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82 lines
2.5 KiB
Markdown
82 lines
2.5 KiB
Markdown
---
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order: 7
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title:
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zh-CN: 表单数据存储于上层组件
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en-US: Store Form Data into Upper Component
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---
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## zh-CN
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通过 `onFieldsChange` 和 `fields`，可以把表单的数据存储到上层组件或者 [Redux](https://github.com/reactjs/redux)、[dva](https://github.com/dvajs/dva) 中，更多可参考 [rc-field-form 示例](https://rc-field-form.react-component.now.sh/?selectedKind=rc-field-form&selectedStory=StateForm-redux&full=0&addons=1&stories=1&panelRight=0&addonPanel=storybook%2Factions%2Factions-panel)。
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**注意：** 将表单数据存储于外部容器[并非好的实践](https://github.com/reduxjs/redux/issues/1287#issuecomment-175351978)，如无必要请避免使用。
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## en-US
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We can store form data into upper component or [Redux](https://github.com/reactjs/redux) or [dva](https://github.com/dvajs/dva) by using `onFieldsChange` and `fields`, see more at this [rc-field-form demo](https://rc-field-form.react-component.now.sh/?selectedKind=rc-field-form&selectedStory=StateForm-redux&full=0&addons=1&stories=1&panelRight=0&addonPanel=storybook%2Factions%2Factions-panel).
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**Note:** Save Form data globally [is not a good practice](https://github.com/reduxjs/redux/issues/1287#issuecomment-175351978). You should avoid this if not necessary.
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```tsx
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import { Form, Input } from 'antd';
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import React, { useState } from 'react';
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interface FieldData {
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name: string | number | (string | number)[];
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value?: any;
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touched?: boolean;
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validating?: boolean;
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errors?: string[];
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}
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interface CustomizedFormProps {
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onChange: (fields: FieldData[]) => void;
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fields: FieldData[];
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}
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const CustomizedForm: React.FC<CustomizedFormProps> = ({ onChange, fields }) => (
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<Form
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name="global_state"
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layout="inline"
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fields={fields}
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onFieldsChange={(_, allFields) => {
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onChange(allFields);
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}}
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>
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<Form.Item
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name="username"
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label="Username"
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rules={[{ required: true, message: 'Username is required!' }]}
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>
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<Input />
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</Form.Item>
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</Form>
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);
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const App: React.FC = () => {
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const [fields, setFields] = useState<FieldData[]>([{ name: ['username'], value: 'Ant Design' }]);
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return (
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<>
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<CustomizedForm
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fields={fields}
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onChange={newFields => {
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setFields(newFields);
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}}
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/>
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<pre className="language-bash">{JSON.stringify(fields, null, 2)}</pre>
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</>
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);
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};
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export default App;
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```
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<style>
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#components-form-demo-global-state .language-bash {
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max-width: 400px;
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border-radius: 6px;
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margin-top: 24px;
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}
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</style>
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