public void RefreshChatRoom(int chatRoomId) { var newMsg = _messageRepository.FindMessageInfo(chatRoomId).FirstOrDefault(); if (newMsg != null) { var newMsgModel = new MessageViewModel() { Text = newMsg.Text, DateAdded = newMsg.DateAdded, SenderId = newMsg.SenderId, SenderName = newMsg.SenderName, SenderImagePath = Convert.ToBase64String(newMsg.SenderImage) }; string newMsgJSON = JsonConvert.SerializeObject(newMsgModel); _chatHub.RefreshChatRoom(chatRoomId, newMsgJSON); } }