System.Collections.Specialized namespace

NET Framework Class Library  System.Collections.Specialized Namespace 

The System.Collections.Specialized namespace contains specialized and strongly-typed collections; for example, a linked list dictionary, a bit vector, and collections that contain only strings.

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Classes

Class	Description
	CollectionsUtil	Creates collections that ignore the case in strings.
	HybridDictionary	Implements IDictionary by using a ListDictionary while the collection is small, and then switching to a Hashtable when the collection gets large.
	ListDictionary	Implements IDictionary using a singly linked list. Recommended for collections that typically contain 10 items or less.
	NameObjectCollectionBase	Provides the abstract base class for a collection of associated String keys and Object values that can be accessed either with the key or with the index.
	NameObjectCollectionBase.KeysCollection	Represents a collection of the String keys of a collection.
	NameValueCollection	Represents a collection of associated String keys and String values that can be accessed either with the key or with the index.
	OrderedDictionary	Represents a collection of key/value pairs that are accessible by the key or index.
	StringCollection	Represents a collection of strings.
	StringDictionary	Implements a hash table with the key and the value strongly typed to be strings rather than objects.
	StringEnumerator	Supports a simple iteration over a StringCollection.

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Interfaces

Interface	Description
	IOrderedDictionary	Represents an indexed collection of key/value pairs.

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Structures

Structure	Description
	BitVector32	Provides a simple structure that stores Boolean values and small integers in 32 bits of memory.
	BitVector32.Section	Represents a section of the vector that can contain an integer number.

  至于　ICollection, IEnumerable是System.Collection命名空间上的接口