private StackPanel CreateXmlDeclarationData(XmlDeclaration dec)
        {
            var typeName   = dec.GetType().Name;
            var version    = string.IsNullOrEmpty(dec.Version) ? string.Empty : dec.Version;
            var encode     = string.IsNullOrEmpty(dec.Encoding) ? string.Empty : dec.Encoding;
            var standalone = string.IsNullOrEmpty(dec.Standalone) ? string.Empty : dec.Standalone;

            var items = new List <Tuple <string, string> >
            {
                Tuple.Create("Version", version),
                Tuple.Create("Encoding", encode),
                Tuple.Create("Standalone", standalone),
            };

            return(CreateMemberData(typeName, items));
        }