AsyncDataTableSource class abstract

Implement this class and use it in conjunction with AsyncPaginatedDataTable2 to allow asynchronous data fetching. Please overide AsyncDataTableSource.getRows and DataTableSource.selectedRowCount to make it legible as a data source.

Inheritance

Constructors

AsyncDataTableSource()

Properties

error → Object?
no setter
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
isRowCountApproximate → bool
Called to establish if rowCount is a precise number or might be an over-estimate. If this returns true (i.e. the count is approximate), and then later the exact number becomes available, then call notifyListeners.
no setteroverride
rowCount → int
Called to obtain the number of rows to tell the user are available.
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selectedRowCount → int
Called to obtain the number of rows that are currently selected.
no setteroverride
selectionRowKeys → Set<LocalKey>
Lists rows (their keys) which are treated as eitehr selected or deselected (see selectionState)
no setter
selectionState → SelectionState
no setter
state → SourceState
no setter

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
deselectAll() → void
deselectAllOnThePage() → void
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
getRow(int index) → DataRow?
Called to obtain the data about a particular row.
override
getRows(int startIndex, int count) → Future<AsyncRowsResponse>
Override this method to allow the data source asynchronously fetch count data beginning from start (e.g. from a server) and convert them to DataRow/DataRow2 entities consumed by AsyncPaginatedDataTable2 widget. Note that besides rows this method is also supposed to return the total number of available rows (both values are packed into AsyncRowsResponse instance returned from this method)
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
refreshDatasource() → void
This method triggers getRows() requesting same rows as the last time and intitaite update workflow (and thus rebuilding of AsyncPaginatedDataTable2 attached to this data source). Can be used for sorting
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
selectAll() → void
selectAllOnThePage() → void
setRowSelection(LocalKey rowKey, bool selected) → void
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited