private async Task <ListResultBase> GetMoreQuestions(String request) { if (QuestionsLoading) { return(null); } QuestionsLoading = true; var result = await _topic.GetQuestionsAsync(LoginUser.Current.Token, request, true); if (result.Result == null) { ToasteIndicator.Instance.Show(String.Empty, result.Error.Message, null, 3); } QuestionsLoading = false; return(result); }