public static IEnumerable <TChild> GetAllChildren <TChild>(this IContentLoader contentLoader, ContentReference contentReference) where TChild : IContent
{
var usedIds = new HashSet <int>();
var catalogRef = contentLoader.GetChildren <IContent>(contentReference).First();
var nodeQueue = new Queue <IContent>(new List <IContent>()
{
catalogRef
});
while (nodeQueue.Any())
{
var contentData = nodeQueue.Dequeue();
if (!usedIds.Contains(contentData.ContentLink.ID))
{
usedIds.Add(contentData.ContentLink.ID);
var children = contentLoader.LoadChildrenBatched <IContent>(contentData.ContentLink, ContentLanguage.PreferredCulture);
foreach (var child in children)
{
nodeQueue.Enqueue(child);
}
if (contentData is TChild content)
{
yield return(content);
}
}
}
}
