C# - Get Collections containing BaseItem

[roaku 836]

I have a scenario where I have a BaseItem and want to find out if it is part of a collection with a given name.

 

After deep diving on the forum, I've come up with something that seems to work:

long[] collectionIds = _libraryManager.GetInternalItemIds(new InternalItemsQuery() {
	ListItemIds = new[] {item.InternalId},
	Name = collectionName
});

if (collectionIds.Count() > 0) {
	//our item is in the collection, so do something about it
}

 

But..I was hoping at least some collection information was stored somewhere directly on BaseItem, but that doesn't seem to be the case.

Am I just missing something?

If I do end up having to query for collection for every item, I'll probably try inverting things and and get the collection's children once and cache that result short term, then check each item against that cache.

[Luke 40127]

Hi, yes you're on the right track there.

[roaku 836]

Ok, thanks for the sanity check.