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* Update dynamic-form-items.md
原来的代码只有在使用Space包裹多个Form.Item的时候可以跑起来，如果把Space换成div或者其它组件，点击Add Field之后，因为多个Form.Item 通过 {...restField} 指定了相同的key，浏览器会报 Encountered two children with the same key, `0`. Keys should be unique so that components maintain their identity across updates.
换成这种restField的写法可以避免这个问题，让不使用Space包裹多个Form.Item的场景也能跑通不报错。
* Update components/form/demo/dynamic-form-items.md
Co-authored-by: afc163 <afc163@gmail.com>
Co-authored-by: afc163 <afc163@gmail.com>
2.0 KiB
2.0 KiB
| order | title | ||||
|---|---|---|---|---|---|
| 4.1 |
|
zh-CN
嵌套表单字段需要对 field 进行拓展，将 field.name 和 field.fieldKey 应用于控制字段。
en-US
Nest dynamic field need extends field. Pass field.name and field.fieldKey to nest item.
import { Form, Input, Button, Space } from 'antd';
import { MinusCircleOutlined, PlusOutlined } from '@ant-design/icons';
const Demo = () => {
const onFinish = values => {
console.log('Received values of form:', values);
};
return (
<Form name="dynamic_form_nest_item" onFinish={onFinish} autoComplete="off">
<Form.List name="users">
{(fields, { add, remove }) => (
<>
{fields.map(({ key, name, fieldKey, ...restField }) => (
<Space key={key} style={{ display: 'flex', marginBottom: 8 }} align="baseline">
<Form.Item
{...restField}
name={[name, 'first']}
fieldKey={[fieldKey, 'first']}
rules={[{ required: true, message: 'Missing first name' }]}
>
<Input placeholder="First Name" />
</Form.Item>
<Form.Item
{...restField}
name={[name, 'last']}
fieldKey={[fieldKey, 'last']}
rules={[{ required: true, message: 'Missing last name' }]}
>
<Input placeholder="Last Name" />
</Form.Item>
<MinusCircleOutlined onClick={() => remove(name)} />
</Space>
))}
<Form.Item>
<Button type="dashed" onClick={() => add()} block icon={<PlusOutlined />}>
Add field
</Button>
</Form.Item>
</>
)}
</Form.List>
<Form.Item>
<Button type="primary" htmlType="submit">
Submit
</Button>
</Form.Item>
</Form>
);
};
ReactDOM.render(<Demo />, mountNode);