Specialized Collections
The System.Collections.Specialized namespace contains a series of collections that either are strongly typed or offer functionality that is not widely required.
Strongly Typed Collections
The strongly typed collections all deal exclusively with strings.
NameObjectCollectionBase and NameValueCollection
The NameObjectCollectionBase class is an abstract class that is based on a Hashtable but that accepts only strings as key types. The only concrete implementation of this class in the collections namespace is NameValueCollection. The NameValueCollection class is derived from NameObjectCollectionBase but can be used to store multiple values for each key. However, both the key and the values must be strings. The most obvious use ...
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