private async Task DeleteHistory()
{
const string filtered = "filtered";
const string complete = "complete";
var message = $"Do you realy want to delete the {(UndoFilterCommand.IsEnabled ? filtered : complete)} History?";
var delete = await _uiService.DisplayAlert(message);
if (delete)
{
await _uiService.ShowActivityPopup("deleting ...");
var itemsToDelete = UndoFilterCommand.IsEnabled ? await _repository.FindAll <SyncLog>(_ => _.StartDate <= _startDate && _.EndDate >= _endDate) : await _repository.GetAll <SyncLog>();
if (itemsToDelete.Any())
{
_repository.DeleteRange(itemsToDelete);
_syncLogsInternal.Clear();
}
if (itemsToDelete.Any() || !itemsToDelete.Any())
{
await _uiService.RemoveActivityPopup();
}
}
}
public MainViewModel(ISyncService syncService, IRepository repository, IUiService uiService)
{
_syncService = syncService;
_repository = repository;
SyncCommand = new RelayCommand(OnSyncCommand)
{
IsEnabled = false
};
StartDate = DateTime.Today.AddDays(-7);
EndDate = DateTime.Today.AddDays(30);
LoginHintEnabled = true;
_searchResultsInternal = new ObservableRangeCollection <SearchResult>();
SearchResults = new ReadOnlyObservableCollection <SearchResult>(_searchResultsInternal);
SearchCommand = new RelayCommand(OnSearchCommand);
SetInternetConnection();
Connectivity.ConnectivityChanged += Connectivity_ConnectivityChanged;
SearchResultSelectionChangedCommand = new Command <SearchResult>(SearchResultSelectionChanged);
_uiService = uiService;
_syncService.AfterLogin = () => Device.BeginInvokeOnMainThread(async() => await _uiService.ShowActivityPopup("downloading calendar entries ..."));
}