selectRows method
Select multiple rows
Implementation
void selectRows(List<String> rowIds, Map<String, Map<String, dynamic>> rowsData) {
final newSelectedIds = Set<String>.from(_state.selectedRowIds)..addAll(rowIds);
final newSelectedData = Map<String, Map<String, dynamic>>.from(_state.selectedRowsData)
..addAll(rowsData);
_state = _state.copyWith(
selectedRowIds: newSelectedIds,
selectedRowsData: newSelectedData,
);
notifyListeners();
}