Dialog API

API documentation for the React Dialog component. Learn about the available props and the CSS API.

Import

import Dialog from '@mui/material/Dialog';
// or
import { Dialog } from '@mui/material';

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

Dialogs are overlaid modal paper based components with a backdrop.

Component name

The name MuiDialog can be used when providing default props or style overrides in the theme.

Props

Props of the Modal component are also available.

Name	Type	Default	Description
open^*	bool	false	If `true`, the component is shown.
aria-describedby	string		The id(s) of the element(s) that describe the dialog.
aria-labelledby	string		The id(s) of the element(s) that label the dialog.
BackdropComponent	elementType	styled(Backdrop, { name: 'MuiModal', slot: 'Backdrop', overridesResolver: (props, styles) => { return styles.backdrop; }, })({ zIndex: -1, })	Deprecated - Use `slots.backdrop` instead. While this prop currently works, it will be removed in the next major version. A backdrop component. This prop enables custom backdrop rendering.
children	node		Dialog children, usually the included sub-components.
classes	object		Override or extend the styles applied to the component. See CSS API below for more details.
disableEscapeKeyDown	bool	false	If `true`, hitting escape will not fire the `onClose` callback.
fullScreen	bool	false	If `true`, the dialog is full-screen.
fullWidth	bool	false	If `true`, the dialog stretches to `maxWidth`. Notice that the dialog width grow is limited by the default margin.
maxWidth	'xs' \| 'sm' \| 'md' \| 'lg' \| 'xl' \| false \| string	'sm'	Determine the max-width of the dialog. The dialog width grows with the size of the screen. Set to `false` to disable `maxWidth`.
onBackdropClick	func		Deprecated - Use the `onClose` prop with the `reason` argument to handle the `backdropClick` events. Callback fired when the backdrop is clicked.
onClose	func		Callback fired when the component requests to be closed. Signature: `function(event: object, reason: string) => void` event: The event source of the callback. reason: Can be: `"escapeKeyDown"`, `"backdropClick"`.
PaperComponent	elementType	Paper	The component used to render the body of the dialog.
PaperProps	object	{}	Props applied to the `Paper` element.
scroll	'body' \| 'paper'	'paper'	Determine the container for scrolling the dialog.
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.
TransitionComponent	elementType	Fade	The component used for the transition. Follow this guide to learn more about the requirements for this component.
transitionDuration	number \| { appear?: number, enter?: number, exit?: number }	{ enter: theme.transitions.duration.enteringScreen, exit: theme.transitions.duration.leavingScreen, }	The duration for the transition, in milliseconds. You may specify a single timeout for all transitions, or individually with an object.
TransitionProps	object		Props applied to the transition element. By default, the element is based on this `Transition` component.

The ref is forwarded to the root element.

Inheritance

While not explicitly documented above, the props of the Modal component are also available on Dialog. You can take advantage of this to target nested components.

CSS

Rule name	Global class	Description
root	.MuiDialog-root	Styles applied to the root element.
scrollPaper	.MuiDialog-scrollPaper	Styles applied to the container element if `scroll="paper"`.
scrollBody	.MuiDialog-scrollBody	Styles applied to the container element if `scroll="body"`.
container	.MuiDialog-container	Styles applied to the container element.
paper	.MuiDialog-paper	Styles applied to the Paper component.
paperScrollPaper	.MuiDialog-paperScrollPaper	Styles applied to the Paper component if `scroll="paper"`.
paperScrollBody	.MuiDialog-paperScrollBody	Styles applied to the Paper component if `scroll="body"`.
paperWidthFalse	.MuiDialog-paperWidthFalse	Styles applied to the Paper component if `maxWidth=false`.
paperWidthXs	.MuiDialog-paperWidthXs	Styles applied to the Paper component if `maxWidth="xs"`.
paperWidthSm	.MuiDialog-paperWidthSm	Styles applied to the Paper component if `maxWidth="sm"`.
paperWidthMd	.MuiDialog-paperWidthMd	Styles applied to the Paper component if `maxWidth="md"`.
paperWidthLg	.MuiDialog-paperWidthLg	Styles applied to the Paper component if `maxWidth="lg"`.
paperWidthXl	.MuiDialog-paperWidthXl	Styles applied to the Paper component if `maxWidth="xl"`.
paperFullWidth	.MuiDialog-paperFullWidth	Styles applied to the Paper component if `fullWidth={true}`.
paperFullScreen	.MuiDialog-paperFullScreen	Styles applied to the Paper component if `fullScreen={true}`.

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.

Demos

Dialog