private async Task<bool> RemoveDocument2Async(Document doc) { if (doc != null && doc.ParentId == Id) { await DBManager.DeleteFromDocumentsAsync(doc); int countBefore = _documents.Count; await RunInUiThreadAsync(delegate { _documents.Remove(doc); }).ConfigureAwait(false); await doc.OpenAsync().ConfigureAwait(false); await doc.RemoveContentAsync().ConfigureAwait(false); await doc.CloseAsync().ConfigureAwait(false); doc.Dispose(); return _documents.Count < countBefore || _documents.Count == 0; } return false; }
private async Task<bool> AddDocument2Async(Document doc) { if (doc != null) { if (Document.Check(doc)) { var dbM = DBManager; if (dbM != null && await dbM.InsertIntoDocumentsAsync(doc)) { await RunInUiThreadAsync(delegate { _documents.Add(doc); }).ConfigureAwait(false); await doc.OpenAsync().ConfigureAwait(false); return true; } } } return false; }