: true, optionHeight: 35, persisted_props: ['value'], persistence_type: 'local', };

SelectWrapper.propTypes = { /**

• Select options */ options: PropTypes.array,

/**

• The value of the input. If multi is false (the default)
• then value is just a string that corresponds to the values
• provided in the options property. If multi is true, then
• multiple values can be selected at once, and value is an
• array of items with values corresponding to those in the
• options prop. */ value: PropTypes.oneOfType([ PropTypes.string, PropTypes.number, PropTypes.bool, PropTypes.arrayOf( PropTypes.oneOfType([ PropTypes.string,

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