ant-design/components/form/demo/global-state.md

order	title
7	[{zh-CN 表单数据存储于上层组件} {en-US Store Form Data into Upper Component}]

zh-CN

通过 onFieldsChange 和 fields，可以把表单的数据存储到上层组件或者 Redux、dva 中，更多可参考 rc-field-form 示例。

注意： 将表单数据存储于外部容器并非好的实践，如无必要请避免使用。

en-US

We can store form data into upper component or Redux or dva by using onFieldsChange and fields, see more at this rc-field-form demo.

Note: Save Form data globally is not a good practice. You should avoid this if not necessary.

import React, { useState } from 'react';
import { Form, Input } from 'antd';

interface FieldData {
  name: string | number | (string | number)[];
  value?: any;
  touched?: boolean;
  validating?: boolean;
  errors?: string[];
}

interface CustomizedFormProps {
  onChange: (fields: FieldData[]) => void;
  fields: FieldData[];
}

const CustomizedForm: React.FC<CustomizedFormProps> = ({ onChange, fields }) => (
  <Form
    name="global_state"
    layout="inline"
    fields={fields}
    onFieldsChange={(_, allFields) => {
      onChange(allFields);
    }}
  >
    <Form.Item
      name="username"
      label="Username"
      rules={[{ required: true, message: 'Username is required!' }]}
    >
      <Input />
    </Form.Item>
  </Form>
);

const Demo = () => {
  const [fields, setFields] = useState<FieldData[]>([{ name: ['username'], value: 'Ant Design' }]);

  return (
    <>
      <CustomizedForm
        fields={fields}
        onChange={newFields => {
          setFields(newFields);
        }}
      />
      <pre className="language-bash">{JSON.stringify(fields, null, 2)}</pre>
    </>
  );
};

export default Demo;