private static IEnumerable <TagPrefix> GetTagPrefixes(LanguageElement element)
{
return(TagPrefix.FindMatching(element.FileNode, TagPrefix.AtCaret(element)));
}
void rpRenameXamlNamespacePrefix_CheckAvailability(object sender, CheckContentAvailabilityEventArgs ea)
{
ea.Available = TagPrefix.AtCaret(ea.Element) != null;
}