FSO.Client.UI.Panels.UIMessage.SendMessage C# (CSharp) Method

        private void SendMessage(UIElement button)
        {
            if (MessageType != UIMessageType.IM) return;
            SendMessageButton.Disabled = true;
            if (MessageTextEdit.CurrentText.Length == 0) return; //if they somehow get past the disabled button or press enter, don't send an empty message.

            AddMessage("Current User", MessageTextEdit.CurrentText);

            UIMessageController controller = GameFacade.MessageController;

            if (!String.IsNullOrEmpty(Author.GUID))
            {
                lock (MessageTextEdit.CurrentText)
                {
                    controller.SendMessage(MessageTextEdit.CurrentText, Author.GUID);
                    MessageTextEdit.CurrentText = "";
                }
            }
            else
            {
                UIAlertOptions Options = new UIAlertOptions();
                Options.Message = "Couldn't find player! Maybe their GUID wasn't sent from the server. Try reopening a chat window to this user.";
                Options.Title = "Player Offline";
                UI.Framework.UIScreen.ShowAlert(Options, true);
            }
        }