LogViewer.MainWindow.AppendMessage C# (CSharp) Method

        private void AppendMessage(string fmt, params object[] args)
        {
            UiDispatcher.RunOnUIThread(() =>
            {
                string msg = fmt;
                if (args != null && args.Length > 0)
                {
                    msg = string.Format(fmt, args);
                }
                var doc = Messages.Document;
                Paragraph p = new Paragraph(new Run(msg));
                p.Inlines.Add(new LineBreak());
                doc.Blocks.Add(p);
                Debug.WriteLine(msg);
            });
        }