An unordered, unkeyed collection that can contain the same element multiple times. The .NET collections API, has no Bag. The ICollection<(Of T>) interface closely resembles bag semantics, however NHibernate for .NET 1.1 used IList so IList<(Of T>) is used to ensure the easiest transition to generics.

<SerializableAttribute> _
Public Class PersistentGenericBag(Of T) _
	Inherits AbstractPersistentCollection _
	Implements IList(Of T), ICollection(Of T), IEnumerable(Of T), IList, ICollection, IEnumerable

[SerializableAttribute]
public class PersistentGenericBag<T> : AbstractPersistentCollection, IList<T>, ICollection<T>, IEnumerable<T>, IList, ICollection, IEnumerable

[SerializableAttribute]
generic<typename T>
public ref class PersistentGenericBag : public AbstractPersistentCollection, IList<T>, ICollection<T>, IEnumerable<T>, IList, ICollection, IEnumerable