public async void QueryDatabase() { var getAffiliations = await _database.RefreshAffiliations().ConfigureAwait(true); Affiliations.Clear(); foreach (Affiliation affiliation in getAffiliations) { Affiliations.Add(affiliation); } Affiliations = new ObservableCollection <Affiliation>(getAffiliations); var getParticipants = await _database.RefreshParticipants().ConfigureAwait(true); Participants.Clear(); foreach (Participant participant in getParticipants) { Participants.Add(participant); } }