SelectUnstyled API

API reference docs for the React SelectUnstyled component. Learn about the props, CSS, and other APIs of this exported module.

Demos

For examples and details on the usage of this React component, visit the component demo pages:

Unstyled Select

Import

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

You can learn about the difference by reading this guide on minimizing bundle size.

The foundation for building custom-styled select components.

Props

Props of the native component are also available.

Name	Type	Default	Description
autoFocus	bool	false	If `true`, the select element is focused during the first mount
component	elementType		The component used for the root node. Either a string to use a HTML element or a component.
defaultListboxOpen	bool	false	If `true`, the select will be initially open.
defaultValue	any		The default selected value. Use when the component is not controlled.
disabled	bool	false	If `true`, the select is disabled.
getSerializedValue	func		A function to convert the currently selected value to a string. Used to set a value of a hidden input associated with the select, so that the selected value can be posted with a form.
listboxId	string		`id` attribute of the listbox element. Also used to derive the `id` attributes of options.
listboxOpen	bool	undefined	Controls the open state of the select's listbox.
multiple	bool	false	If `true`, selecting multiple values is allowed.
name	string		Name of the element. For example used by the server to identify the fields in form submits. If the name is provided, the component will render a hidden input element that can be submitted to a server.
onChange	func		Callback fired when an option is selected.
onListboxOpenChange	func		Callback fired when the component requests to be opened. Use in controlled mode (see listboxOpen).
optionStringifier	func	defaultOptionStringifier	A function used to convert the option label to a string. It's useful when labels are elements and need to be converted to plain text to enable navigation using character keys on a keyboard.
renderValue	func		Function that customizes the rendering of the selected value.
slotProps	{ listbox?: func \| object, popper?: func \| object, root?: func \| object }	{}	The props used for each slot inside the Input.
slots	{ listbox?: elementType, popper?: elementType, root?: elementType }	{}	The components used for each slot inside the Select. Either a string to use a HTML element or a component. See Slots API below for more details.
value	any		The selected value. Set to `null` to deselect all options.

The ref is forwarded to the root element.

Slots

To learn how to customize the slot, check out the Overriding component structure guide.

Name	Default class	Default HTML tag	Description
root	.MuiSelect-root	'button'	The component that renders the root.
listbox	.MuiSelect-listbox	'ul'	The component that renders the listbox.
popper	.MuiSelect-popper	PopperUnstyled	The component that renders the popper.

You can override the style of the component using one of these customization options:

With a global class name.
With a rule name as part of the component's styleOverrides property in a custom theme.