Table Virtuoso API Reference
All properties are optional - by default, the component will render empty.
If you are using TypeScript and want to use correctly typed component ref
, you can use the VirtuosoHandle
.
import { TableVirtuoso, VirtuosoHandle } from 'react-virtuoso'
//...
const ref = useRef<VirtuosoHandle>(null)
//...
<TableVirtuoso ref={ref} /*...*/
Read-onlyTable Virtuoso Properties
Type parameters
Name |
---|
D |
C |
Hierarchy
Omit
<VirtuosoProps
<D
,C
>,"components"
|"headerFooterTag"
|"topItemCount"
>↳
TableVirtuosoProps
Properties
alignToBottom
• Optional
alignToBottom: boolean
Setting alignToBottom
to true
aligns the items to the bottom of the list if the list is shorter than the viewport.
Use followOutput
property to keep the list aligned when new items are appended.
Overrides
Omit.alignToBottom
Defined in
dist/index.d.ts:670
atBottomStateChange
• Optional
atBottomStateChange: (atBottom
: boolean
) => void
Type declaration
▸ (atBottom
): void
Called with true / false when the list has reached the bottom / gets scrolled up.
Can be used to load newer items, like tail -f
.
Parameters
Name | Type |
---|---|
atBottom | boolean |
Returns
void
Overrides
Omit.atBottomStateChange
Defined in
dist/index.d.ts:653
atBottomThreshold
• Optional
atBottomThreshold: number
By default 4
. Redefine to change how much away from the bottom the scroller can be before the list is not considered not at bottom.
Overrides
Omit.atBottomThreshold
Defined in
dist/index.d.ts:690
atTopStateChange
• Optional
atTopStateChange: (atTop
: boolean
) => void
Type declaration
▸ (atTop
): void
Called with true
/ false
when the list has reached the top / gets scrolled down.
Parameters
Name | Type |
---|---|
atTop | boolean |
Returns
void
Overrides
Omit.atTopStateChange
Defined in
dist/index.d.ts:657
atTopThreshold
• Optional
atTopThreshold: number
By default 0
. Redefine to change how much away from the top the scroller can be before the list is not considered not at top.
Overrides
Omit.atTopThreshold
Defined in
dist/index.d.ts:686
components
• Optional
components: TableComponents
<D
, C
>
Use the components
property for advanced customization of the elements rendered by the table.
Defined in
dist/index.d.ts:520
computeItemKey
• Optional
computeItemKey: ComputeItemKey
<D
, C
>
If specified, the component will use the function to generate the key
property for each list item.
Overrides
Omit.computeItemKey
Defined in
dist/index.d.ts:578
context
• Optional
context: C
Additional context available in the custom components and content callbacks
Inherited from
Omit.context
Defined in
dist/index.d.ts:863
customScrollParent
• Optional
customScrollParent: HTMLElement
Pass a reference to a scrollable parent element, so that the table won't wrap in its own.
Overrides
Omit.customScrollParent
Defined in
dist/index.d.ts:678
data
• Optional
data: readonly D
[]
The data items to be rendered. If data is set, the total count will be inferred from the length of the array.
Overrides
Omit.data
Defined in
dist/index.d.ts:536
defaultItemHeight
• Optional
defaultItemHeight: number
By default, the component assumes the default item height from the first rendered item (rendering it as a "probe").
If the first item turns out to be an outlier (very short or tall), the rest of the rendering will be slower, as multiple passes of rendering should happen for the list to fill the viewport.
Setting defaultItemHeight
causes the component to skip the "probe" rendering and use the property
value as default height instead.
Overrides
Omit.defaultItemHeight
Defined in
dist/index.d.ts:588
endReached
• Optional
endReached: (index
: number
) => void
Type declaration
▸ (index
): void
Gets called when the user scrolls to the end of the list. Receives the last item index as an argument. Can be used to implement endless scrolling.
