Microsoft Docs

System.Collections.Specialized Namespace

The System.Collections.Specialized namespace contains specialized and strongly typed collection classes, such as lists, dictionaries, and hybrid collections.

ClassSummary
StringCollectionRepresents a strongly typed collection of strings.
NameValueCollectionProvides a collection of associated String keys and String values that can be accessed either with the key or with the index.
OrderedDictionaryRepresents a collection of key/value pairs that are accessible by the key or index.
HybridDictionaryOptimizes memory and performance based on the number of items in the collection.
ListDictionaryImplements a simple dictionary of objects that are accessible by key.
BitVector32Provides a simple structure that stores Boolean values and small integers.
StringDictionaryImplements a strongly typed dictionary for string keys and values.
StringEnumeratorEnumerates the elements of a StringCollection.
NotifyCollectionChangedEventArgsProvides data for the NotifyCollectionChanged event.