private async void GetVocab_OnClick(object sender, RoutedEventArgs e) { var vocabClient = _connection.CreateVocabularyClient(); IList <VocabularyKey> keys = (await vocabClient.GetVocabularyKeysAsync()).ToList(); VocabularyKey key = keys[4]; Vocabulary vocab = await vocabClient.GetVocabularyAsync(key); if (vocab.IsTruncated) { VocabularyKey key2 = new VocabularyKey(key.Name, key.Family, key.Version, vocab.Values.Last().Value); Vocabulary vocab2 = await vocabClient.GetVocabularyAsync(key2); OutputBlock.Text = $"There are {vocab2.Count} items on the second call"; } else { OutputBlock.Text = $"There are {vocab.Count} items"; } }