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## zh-CN
这里演示 `Form.Item` 内有多个元素的使用方式。`< Form.Item name = "field" /> ` 只会对它的直接子元素绑定表单功能,例如直接包裹了 Input/Select。如果控件前后还有一些文案或样式装点, 或者一个表单项内有多个控件, 你可以使用内嵌的 `Form.Item` 完成。你可以给 `Form.Item` 自定义 `style` 进行内联布局,或者添加 `noStyle` 作为纯粹的无样式绑定组件(类似 3.x 中的 `getFieldDecorator` )。
```diff
- < Form.Item label = "Field" name = "field" >
- < Input />
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- </ Form.Item >
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+ < Form.Item label = "Field" >
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+ < Form.Item name = "field" noStyle > < Input / > < / Form.Item > // 直接包裹才会绑定表单
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+ < span > description< / span >
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+ < / Form.Item >
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```
这里展示了三种典型场景:
- `Username` :输入框后面有描述文案或其他组件,在 `Form.Item` 内使用 `<Form.Item name="field" noStyle />` 去绑定对应子控件。
- `Address` :有两个控件,在 `Form.Item` 内使用两个 `<Form.Item name="field" noStyle />` 分别绑定对应控件。
- `BirthDate` :有两个内联控件,错误信息展示各自控件下,使用两个 `<Form.Item name="field" />` 分别绑定对应控件,并修改 `style` 使其内联布局。
> 注意,在 label 对应的 Form.Item 上不要在指定 `name` 属性,这个 Item 只作为布局作用。
更复杂的封装复用方式可以参考下面的 `自定义表单控件` 演示。
## en-US
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This demo shows how to use `Form.Item` with multiple controls. `<Form.Item name="field" />` will only bind the control(Input/Select) which is the only children of it. Imagine this case: you added some text description after the Input, then you have to wrap the Input by an extra `<Form.Item name="field">` . `style` property of `Form.Item` could be useful to modify the nested form item layout, or use `<Form.Item noStyle />` to turn it into a pure form-binded component(like `getFieldDecorator` in 3.x).
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```diff
- < Form.Item label = "Field" name = "field" >
- < Input />
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- </ Form.Item >
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+ < Form.Item label = "Field" >
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+ < Form.Item name = "field" noStyle > < Input / > < / Form.Item > // that will bind input
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+ < span > description< / span >
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+ < / Form.Item >
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```
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This demo shows three typical usages:
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- `Username` : extra elements after control, using `<Form.Item name="field" noStyle />` inside `Form.Item` to bind Input.
- `Address` : two controls in one line, using two `<Form.Item name="field" noStyle />` to bind each control.
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- `BirthDate` : two controls in one line with independent error message, using two `<Form.Item name="field" noStyle />` to bind each control, make layout inline by customizing `style` property.
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> Note that, in this case, no more `name` property should be left in Form.Item with label.
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See the `Customized Form Controls` demo below for more advanced usage.