FormControl API
想要学习更多组件属性和 CSS API，可以查阅 React FormControl 组件的 API 文档。
导入
import FormControl from '@mui/material/FormControl';
// 或
import { FormControl } from '@mui/material';Provides context such as filled/focused/error/required for form inputs.
Relying on the context provides high flexibility and ensures that the state always stays
consistent across the children of the FormControl.
This context is used by the following components:
- FormLabel
- FormHelperText
- Input
- InputLabel
You can find one composition example below and more going to the demos.
<FormControl>
<InputLabel htmlFor="my-input">Email address</InputLabel>
<Input id="my-input" aria-describedby="my-helper-text" />
<FormHelperText id="my-helper-text">We'll never share your email.</FormHelperText>
</FormControl>
⚠️ Only one InputBase can be used within a FormControl because it create visual inconsistencies.
For instance, only one input can be focused at the same time, the state shouldn't be shared.
组件名称
The nameMuiFormControl can be used when providing default props or style overrides in the theme.属性
原生（Native） 组件的属性也是可用的。
| 名称 | 类型 | 默认值 | 描述 |
|---|---|---|---|
| children | node | The content of the component. | |
| classes | object | Override or extend the styles applied to the component. See CSS API below for more details. | |
| color | 'primary' | 'secondary' | 'error' | 'info' | 'success' | 'warning' | string | 'primary' | The color of the component. It supports both default and custom theme colors, which can be added as shown in the palette customization guide. |
| component | elementType | The component used for the root node. Either a string to use a HTML element or a component. | |
| disabled | bool | false | If true, the label, input and helper text should be displayed in a disabled state. |
| error | bool | false | If true, the label should be displayed in an error state. |
| focused | bool | false | If true, the component is displayed in focused state. |
| fullWidth | bool | false | If true, the component will take up the full width of its container. |
| hiddenLabel | bool | false | If true, the label is hidden. This is used to increase density for a FilledInput. Be sure to add aria-label to the input element. |
| margin | 'dense' | 'none' | 'normal' | 'none' | If dense or normal, will adjust vertical spacing of this and contained components. |
| required | bool | false | If true, the label will indicate that the input is required. |
| size | 'medium' | 'small' | string | 'medium' | The size of the autocomplete. |
| sx | Array<func | object | bool> | func | object | The system prop that allows defining system overrides as well as additional CSS styles. See the `sx` page for more details. | |
| variant | 'filled' | 'outlined' | 'standard' | 'outlined' | The variant to use. |
ref 则会被传递到根元素中。CSS
| 规则名称 | 全局类名 | 描述 |
|---|---|---|
| root | .MuiFormControl-root | Styles applied to the root element. |
| marginNormal | .MuiFormControl-marginNormal | Styles applied to the root element if margin="normal". |
| marginDense | .MuiFormControl-marginDense | Styles applied to the root element if margin="dense". |
| fullWidth | .MuiFormControl-fullWidth | Styles applied to the root element if fullWidth={true}. |
您可以使用组件自定义选项对组件进行个性化：
- With a global class name.
- With a rule name as part of the component's
styleOverridesproperty in a custom theme.