fetchData method Null safety

Future<void> fetchData(
  1. BuildContext context
)

Implementation

Future<void> fetchData(BuildContext context) async {
  dataTableRows = [];

  diseaseObservations = await ApiService().fetchDiseaseObservations();

  selectedDataRows = [];
  diseaseObservations.forEach((e) {
    selectedDataRows.add(false);
  });

  dataTableRows = diseaseObservations.map((e) => _buildDataTableRow(context, e)).toList();

  notifyListeners();
}