private void ReadDictionaryXML() { DicomDictionary dict = _dict; var xdoc = XDocument.Load(_stream); IEnumerable <XElement> xdicts; if (xdoc.Root.Name == "dictionaries") { xdicts = xdoc.Root.Elements("dictionary"); } else { XElement xdict = xdoc.Element("dictionary"); if (xdict == null) { throw new DicomDataException("Expected <dictionary> root node in DICOM dictionary."); } var dicts = new List <XElement>(); dicts.Add(xdict); xdicts = dicts; } foreach (var xdict in xdicts) { XAttribute creator = xdict.Attribute("creator"); if (creator != null && !string.IsNullOrEmpty(creator.Value)) { dict = _dict[_dict.GetPrivateCreator(creator.Value)]; } else { dict = _dict; } foreach (XElement xentry in xdict.Elements("tag")) { string name = xentry.Value ?? "Unknown"; string keyword = string.Empty; if (xentry.Attribute("keyword") != null) { keyword = xentry.Attribute("keyword").Value; } var vrs = new List <DicomVR>(); XAttribute xvr = xentry.Attribute("vr"); if (xvr != null && !string.IsNullOrEmpty(xvr.Value)) { string[] vra = xvr.Value.Split('_', '/', '\\', ',', '|'); foreach (string vr in vra) { vrs.Add(DicomVR.Parse(vr)); } } else { vrs.Add(DicomVR.NONE); } var vm = DicomVM.Parse(xentry.Attribute("vm").Value); bool retired = false; XAttribute xretired = xentry.Attribute("retired"); if (xretired != null && !string.IsNullOrEmpty(xretired.Value) && bool.Parse(xretired.Value)) { retired = true; } string group = xentry.Attribute("group").Value; string element = xentry.Attribute("element").Value; if (group.ToLower().Contains("x") || element.ToLower().Contains("x")) { var tag = DicomMaskedTag.Parse(group, element); tag.Tag.PrivateCreator = dict.PrivateCreator; dict.Add(new DicomDictionaryEntry(tag, name, keyword, vm, retired, vrs.ToArray())); } else { var tag = DicomTag.Parse(group + "," + element); tag.PrivateCreator = dict.PrivateCreator; dict.Add(new DicomDictionaryEntry(tag, name, keyword, vm, retired, vrs.ToArray())); } } } }