Parameters
Name | Type |
---|---|
index | number |
Returns
void
Overrides
Omit.endReached
Defined in
dist/index.d.ts:640
firstItemIndex
• Optional
firstItemIndex: number
Use when implementing inverse infinite scrolling - decrease the value this property
in combination with data
or totalCount
to prepend items to the top of the list.
Warning: the firstItemIndex should be a positive number, based on the total amount of items to be displayed.
Overrides
Omit.firstItemIndex
Defined in
dist/index.d.ts:631
fixedFooterContent
• Optional
fixedFooterContent: FixedFooterContent
Set the contents of the table footer.
Defined in
dist/index.d.ts:528
fixedHeaderContent
• Optional
fixedHeaderContent: FixedHeaderContent
Set the contents of the table header.
Defined in
dist/index.d.ts:524
fixedItemHeight
• Optional
fixedItemHeight: number
Can be used to improve performance if the rendered items are of known size. Setting it causes the component to skip item measurements.
Overrides
Omit.fixedItemHeight
Defined in
dist/index.d.ts:599
followOutput
• Optional
followOutput: FollowOutput
If set to true
, the list automatically scrolls to bottom if the total count is changed.
Set to "smooth"
for an animated scrolling.
By default, followOutput
scrolls down only if the list is already at the bottom.
To implement an arbitrary logic behind that, pass a function:
<Virtuoso
followOutput={(isAtBottom: boolean) => {
if (expression) {
return 'smooth' // can be 'auto' or false to avoid scrolling
} else {
return false
}
}} />
Read-onlyOverrides
Omit.followOutput
Defined in
dist/index.d.ts:624
increaseViewportBy
• Optional
increaseViewportBy: number
| { bottom
: number
; top
: number
}
Set the increaseViewportBy property to artificially increase the viewport size, causing items to be rendered before outside of the viewport.
The property causes the component to render more items than the necessary, but can help with slow loading content.
Using { top?: number, bottom?: number }
lets you set the increase for each end separately.
Overrides
Omit.increaseViewportBy
Defined in
dist/index.d.ts:552
initialItemCount
• Optional
initialItemCount: number
Use for server-side rendering - if set, the list will render the specified amount of items regardless of the container / item size.
Overrides
Omit.initialItemCount
Defined in
dist/index.d.ts:570
initialScrollTop
• Optional
initialScrollTop: number
Set this value to offset the initial location of the list.
Warning: using this property will still run a render cycle at the scrollTop: 0 list window.
If possible, avoid using it and stick to initialTopMostItemIndex
instead.
Overrides
Omit.initialScrollTop
Defined in
dist/index.d.ts:565
initialTopMostItemIndex
• Optional
initialTopMostItemIndex: number
Set to a value between 0 and totalCount - 1 to make the list start scrolled to that item.
Overrides
Omit.initialTopMostItemIndex
Defined in
dist/index.d.ts:559
isScrolling
• Optional
isScrolling: (isScrolling
: boolean
) => void
Type declaration
▸ (isScrolling
): void
Called when the list starts/stops scrolling.
Parameters
Name | Type |
---|---|
isScrolling | boolean |
Returns
void
Overrides
Omit.isScrolling
Defined in
dist/index.d.ts:635
itemContent
• Optional
itemContent: ItemContent
<D
, C
>
Set the callback to specify the contents of the item.
Overrides
Omit.itemContent
Defined in
dist/index.d.ts:574
itemSize
• Optional
itemSize: SizeFunction
Allows customizing the height/width calculation of Item
elements.
The default implementation reads el.getBoundingClientRect().height
and el.getBoundingClientRect().width
.
Overrides
Omit.itemSize
Defined in
dist/index.d.ts:594
itemsRendered
• Optional
itemsRendered: (items
: ListItem
<D
>[]) => void
Type declaration
▸ (items
): void
Called with the new set of items each time the list items are rendered due to scrolling.
Parameters
Name | Type |
---|---|
items | ListItem <D >[] |
Returns
void
Overrides
Omit.itemsRendered
Defined in
dist/index.d.ts:665
logLevel
• Optional
logLevel: LogLevel
set to LogLevel.DEBUG to enable various diagnostics in the console, the most useful being the item measurement reports.
