React components for efficiently rendering large lists and tabular data. Check out the demo for some examples. Join the official Slack chat at react-virtualized.now.sh.

Sponsors

The following wonderful companies have sponsored react-virtualized:

Learn more about becoming a sponsor!

A word about `react-window`

If you're considering adding react-virtualized to a project, take a look at react-window as a possible lighter-weight alternative. Learn more about how the two libraries compare here.

Getting started

Install react-virtualized using npm.

npm install react-virtualized --save

ES6, CommonJS, and UMD builds are available with each distribution. For example:

// Most of react-virtualized's styles are functional (eg position, size).
// Functional styles are applied directly to DOM elements.
// The Table component ships with a few presentational styles as well.
// They are optional, but if you want them you will need to also import the CSS file.
// This only needs to be done once; probably during your application's bootstrapping process.
import 'react-virtualized/styles.css'

// You can import any component you want as a named export from 'react-virtualized', eg
import { Column, Table } from 'react-virtualized'

// But if you only use a few react-virtualized components,
// And you're concerned about increasing your application's bundle size,
// You can directly import only the components you need, like so:
import AutoSizer from 'react-virtualized/dist/commonjs/AutoSizer'
import List from 'react-virtualized/dist/commonjs/List'

Note webpack 4 makes this optimization itself, see the documentation.

If the above syntax looks too cumbersome, or you import react-virtualized components from a lot of places, you can also configure a Webpack alias. For example:

// Partial webpack.config.js
{
  alias: {
    'react-virtualized/List': 'react-virtualized/dist/es/List',
  },
  ...rest
}

Then you can just import like so:

import List from 'react-virtualized/List';

// Now you can use <List {...props} />

You can also use a global-friendly UMD build:

<link rel="stylesheet" href="path-to-react-virtualized/styles.css">
<script src="path-to-react-virtualized/dist/umd/react-virtualized.js"></script>

Now you're ready to start using the components. You can learn more about which components react-virtualized has to offer below.

Dependencies

React Virtualized has very few dependencies and most are managed by NPM automatically. However the following peer dependencies must be specified by your project in order to avoid version conflicts: react, react-dom. NPM will not automatically install these for you but it will show you a warning message with instructions on how to install them.

Pure Components

By default all react-virtualized components use shallowCompare to avoid re-rendering unless props or state has changed. This occasionally confuses users when a collection's data changes (eg ['a','b','c'] => ['d','e','f']) but props do not (eg array.length).

The solution to this is to let react-virtualized know that something external has changed. This can be done a couple of different ways.

Pass-thru props

The shallowCompare method will detect changes to any props, even if they aren't declared as propTypes. This means you can also pass through additional properties that affect cell rendering to ensure changes are detected. For example, if you're using List to render a list of items that may be re-sorted after initial render- react-virtualized would not normally detect the sort operation because none of the properties it deals with change. However you can pass through the additional sort property to trigger a re-render. For example:

<List
  {...listProps}
  sortBy={sortBy}
/>

Public methods

Grid and Collection components can be forcefully re-rendered using forceUpdate. For Table and List, you'll need to call forceUpdateGrid to ensure that the inner Grid is also updated. For MultiGrid, you'll need to call forceUpdateGrids to ensure that the inner Grids are updated.

Documentation

API documentation available here.

There are also a couple of how-to guides:

Examples

Examples for each component can be seen in the documentation.

Here are some online demos of each component:

And here are some "recipe" type demos:

Supported Browsers

react-virtualized aims to support all evergreen browsers and recent mobile browsers for iOS and Android. IE 9+ is also supported (although IE 9 will require some user-defined, custom CSS since flexbox layout is not supported).

If you find a browser-specific problem, please report it along with a repro case. The easiest way to do this is probably by forking this Plunker.

Friends

Here are some great components built on top of react-virtualized:

react-infinite-calendar: Infinite scrolling date-picker with localization, themes, keyboard support, and more
react-sortable-hoc: Higher-order components to turn any list into an animated, touch-friendly, sortable list
react-sortable-tree: Drag-and-drop sortable representation of hierarchical data
react-virtualized-checkbox: Checkbox group component with virtualization for large number of options
react-virtualized-select: Drop-down menu for React with windowing to support large numbers of options.
react-vtree: Low-level tree component for React with virtualization to support large number of elements.
react-virtualized-tree: A reactive tree component that aims to render large sets of tree structured data in an elegant and performant way
react-timeline-9000: A calendar timeline component that is capable of displaying and interacting with a large number of items

Contributions

Use GitHub issues for requests.

I actively welcome pull requests; learn how to contribute.

Changelog

Changes are tracked in the changelog.

License

react-virtualized is available under the MIT License.

License

penyaev/react-virtualized

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