private static bool Equals(IProjectNode lhs, IProjectNode rhs)
{
if (object.ReferenceEquals(lhs, rhs))
return true;
if (object.ReferenceEquals(lhs, null) || object.ReferenceEquals(rhs, null))
return false;
if (lhs.GetType().Equals(rhs.GetType()) == false)
return false;
return lhs.FullPath.Equals(rhs.FullPath);
}