public ExcludeMemberByPathSelectionRule(MemberPath pathToExclude)
: base(pathToExclude.ToString())
{
memberToExclude = pathToExclude;
}
public void AppendPath(MemberPath nextPath)
{
memberToExclude = memberToExclude.AsParentCollectionOf(nextPath);
SetSelectedPath(memberToExclude.ToString());
}