final ITagElementResolver tagregResolver = IStructuredDocumentContextResolverFactory2.INSTANCE
.getResolver(_context, ITagElementResolver.class);
if (tagregResolver != null) { //relies on getTagEntity() having been called to have setup the _element
final ITagElement tag = tagregResolver.getTagElement(_element);
if (tag != null) {
for (final ITagAttribute attr : tag.getAttributes().values()) {
final IPropertyDescriptor pd = getAttrPropertyDescriptor(attr
.getName());
if (pd != null)
result.add(new PropertyDescriptorWrapper(_element,
pd));// ,