Data Grid - State
Initialize and read the state of the Data Grid.
Initialize the state
Some state keys can be initialized with the initialState
prop.
This prop has the same format as the returned value of apiRef.current.exportState()
.
Access the state
The state is exposed on the apiRef
object.
The @mui/x-data-grid-pro
package exposes a set of state selectors that take the apiRef.current.state
as an argument and return a value.
You can use them to get data from the state without worrying about its internal structure.
Direct selector access
The simplest way to use a selector is to call it as a function with apiRef
as its first argument:
const paginationModel = gridPaginationModelSelector(apiRef);
With useGridSelector
If you only need to access the state value in the render of your components, use the useGridSelector
hook.
This hook ensures there is a reactive binding such that when the state changes, the component in which this hook is used is re-rendered.
const paginationModel = useGridSelector(apiRef, gridPaginationModelSelector);
Catalog of selectors
Some selectors have not yet been documented.
Aggregation
gridAggregationLookupSelector
Get the aggregation results as a lookup.Signature:
gridAggregationLookupSelector: (apiRef: GridApiRef) => GridAggregationLookup
// or
gridAggregationLookupSelector: (state: GridState, instanceId?: number) => GridAggregationLookup
Example
gridAggregationLookupSelector(apiRef)
// or
gridAggregationLookupSelector(state, apiRef.current.instanceId)
gridAggregationModelSelector
Get the aggregation model, containing the aggregation function of each column. If a column is not in the model, it is not aggregated.Signature:
gridAggregationModelSelector: (apiRef: GridApiRef) => GridAggregationModel
// or
gridAggregationModelSelector: (state: GridState, instanceId?: number) => GridAggregationModel
Example
gridAggregationModelSelector(apiRef)
// or
gridAggregationModelSelector(state, apiRef.current.instanceId)
Columns
gridColumnDefinitionsSelector
Get an array of column definitions in the order rendered on screen..Signature:
gridColumnDefinitionsSelector: (apiRef: GridApiRef) => GridStateColDef[]
// or
gridColumnDefinitionsSelector: (state: GridState, instanceId?: number) => GridStateColDef[]
Example
gridColumnDefinitionsSelector(apiRef)
// or
gridColumnDefinitionsSelector(state, apiRef.current.instanceId)
gridColumnFieldsSelector
Get an array of column fields in the order rendered on screen.Signature:
gridColumnFieldsSelector: (apiRef: GridApiRef) => string[]
// or
gridColumnFieldsSelector: (state: GridState, instanceId?: number) => string[]
Example
gridColumnFieldsSelector(apiRef)
// or
gridColumnFieldsSelector(state, apiRef.current.instanceId)
gridColumnLookupSelector
Get the columns as a lookup (an object containing the field for keys and the definition for values).Signature:
gridColumnLookupSelector: (apiRef: GridApiRef) => GridColumnLookup
// or
gridColumnLookupSelector: (state: GridState, instanceId?: number) => GridColumnLookup
Example
gridColumnLookupSelector(apiRef)
// or
gridColumnLookupSelector(state, apiRef.current.instanceId)
gridColumnsStateSelector
Get the columns stateSignature:
gridColumnsStateSelector: (state: GridState) => GridColumnsState
Example
const columnsState = gridColumnsStateSelector(apiRef.current.state);
gridFilterableColumnDefinitionsSelector
Get the filterable columns as an array.Signature:
gridFilterableColumnDefinitionsSelector: (apiRef: GridApiRef) => GridStateColDef[]
// or
gridFilterableColumnDefinitionsSelector: (state: GridState, instanceId?: number) => GridStateColDef[]
Example
gridFilterableColumnDefinitionsSelector(apiRef)
// or
gridFilterableColumnDefinitionsSelector(state, apiRef.current.instanceId)
gridFilterableColumnLookupSelector
Get the filterable columns as a lookup (an object containing the field for keys and the definition for values).Signature:
gridFilterableColumnLookupSelector: (apiRef: GridApiRef) => GridColumnLookup
