async Task ExecuteLoadDataCommand() { if (IsBusy) { return; } IsBusy = true; try { Bicycles.Clear(); var bicycles = await BicycleDS.FindAllAsync(true); foreach (var bicycle in bicycles) { Bicycles.Add(bicycle); } await RetrieveUsers(); } catch (Exception ex) { Debug.WriteLine(ex); } finally { IsBusy = false; } }