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LinearProgress API

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

import LinearProgress from '@material-ui/core/LinearProgress';

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.

Props

Name Type Default Description
classes object Override or extend the styles applied to the component. See CSS API below for more details.
color enum: '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 enum: 'determinate' |
 'indeterminate' |
 'buffer' |
 '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 properties supplied will be provided to the root element (native element).

CSS

You can override all the class names injected by Material-UI thanks to the classes prop. This prop accepts the following keys:

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

Have a look at the overriding styles with classes section and the implementation of the component for more detail.

If using the overrides key of the theme, you need to use the following style sheet name: MuiLinearProgress.

Notes

The component is fully StrictMode compatible.

Demos