static IMember Resolve(XAttribute attribute, ITextEditor editor)
		{
			XamlContext context = CompletionDataHelper.ResolveCompletionContext(editor, default(char), editor.Document.PositionToOffset(attribute.GetLineNumber(), attribute.GetLinePosition()));
			string prefix = context.XmlnsDefinitions.GetKeyByValue(attribute.Name.NamespaceName);
			if (!string.IsNullOrEmpty(prefix))
				prefix += ":";
			var mrr = XamlResolver.Resolve(prefix + attribute.Name.LocalName, context) as MemberResolveResult;
			if (mrr != null)
				return mrr.ResolvedMember;
			
			return null;
		}