LinearProgress API

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

Import

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

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

ARIA

If the progress bar is describing the loading progress of a particular region of a page, you should use aria-describedby to point to the progress bar, and set the aria-busy attribute to true on that region until it has finished loading.

Component name

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

Props

Name	Type	Default	Description
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.
value	number		The value of the progress indicator for the determinate and buffer variants. Value between 0 and 100.
valueBuffer	number		The value for the buffer variant. Value between 0 and 100.
variant	'buffer' | 'determinate' | 'indeterminate' | 'query'	'indeterminate'	The variant to use. Use indeterminate or query when there is no progress value.

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	.MuiLinearProgress-root	Styles applied to the root element.
colorPrimary	.MuiLinearProgress-colorPrimary	Styles applied to the root and bar2 element if color="primary"; bar2 if variant="buffer".
colorSecondary	.MuiLinearProgress-colorSecondary	Styles applied to the root and bar2 elements if color="secondary"; bar2 if variant="buffer".
determinate	.MuiLinearProgress-determinate	Styles applied to the root element if variant="determinate".
indeterminate	.MuiLinearProgress-indeterminate	Styles applied to the root element if variant="indeterminate".
buffer	.MuiLinearProgress-buffer	Styles applied to the root element if variant="buffer".
query	.MuiLinearProgress-query	Styles applied to the root element if variant="query".
dashed	.MuiLinearProgress-dashed	Styles applied to the additional bar element if variant="buffer".
dashedColorPrimary	.MuiLinearProgress-dashedColorPrimary	Styles applied to the additional bar element if variant="buffer" and color="primary".
dashedColorSecondary	.MuiLinearProgress-dashedColorSecondary	Styles applied to the additional bar element if variant="buffer" and color="secondary".
bar	.MuiLinearProgress-bar	Styles applied to the layered bar1 and bar2 elements.
barColorPrimary	.MuiLinearProgress-barColorPrimary	Styles applied to the bar elements if color="primary"; bar2 if variant not "buffer".
barColorSecondary	.MuiLinearProgress-barColorSecondary	Styles applied to the bar elements if color="secondary"; bar2 if variant not "buffer".
bar1Indeterminate	.MuiLinearProgress-bar1Indeterminate	Styles applied to the bar1 element if variant="indeterminate or query".
bar1Determinate	.MuiLinearProgress-bar1Determinate	Styles applied to the bar1 element if variant="determinate".
bar1Buffer	.MuiLinearProgress-bar1Buffer	Styles applied to the bar1 element if variant="buffer".
bar2Indeterminate	.MuiLinearProgress-bar2Indeterminate	Styles applied to the bar2 element if variant="indeterminate or query".
bar2Buffer	.MuiLinearProgress-bar2Buffer	Styles applied to the bar2 element if variant="buffer".

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

• Progress