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

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

zh-CN

通过使用 onFieldsChange 与 mapPropsToFields，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-form 示例。

注意：mapPropsToFields 里面返回的表单域数据必须使用 Form.createFormField 包装。

en-US

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

Note: You must wrap field data with Form.createFormField in mapPropsToFields.

import { Form, Input } from 'antd';

const CustomizedForm = Form.create({
  name: 'global_state',
  onFieldsChange(props, changedFields) {
    props.onChange(changedFields);
  },
  mapPropsToFields(props) {
    return {
      username: Form.createFormField({
        ...props.username,
        value: props.username.value,
      }),
    };
  },
  onValuesChange(_, values) {
    console.log(values);
  },
})((props) => {
  const { getFieldDecorator } = props.form;
  return (
    <Form layout="inline">
      <Form.Item label="Username">
        {getFieldDecorator('username', {
          rules: [{ required: true, message: 'Username is required!' }],
        })(<Input />)}
      </Form.Item>
    </Form>
  );
});

class Demo extends React.Component {
  state = {
    fields: {
      username: {
        value: 'benjycui',
      },
    },
  };

  handleFormChange = (changedFields) => {
    this.setState(({ fields }) => ({
      fields: { ...fields, ...changedFields },
    }));
  }

  render() {
    const fields = this.state.fields;
    return (
      <div>
        <CustomizedForm {...fields} onChange={this.handleFormChange} />
        <pre className="language-bash">
          {JSON.stringify(fields, null, 2)}
        </pre>
      </div>
    );
  }
}

ReactDOM.render(<Demo />, mountNode);