Form Control

The Form Control component is a utility that lets you associate a form input with auxiliary components, such as labels, error indicators, or helper text.

FormControl API

Import

import { FormControl } from '@mui/base/FormControl';
// or
import { FormControl } from '@mui/base';

Learn about the difference by reading this guide on minimizing bundle size.

Props

Props of the native component are also available.

Name	Type	Default	Description
children	node \| func	-	The content of the component.
className	string	-	Class name applied to the root element.
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 is displayed in an error state.
onChange	func	-	Callback fired when the form element's value is modified.
required	bool	false	If `true`, the label will indicate that the `input` is required.
slotProps	{ root?: func \| object }	{}	The props used for each slot inside the FormControl.
slots	{ root?: elementType }	{}	The components used for each slot inside the FormControl. Either a string to use a HTML element or a component. See Slots API below for more details.
value	any	-	The value of the form element.

The ref is forwarded to the root element.

CSS classes

These class names are useful for styling with CSS. They are applied to the component's slots when specific states are triggered.

Class name	Description
.base--disabled	State class applied to the root element if `disabled={true}`.
.base--error	State class applied to the root element if `error={true}`.
.base--focused	State class applied to the root element if the inner input is focused.
.base--required	State class applied to the root element if `required={true}`.
.base-FormControl-filled	State class applied to the root element if the inner input has value.
.base-FormControl-root	Class applied to the root element.