// Prepares the chat item to be sent to the cloud
        private void SendChatLine()
        {
            string msg = TextInput.Text.Trim();

            if (isLoggedin && msg.Length > 0)
            {
                DateTimeOffset myDTO    = (DateTimeOffset)GetCurrentTime();
                DateTime       utc      = myDTO.UtcDateTime;
                var            chatItem = new ChatItem {
                    Text = msg, UserName = String.Format("{0}", userUniqueID), TimeStamp = utc
                };
                //lastChatline = chatItem.Text;
                InsertChatItem(chatItem);
                TextInput.Text = "";
                //RefreshChatItems();
            }
        }
 // Inserts a new chat item to the conversation by posting it in the Azure Mobile
 // Services table, and posting it in the application's chat window
 private async void InsertChatItem(ChatItem chatItem)
 {
     // This code inserts a new ChatItem into the database
     await chatTable.InsertAsync(chatItem);
 }