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【下拉组件】分组功能
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‎src/components/select/demos/group.md‎

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---
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order: 2
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title: 分组下拉基本使用
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desc: 基本使用
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---
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```jsx
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/**
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* title: 分组下拉基本使用
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* desc: 基本使用
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*/
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import React, { useState } from 'react';
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import { Select } from 'cloud-react';
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const Option = Select.Option;
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const dataList = [
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{
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"label":"淘宝",
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"value":"taobao",
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"options":[
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{
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"label":"淘宝店",
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"value":11
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},
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{
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"label":"天猫店",
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"value":10
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}
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]
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},
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{
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"label":"京东",
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"value":"jos",
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"options":[
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{
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"label":"自营店",
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"value":20
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},
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{
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"label":"非自营店",
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"value":21
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}
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]
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}
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];
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export default function SelectDemo() {
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const [ value, setValue] = useState(20);
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const handleChange = (value, prevValue) => {
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console.log('select --- ' + value);
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console.log('prevSelect --- ' + prevValue);
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setValue(value)
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};
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return (
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<div className="demo">
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<Select
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value={value}
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onChange={handleChange}
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style={{ width: 120 }}
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dataSource={dataList}
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/>
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</div>
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);
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}
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```

‎src/components/select/demos/group2.md‎

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---
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order: 2
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title: 分组下拉基本使用
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desc: 基本使用
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---
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```jsx
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/**
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* title: 分组下拉基本使用 - 2
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* desc: 基本使用
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*/
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import React, { useState } from 'react';
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import { Select } from 'cloud-react';
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const Option = Select.Option;
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export default function Group2() {
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const handleChange = (value, prevValue) => {
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console.log('select --- ' + value);
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console.log('prevSelect --- ' + prevValue);
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};
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return (
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<div className="demo">
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<Select
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defaultValue={'3'}
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onChange={handleChange}
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style={{ width: 120 }}
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>
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<Option value="1">单选文字1</Option>
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<Option value="2">单选文字2</Option>
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<Option type="divider" value="5"/>
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<Option value="3">单选文字3</Option>
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<Option value="4">单选文字4</Option>
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</Select>
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</div>
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);
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}
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```

‎src/components/select/demos/groupSearch.md‎

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---
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order: 2
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title: 分组下拉基本使用
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desc: 基本使用
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---
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```jsx
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/**
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* title: 分组下拉基本使用 - 3
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* desc: 添加搜索功能,清空选中项目，部分可选项目不可选中
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*/
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import React, { useState } from 'react';
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import { Select } from 'cloud-react';
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const Option = Select.Option;
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const dataList = [
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{
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label: '淘宝',
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value: '1',
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options: [
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{
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label: '淘宝(A)',
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value: '11',
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disabled: true
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},{
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label: '淘宝(B)',
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value: '12',
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},{
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label: '淘宝(C)',
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value: '13'
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},
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],
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},
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{
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label: '京东',
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value: '2',
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options: [
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{
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label: '自营店',
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value: '21',
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},{
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label: '非自营店',
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value: '22',
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}
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],
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}
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];
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export default function SelectDemo() {
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const handleChange = (value, prevValue) => {
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console.log('select --- ' + value);
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console.log('prevSelect --- ' + prevValue);
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};
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return (
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<div className="demo">
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<Select
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defaultValue={'3'}
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onChange={handleChange}
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style={{ width: 120 }}
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dataSource={dataList}
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searchable
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allowClear
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/>
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</div>
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);
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}
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```