// or
gridFilterableColumnLookupSelector: (state: GridState, instanceId?: number) => GridColumnLookup
Example
gridFilterableColumnLookupSelector(apiRef)
// or
gridFilterableColumnLookupSelector(state, apiRef.current.instanceId)
Visible Columns
gridColumnPositionsSelector
Get the left position in pixel of each visible columns relative to the left of the first column.Signature:
gridColumnPositionsSelector: (apiRef: GridApiRef) => number[]
// or
gridColumnPositionsSelector: (state: GridState, instanceId?: number) => number[]
Example
gridColumnPositionsSelector(apiRef)
// or
gridColumnPositionsSelector(state, apiRef.current.instanceId)
gridColumnVisibilityModelSelector
Get the column visibility model, containing the visibility status of each column. If a column is not registered in the model, it is visible.Signature:
gridColumnVisibilityModelSelector: (apiRef: GridApiRef) => GridColumnVisibilityModel
// or
gridColumnVisibilityModelSelector: (state: GridState, instanceId?: number) => GridColumnVisibilityModel
Example
gridColumnVisibilityModelSelector(apiRef)
// or
gridColumnVisibilityModelSelector(state, apiRef.current.instanceId)
gridColumnsTotalWidthSelector
Get the summed width of all the visible columns.Signature:
gridColumnsTotalWidthSelector: (apiRef: GridApiRef) => number
// or
gridColumnsTotalWidthSelector: (state: GridState, instanceId?: number) => number
Example
gridColumnsTotalWidthSelector(apiRef)
// or
gridColumnsTotalWidthSelector(state, apiRef.current.instanceId)
gridPinnedColumnsSelector
Get the visible pinned columns model.Signature:
gridPinnedColumnsSelector: (state: GridState) => GridPinnedColumnFields
Example
const pinnedColumns = gridPinnedColumnsSelector(apiRef.current.state);
gridVisibleColumnDefinitionsSelector
Get the visible columns as a lookup (an object containing the field for keys and the definition for values).Signature:
gridVisibleColumnDefinitionsSelector: (apiRef: GridApiRef) => GridStateColDef[]
// or
gridVisibleColumnDefinitionsSelector: (state: GridState, instanceId?: number) => GridStateColDef[]
Example
gridVisibleColumnDefinitionsSelector(apiRef)
// or
gridVisibleColumnDefinitionsSelector(state, apiRef.current.instanceId)
gridVisibleColumnFieldsSelector
Get the field of each visible column.Signature:
gridVisibleColumnFieldsSelector: (apiRef: GridApiRef) => string[]
// or
gridVisibleColumnFieldsSelector: (state: GridState, instanceId?: number) => string[]
Example
gridVisibleColumnFieldsSelector(apiRef)
// or
gridVisibleColumnFieldsSelector(state, apiRef.current.instanceId)
gridVisiblePinnedColumnDefinitionsSelector
Get the visible pinned columns.Signature:
gridVisiblePinnedColumnDefinitionsSelector: (apiRef: GridApiRef) => { left: GridStateColDef[]; right: GridStateColDef[] }
// or
gridVisiblePinnedColumnDefinitionsSelector: (state: GridState, instanceId?: number) => { left: GridStateColDef[]; right: GridStateColDef[] }
Example
gridVisiblePinnedColumnDefinitionsSelector(apiRef)
// or
gridVisiblePinnedColumnDefinitionsSelector(state, apiRef.current.instanceId)
Filtering
gridExpandedRowCountSelector
Get the amount of rows accessible after the filtering process.Signature:
gridExpandedRowCountSelector: (apiRef: GridApiRef) => number
// or
gridExpandedRowCountSelector: (state: GridState, instanceId?: number) => number
Example
gridExpandedRowCountSelector(apiRef)
// or
gridExpandedRowCountSelector(state, apiRef.current.instanceId)
gridExpandedSortedRowEntriesSelector
Get the id and the model of the rows accessible after the filtering process. Does not contain the collapsed children.Signature:
gridExpandedSortedRowEntriesSelector: (apiRef: GridApiRef) => GridRowEntry<GridValidRowModel>[]
// or
gridExpandedSortedRowEntriesSelector: (state: GridState, instanceId?: number) => GridRowEntry<GridValidRowModel>[]
Example
gridExpandedSortedRowEntriesSelector(apiRef)
// or
gridExpandedSortedRowEntriesSelector(state, apiRef.current.instanceId)