Ensure that you have "all levels" enabled in the browser console too see the messages.
Inherited from
Omit.logLevel
Defined in
dist/index.d.ts:1049
overscan
• Optional
overscan: number
| { main
: number
; reverse
: number
}
Set the overscan property to make the component "chunk" the rendering of new items on scroll.
The property causes the component to render more items than the necessary, but reduces the re-renders on scroll.
Setting { main: number, reverse: number }
lets you extend the list in both the main and the reverse scrollable directions.
See the increaseViewportBy
property for a similar behavior (equivalent to the overscan
in react-window
).
Overrides
Omit.overscan
Defined in
dist/index.d.ts:543
rangeChanged
• Optional
rangeChanged: (range
: ListRange
) => void
Type declaration
▸ (range
): void
Called with the new set of items each time the list items are rendered due to scrolling.
Parameters
Name | Type |
---|---|
range | ListRange |
Returns
void
Overrides
Omit.rangeChanged
Defined in
dist/index.d.ts:648
restoreStateFrom
• Optional
restoreStateFrom: StateSnapshot
pass a state obtained from the getState() method to restore the list state - this includes the previously measured item sizes and the scroll location. Notice that you should still pass the same data and totalCount properties as before, so that the list can match the data with the stored measurements. This is useful when you want to keep the list state when the component is unmounted and remounted, for example when navigating to a different page.
Inherited from
Omit.restoreStateFrom
Defined in
dist/index.d.ts:1055
scrollSeekConfiguration
• Optional
scrollSeekConfiguration: false
| ScrollSeekConfiguration
Use to display placeholders if the user scrolls fast through the list.
Set components.ScrollSeekPlaceholder
to change the placeholder content.
Overrides
Omit.scrollSeekConfiguration
Defined in
dist/index.d.ts:605
scrollerRef
• Optional
scrollerRef: (ref
: null
| HTMLElement
| Window
) => any
Type declaration
▸ (ref
): any
Provides access to the root DOM element
Parameters
Name | Type |
---|---|
ref | null | HTMLElement | Window |
Returns
any
Overrides
Omit.scrollerRef
Defined in
dist/index.d.ts:682
startReached
• Optional
startReached: (index
: number
) => void
Type declaration
▸ (index
): void
Called when the user scrolls to the start of the list.
Parameters
Name | Type |
---|---|
index | number |
Returns
void
Overrides
Omit.startReached
Defined in
dist/index.d.ts:644
totalCount
• Optional
totalCount: number
The total amount of items to be rendered.
Overrides
Omit.totalCount
Defined in
dist/index.d.ts:532
totalListHeightChanged
• Optional
totalListHeightChanged: (height
: number
) => void
Type declaration
▸ (height
): void
Called when the total list height is changed due to new items or viewport resize.
Parameters
Name | Type |
---|---|
height | number |
Returns
void
Overrides
Omit.totalListHeightChanged
Defined in
dist/index.d.ts:661
useWindowScroll
• Optional
useWindowScroll: boolean
Uses the document scroller rather than wrapping the list in its own.
Overrides
Omit.useWindowScroll
Defined in
dist/index.d.ts:674
Methods
Methods
scrollBy
▸ scrollBy(location
): void
Parameters
Name | Type |
---|---|
location | ScrollToOptions |
Returns
void
Defined in
dist/index.d.ts:513
scrollIntoView
▸ scrollIntoView(location
): void
Parameters
Name | Type |
---|---|
location | number | FlatScrollIntoViewLocation |
Returns
void
Defined in
dist/index.d.ts:510
scrollTo
▸ scrollTo(location
): void
Parameters
Name | Type |
---|---|
location | ScrollToOptions |
Returns
void
Defined in
dist/index.d.ts:512
scrollToIndex
▸ scrollToIndex(location
): void
Parameters
Name | Type |
---|---|
location | number | FlatIndexLocationWithAlign |
Returns
void
Defined in
dist/index.d.ts:511