private bool IsSelectedSubscriptionGroupPart(SubscriptionGroupPart subscriptionGroupPart, SubscriptionGroupAccessPart part)
        {
            if (part.SubscriptionGroupSelection == null)
            {
                return(false);
            }

            return(part.SubscriptionGroupSelection.Any(x => x.Identifier == subscriptionGroupPart.Identifier && x.IsSelected));
        }
 public SubscriptionGroupPart[] SelectedSubscriptionGroupParts(List <SubscriptionGroupPart> subscriptionGroups, SubscriptionGroupAccessPart part)
 {
     return(subscriptionGroups.Select(x => new SubscriptionGroupPart
     {
         Identifier = x.Identifier,
         ContentItem = x.ContentItem,
         IsSelected = IsSelectedSubscriptionGroupPart(x, part)
     }).ToArray());
 }