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Demo 有问题,会在 VSCode中 引用 `loadData`、`onChange` 时 会报错
57 lines
1.3 KiB
TypeScript
57 lines
1.3 KiB
TypeScript
import React, { useState } from 'react';
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import { Cascader } from 'antd';
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interface Option {
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value?: string | number | null;
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label: React.ReactNode;
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children?: Option[];
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isLeaf?: boolean;
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loading?: boolean;
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}
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const optionLists: Option[] = [
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{
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value: 'zhejiang',
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label: 'Zhejiang',
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isLeaf: false,
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},
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{
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value: 'jiangsu',
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label: 'Jiangsu',
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isLeaf: false,
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},
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];
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const App: React.FC = () => {
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const [options, setOptions] = useState<Option[]>(optionLists);
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const onChange = (value: (string | number)[], selectedOptions: Option[]) => {
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console.log(value, selectedOptions);
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};
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const loadData = (selectedOptions: Option[]) => {
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const targetOption = selectedOptions[selectedOptions.length - 1];
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targetOption.loading = true;
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// load options lazily
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setTimeout(() => {
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targetOption.loading = false;
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targetOption.children = [
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{
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label: `${targetOption.label} Dynamic 1`,
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value: 'dynamic1',
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},
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{
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label: `${targetOption.label} Dynamic 2`,
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value: 'dynamic2',
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},
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];
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setOptions([...options]);
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}, 1000);
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};
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return <Cascader options={options} loadData={loadData} onChange={onChange} changeOnSelect />;
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};
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export default App;
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