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System.Collections Namespace
The
System.Collections namespace contains interfaces and classes that define various collections of objects, such as lists, queues, bit arrays, hash tables and dictionaries.
Class Description ArrayList Implements the IList interface using an array whose size is dynamically increased as required. BitArray Manages a compact array of bit values, which are represented as Booleans, where true indicates that the bit is on (1) and false indicates the bit is off (0). CaseInsensitiveComparer Compares two objects for equivalence, ignoring the case of strings. CaseInsensitiveHashCodeProvider Supplies a hash code for an object, using a hashing algorithm that ignores the case of strings. CollectionBase Provides the abstract base class for a strongly typed collection. Comparer Compares two objects for equivalence, where string comparisons are case-sensitive. DictionaryBase Provides the abstract base class for a strongly typed collection of key/value pairs. Hashtable Represents a collection of key/value pairs that are organized based on the hash code of the key. Queue Represents a first-in, first-out collection of objects. ReadOnlyCollectionBase Provides the abstract base class for a strongly typed non-generic read-only collection. SortedList Represents a collection of key/value pairs that are sorted by the keys and are accessible by key and by index. Stack Represents a simple last-in-first-out (LIFO) non-generic collection of objects.
Interface Description ICollection Defines size, enumerators, and synchronization methods for all nongeneric collections. IComparer Exposes a method that compares two objects. IDictionary Represents a nongeneric collection of key/value pairs. IDictionaryEnumerator Enumerates the elements of a nongeneric dictionary. IEnumerable Exposes the enumerator, which supports a simple iteration over a non-generic collection. IEnumerator Supports a simple iteration over a nongeneric collection. IEqualityComparer Defines methods to support the comparison of objects for equality. IHashCodeProvider Supplies a hash code for an object, using a custom hash function. IList Represents a non-generic collection of objects that can be individually accessed by index.
Structure Description DictionaryEntry Defines a dictionary key/value pair that can be set or retrieved.
