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116 lines
2.8 KiB
Markdown
116 lines
2.8 KiB
Markdown
---
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order: 1
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title:
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zh-CN: 表单方法调用
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en-US: Form methods
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---
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## zh-CN
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通过 `Form.useForm` 对表单数据域进行交互。
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> 注意 `useForm` 是 [React Hooks](https://reactjs.org/docs/hooks-intro.html) 的实现，只能用于函数组件，class 组件请查看下面的例子。
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## en-US
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Call form method with `Form.useForm`.
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> Note that `useForm` is a [React Hooks](https://reactjs.org/docs/hooks-intro.html) that only works in functional component.
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```tsx
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import { Form, Input, Button, Select } from 'antd';
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const { Option } = Select;
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const layout = {
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labelCol: { span: 8 },
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wrapperCol: { span: 16 },
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};
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const tailLayout = {
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wrapperCol: { offset: 8, span: 16 },
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};
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const Demo = () => {
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const [form] = Form.useForm();
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const onGenderChange = value => {
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switch (value) {
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case 'male':
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form.setFieldsValue({ note: 'Hi, man!' });
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return;
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case 'female':
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form.setFieldsValue({ note: 'Hi, lady!' });
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return;
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case 'other':
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form.setFieldsValue({ note: 'Hi there!' });
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return;
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}
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};
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const onFinish = values => {
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console.log(values);
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};
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const onReset = () => {
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form.resetFields();
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};
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const onFill = () => {
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form.setFieldsValue({
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note: 'Hello world!',
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gender: 'male',
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});
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};
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return (
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<Form {...layout} form={form} name="control-hooks" onFinish={onFinish}>
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<Form.Item name="note" label="Note" rules={[{ required: true }]}>
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<Input />
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</Form.Item>
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<Form.Item name="gender" label="Gender" rules={[{ required: true }]}>
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<Select
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placeholder="Select a option and change input text above"
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onChange={onGenderChange}
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allowClear
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>
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<Option value="male">male</Option>
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<Option value="female">female</Option>
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<Option value="other">other</Option>
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</Select>
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</Form.Item>
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<Form.Item
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noStyle
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shouldUpdate={(prevValues, currentValues) => prevValues.gender !== currentValues.gender}
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>
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{({ getFieldValue }) => {
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return getFieldValue('gender') === 'other' ? (
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<Form.Item name="customizeGender" label="Customize Gender" rules={[{ required: true }]}>
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<Input />
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</Form.Item>
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) : null;
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}}
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</Form.Item>
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<Form.Item {...tailLayout}>
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<Button type="primary" htmlType="submit">
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Submit
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</Button>
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<Button htmlType="button" onClick={onReset}>
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Reset
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</Button>
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<Button type="link" htmlType="button" onClick={onFill}>
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Fill form
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</Button>
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</Form.Item>
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</Form>
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);
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};
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ReactDOM.render(<Demo />, mountNode);
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```
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```css
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#components-form-demo-control-hooks .ant-btn {
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margin-right: 8px;
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}
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```
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