‎src/components/select/index.js‎

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@@ -8,21 +8,33 @@ import { flat, noop } from '@utils';
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import ContextProvider from '@contexts/context-provider';
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import SingleSelect from './views/single-select';
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import MultiSelect from './views/multi-select';
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import GroupSelect from './views/group-select';
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import Selected from './views/selected';
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import Option from './views/option';
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import { selector } from './views/common';
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import { formatOptionSource } from './utils';
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import { formatOptionSource, isGroupSelectPicker } from './utils';
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import './index.less';
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const getSelected = (data, children) => {
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const getSelected = (data, children, dataSource) => {
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const options = Array.isArray(data) ? data : [ data ];
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if (!options.length) return [];
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const selected = Children.map(children, (child) => {
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const { children: label, value } = child.props;
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return options.includes(value) ? { label, value } : null;
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});
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let selected = [];
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if (isGroupSelectPicker(dataSource)) {
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const groupOptionData = dataSource.map((x) => x.options).flat();
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groupOptionData.forEach((x) => {
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const { label, value } = x;
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if (options.includes(value)) {
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selected.push({ label, value });
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}
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});
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} else {
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selected = Children.map(children, (child) => {
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const { children: label, value } = child.props;
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return options.includes(value) ? { label, value } : null;
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});
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}
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return selected;
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};
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props.supportLightText,
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props.lightTextColor,
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);
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const selected = getSelected(displayValue, source);
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const selected = getSelected(displayValue, source, dataSource);
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const emptyValue = multiple ? [] : '';
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const currentValue = displayValue !== null ? displayValue : emptyValue;
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return {
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if (childs.length) return childs;
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if (isGroupSelectPicker(dataSource)) {
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return this.getGroupOptions();
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}
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return getOptions(
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dataSource,
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labelKey,
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return ele.getBoundingClientRect();
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}
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getGroupOptions = () => {
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const {
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dataSource, labelKey, valueKey, isSupportTitle,
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} = this.props;
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return dataSource.map((group) => {
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const groupItem = getOptions(
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group.options || [],
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labelKey,
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valueKey,
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isSupportTitle,
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);
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return (
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<div>
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<p className="groupName">{group.label}</p>
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{groupItem}
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</div>
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);
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});
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};
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positionPop = () => {
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const {
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props: { isAppendToBody, position },
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};
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renderOptions() {
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const { multiple, confirmTemplate } = this.props;
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const { multiple, confirmTemplate, dataSource } = this.props;
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const { value } = this.state;
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if (multiple) {
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);
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}
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if (isGroupSelectPicker(dataSource)) {
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return (
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<GroupSelect
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{...this.props}
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value={value}
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dataSource={this.children}
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onChange={this.onSimpleOptionChange}
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/>
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);
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}
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return (
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<SingleSelect
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{...this.props}

‎src/components/select/index.less‎

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border-radius: 2px;
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padding: 8px 0;
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background: @color-white;
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.divider {
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height: 1px;
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background: @gray-4;
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margin-top: 8px;
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margin-bottom: 8px;
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}
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}
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.@{select-prefix-cls}-group-select-options {
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.groupName {
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color: rgba(0, 0, 0, 0.45);
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font-size: 12px;
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margin-left: 12px;
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margin-bottom: 8px;
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&:not(:first-child) {
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margin-top: 8px;
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}
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}
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}
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.@{select-prefix-cls}-select-options {

‎src/components/select/index.md‎

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path: /data
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---
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### 何时使用
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## 何时使用
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1. 弹出一个下拉菜单给用户选择操作，用于代替原生的选择器，或者需要一个更优雅的多选器时。
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2. 当选项少时（少于 5 项），建议直接将选项平铺，使用 Radio 是更好的选择。
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### API
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## API
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```html
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<Select>
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<Option value="React">React</Option>
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</Select>
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```
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## Props
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### Select Props
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| 属性 | 说明 | 类型 | 默认值 |
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| value | 默认使用此属性进行基本操作，选中 option 的值 | string \| number | - |
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| item | 当前选项的原始属性，包含 index 值 | object | - |
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| className | 该项 option 的类名 | string | - |
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| type | type枚举类型： `divider` 表示分割线 | String | '' |
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### 代码演示
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## 代码演示
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### 基础使用
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<embed src="@components/select/demos/basic.md" />
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### 大小
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<embed src="@components/select/demos/sizeSelect.md" />
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### 可搜索
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<embed src="@components/select/demos/searchable.md" />
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### 定制化选项
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<embed src="@components/select/demos/customItem.md" />
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### 不可用
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<embed src="@components/select/demos/disabled.md" />
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### 指定使用的键值
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<embed src="@components/select/demos/key.md" />
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### 触发方式
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<embed src="@components/select/demos/trigger.md" />
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### 分组
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<embed src="@components/select/demos/group.md" />
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### 分组 带分割线
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<embed src="@components/select/demos/group2.md" />
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### 分组可搜索
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<embed src="@components/select/demos/groupSearch.md" />

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