gridExpandedSortedRowIdsSelector
Get the id of the rows accessible after the filtering process. Does not contain the collapsed children.Signature:
gridExpandedSortedRowIdsSelector: (apiRef: GridApiRef) => GridRowId[]
// or
gridExpandedSortedRowIdsSelector: (state: GridState, instanceId?: number) => GridRowId[]
Example
gridExpandedSortedRowIdsSelector(apiRef)
// or
gridExpandedSortedRowIdsSelector(state, apiRef.current.instanceId)
gridFilterModelSelector
Get the current filter model.Signature:
gridFilterModelSelector: (apiRef: GridApiRef) => GridFilterModel
// or
gridFilterModelSelector: (state: GridState, instanceId?: number) => GridFilterModel
Example
gridFilterModelSelector(apiRef)
// or
gridFilterModelSelector(state, apiRef.current.instanceId)
gridFilteredDescendantRowCountSelector
Get the amount of descendant rows accessible after the filtering process.Signature:
gridFilteredDescendantRowCountSelector: (apiRef: GridApiRef) => number
// or
gridFilteredDescendantRowCountSelector: (state: GridState, instanceId?: number) => number
Example
gridFilteredDescendantRowCountSelector(apiRef)
// or
gridFilteredDescendantRowCountSelector(state, apiRef.current.instanceId)
gridFilteredRowCountSelector
Get the amount of rows accessible after the filtering process. Includes top level and descendant rows.Signature:
gridFilteredRowCountSelector: (apiRef: GridApiRef) => number
// or
gridFilteredRowCountSelector: (state: GridState, instanceId?: number) => number
Example
gridFilteredRowCountSelector(apiRef)
// or
gridFilteredRowCountSelector(state, apiRef.current.instanceId)
gridFilteredSortedRowEntriesSelector
Get the id and the model of the rows accessible after the filtering process. Contains the collapsed children.Signature:
gridFilteredSortedRowEntriesSelector: (apiRef: GridApiRef) => GridRowEntry<GridValidRowModel>[]
// or
gridFilteredSortedRowEntriesSelector: (state: GridState, instanceId?: number) => GridRowEntry<GridValidRowModel>[]
Example
gridFilteredSortedRowEntriesSelector(apiRef)
// or
gridFilteredSortedRowEntriesSelector(state, apiRef.current.instanceId)
gridFilteredSortedRowIdsSelector
Get the id of the rows accessible after the filtering process. Contains the collapsed children.Signature:
gridFilteredSortedRowIdsSelector: (apiRef: GridApiRef) => GridRowId[]
// or
gridFilteredSortedRowIdsSelector: (state: GridState, instanceId?: number) => GridRowId[]
Example
gridFilteredSortedRowIdsSelector(apiRef)
// or
gridFilteredSortedRowIdsSelector(state, apiRef.current.instanceId)
gridFilteredSortedTopLevelRowEntriesSelector
Get the id and the model of the top level rows accessible after the filtering process.Signature:
gridFilteredSortedTopLevelRowEntriesSelector: (apiRef: GridApiRef) => GridRowEntry<GridValidRowModel>[]
// or
gridFilteredSortedTopLevelRowEntriesSelector: (state: GridState, instanceId?: number) => GridRowEntry<GridValidRowModel>[]
Example
gridFilteredSortedTopLevelRowEntriesSelector(apiRef)
// or
gridFilteredSortedTopLevelRowEntriesSelector(state, apiRef.current.instanceId)
gridFilteredTopLevelRowCountSelector
Get the amount of top level rows accessible after the filtering process.Signature:
gridFilteredTopLevelRowCountSelector: (apiRef: GridApiRef) => number
// or
gridFilteredTopLevelRowCountSelector: (state: GridState, instanceId?: number) => number
Example
gridFilteredTopLevelRowCountSelector(apiRef)
// or
gridFilteredTopLevelRowCountSelector(state, apiRef.current.instanceId)
gridQuickFilterValuesSelector
Get the current quick filter values.Signature:
gridQuickFilterValuesSelector: (apiRef: GridApiRef) => any[] | undefined
// or
gridQuickFilterValuesSelector: (state: GridState, instanceId?: number) => any[] | undefined
Example
gridQuickFilterValuesSelector(apiRef)
// or
gridQuickFilterValuesSelector(state, apiRef.current.instanceId)
Pagination
gridPageCountSelector
Get the amount of pages needed to display all the rows if the pagination is enabledSignature:
gridPageCountSelector: (apiRef: GridApiRef) => number
// or
gridPageCountSelector: (state: GridState, instanceId?: number) => number
Example
gridPageCountSelector(apiRef)
// or
gridPageCountSelector(state, apiRef.current.instanceId)
gridPageSelector
Get the index of the page to render if the pagination is enabledSignature:
gridPageSelector: (apiRef: GridApiRef) => number
// or
gridPageSelector: (state: GridState, instanceId?: number) => number
Example
gridPageSelector(apiRef)
// or
gridPageSelector(state, apiRef.current.instanceId)
gridPageSizeSelector
Get the maximum amount of rows to display on a single page if the pagination is enabledSignature:
gridPageSizeSelector: (apiRef: GridApiRef) => number
// or
gridPageSizeSelector: (state: GridState, instanceId?: number) => number
Example
gridPageSizeSelector(apiRef)
// or
gridPageSizeSelector(state, apiRef.current.instanceId)
gridPaginatedVisibleSortedGridRowEntriesSelector
Get the id and the model of each row to include in the current page if the pagination is enabled.Signature:
gridPaginatedVisibleSortedGridRowEntriesSelector: (apiRef: GridApiRef) => GridRowEntry<GridValidRowModel>[]
// or
gridPaginatedVisibleSortedGridRowEntriesSelector: (state: GridState, instanceId?: number) => GridRowEntry<GridValidRowModel>[]
Example
gridPaginatedVisibleSortedGridRowEntriesSelector(apiRef)
// or
gridPaginatedVisibleSortedGridRowEntriesSelector(state, apiRef.current.instanceId)
gridPaginatedVisibleSortedGridRowIdsSelector
Get the id of each row to include in the current page if the pagination is enabled.Signature:
gridPaginatedVisibleSortedGridRowIdsSelector: (apiRef: GridApiRef) => GridRowId[]
// or
gridPaginatedVisibleSortedGridRowIdsSelector: (state: GridState, instanceId?: number) => GridRowId[]
Example
gridPaginatedVisibleSortedGridRowIdsSelector(apiRef)
// or
gridPaginatedVisibleSortedGridRowIdsSelector(state, apiRef.current.instanceId)
gridPaginationMetaSelector
Get the pagination metaSignature:
gridPaginationMetaSelector: (apiRef: GridApiRef) => GridPaginationMeta
// or
gridPaginationMetaSelector: (state: GridState, instanceId?: number) => GridPaginationMeta
Example
gridPaginationMetaSelector(apiRef)
// or
gridPaginationMetaSelector(state, apiRef.current.instanceId)
gridPaginationModelSelector
Get the pagination modelSignature:
gridPaginationModelSelector: (apiRef: GridApiRef) => GridPaginationModel
// or
gridPaginationModelSelector: (state: GridState, instanceId?: number) => GridPaginationModel
Example
gridPaginationModelSelector(apiRef)
// or
gridPaginationModelSelector(state, apiRef.current.instanceId)
gridPaginationRowCountSelector
Get the row countSignature:
gridPaginationRowCountSelector: (apiRef: GridApiRef) => number
// or
gridPaginationRowCountSelector: (state: GridState, instanceId?: number) => number
Example
gridPaginationRowCountSelector(apiRef)
// or
gridPaginationRowCountSelector(state, apiRef.current.instanceId)
gridPaginationRowRangeSelector
Get the index of the first and the last row to include in the current page if the pagination is enabled.Signature:
gridPaginationRowRangeSelector: (apiRef: GridApiRef) => { firstRowIndex: number; lastRowIndex: number } | null
// or
gridPaginationRowRangeSelector: (state: GridState, instanceId?: number) => { firstRowIndex: number; lastRowIndex: number } | null
Example
gridPaginationRowRangeSelector(apiRef)
// or
gridPaginationRowRangeSelector(state, apiRef.current.instanceId)
Sorting
gridSortModelSelector
Get the current sorting model.Signature:
gridSortModelSelector: (apiRef: GridApiRef) => GridSortModel
// or
gridSortModelSelector: (state: GridState, instanceId?: number) => GridSortModel
Example
gridSortModelSelector(apiRef)
// or
gridSortModelSelector(state, apiRef.current.instanceId)
gridSortedRowEntriesSelector
Get the id and the model of the rows after the sorting process.Signature:
gridSortedRowEntriesSelector: (apiRef: GridApiRef) => GridRowEntry<GridValidRowModel>[]
