FormControl API

The API documentation of the FormControl React component. Learn more about the props and the CSS customization points.

Import

import FormControl from '@material-ui/core/FormControl';
// or
import { FormControl } from '@material-ui/core';

You can learn more about the difference by reading this guide.

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 input can be used within a FormControl.

Component name

The MuiFormControl name can be used for providing default props or style overrides at the theme level.

Props

Name	Type	Default	Description
children	node		The contents of the form control.
classes	object		Override or extend the styles applied to the component. See CSS API below for more details.
color	'primary' | 'secondary'	'primary'	The color of the component. It supports those theme colors that make sense for this component.
component	elementType	'div'	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		If true, the component will be 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 will be 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'		The size of the text field.
variant	'filled' | 'outlined' | 'standard'	'standard'	The variant to use.

The ref is forwarded to the root element.

Any other props supplied will be provided to the root element (native element).

CSS

Rule name	Global class	Description
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}.

You can override the style of the component thanks to one of these customization points:

• With a rule name of the classes object prop.
• With a global class name.
• With a theme and an overrides property.

If that's not sufficient, you can check the implementation of the component for more detail.

Demos

• Checkboxes
• Radio Buttons
• Switches
• Text Fields