public static ChatParticipant GetChatParticipant(LoginUser loginUser, int chatParticipantID) { ChatParticipants chatParticipants = new ChatParticipants(loginUser); chatParticipants.LoadByChatParticipantID(chatParticipantID); if (chatParticipants.IsEmpty) { return(null); } else { return(chatParticipants[0]); } }