// or
gridSortedRowEntriesSelector: (state: GridState, instanceId?: number) => GridRowEntry<GridValidRowModel>[]
Example
gridSortedRowEntriesSelector(apiRef)
// or
gridSortedRowEntriesSelector(state, apiRef.current.instanceId)
gridSortedRowIdsSelector
Get the id of the rows after the sorting process.Signature:
gridSortedRowIdsSelector: (apiRef: GridApiRef) => GridRowId[]
// or
gridSortedRowIdsSelector: (state: GridState, instanceId?: number) => GridRowId[]
Example
gridSortedRowIdsSelector(apiRef)
// or
gridSortedRowIdsSelector(state, apiRef.current.instanceId)
Virtualization
gridVirtualizationColumnEnabledSelector
Get the enabled state for column virtualizationSignature:
gridVirtualizationColumnEnabledSelector: (apiRef: GridApiRef) => boolean
// or
gridVirtualizationColumnEnabledSelector: (state: GridState, instanceId?: number) => boolean
Example
gridVirtualizationColumnEnabledSelector(apiRef)
// or
gridVirtualizationColumnEnabledSelector(state, apiRef.current.instanceId)
gridVirtualizationEnabledSelector
Get the enabled state for virtualizationSignature:
gridVirtualizationEnabledSelector: (apiRef: GridApiRef) => boolean
// or
gridVirtualizationEnabledSelector: (state: GridState, instanceId?: number) => boolean
Example
gridVirtualizationEnabledSelector(apiRef)
// or
gridVirtualizationEnabledSelector(state, apiRef.current.instanceId)
gridVirtualizationRowEnabledSelector
Get the enabled state for row virtualizationSignature:
gridVirtualizationRowEnabledSelector: (apiRef: GridApiRef) => boolean
// or
gridVirtualizationRowEnabledSelector: (state: GridState, instanceId?: number) => boolean
Example
gridVirtualizationRowEnabledSelector(apiRef)
// or
gridVirtualizationRowEnabledSelector(state, apiRef.current.instanceId)
gridVirtualizationSelector
Get the columns stateSignature:
gridVirtualizationSelector: (state: GridState) => GridVirtualizationState
Example
const virtualization = gridVirtualizationSelector(apiRef.current.state);
Save and restore the state
The current state of the Data Grid can be exported using apiRef.current.exportState()
.
It can then be restored by either passing the returned value to the initialState
prop or to the apiRef.current.restoreState()
method.
Watch out for controlled models and their callbacks (onFilterModelChange
if you use filterModel
, for instance), as the Data Grid calls those callbacks when restoring the state.
But if the callback is not defined or if calling it does not update the prop value, then the restored value will not be applied.
Restore the state with initialState
You can pass the state returned by apiRef.current.exportState()
to the initialState
prop.
In the demo below, clicking on Recreate the 2nd grid will re-mount the second Data Grid with the current state of the first Grid.
Save and restore the state from external storage
You can use apiRef.current.exportState()
to save a snapshot of the state to an external storage (for example using local storage or redux).
This way the state can be persisted on refresh or navigating to another page.
In the following demo, the state is saved to localStorage
and restored when the page is refreshed.
This is done by listening on the beforeunload
event.
When the component is unmounted, the useLayoutEffect
cleanup function is being used instead.
Restore the state with apiRef
You can pass the state returned by apiRef.current.exportState()
to the apiRef.current.restoreState
method.
In the demo below, clicking on Save current view will create a snapshot of the changes made in the state, considering the initial state.
You can apply these changes on the Data Grid later selecting a saved view in the Custom view menu.
Restore part of the state
It is possible to restore specific properties of the state using the apiRef.current.restoreState()
method.
For instance, to only restore the pinned columns:
apiRef.current.restoreState({
pinnedColumns: ['brand'],
});