async Task ExecuteLoadVaccineCommand() { if (IsBusy) { return; } IsBusy = true; try { Vaccines.Clear(); var vaccineTmp = await CurrentDataStore.CurrentDALC.GetVaccineDBProvider.GetAllVaccines(); foreach (var vacinaItem in vaccineTmp) { Vaccines.Add(vacinaItem); } } catch (Exception ex) { Debug.WriteLine(ex); } finally { IsBusy = false; } }