loadNext method
Implementation
Future loadNext({NsgDataRequestParams? filter}) async {
status = GetStatus.loading();
sendNotify();
if (items.length + 1 < (totalCount ?? 1000)) {
items.addAll(await _loadItems(items.length, loadStepCountUi, filter: filter));
}
status = GetStatus.success(NsgBaseController.emptyData);
sendNotify();
}