Introduction
C# Collections
C# collection types are designed to store, manage and manipulate similar data more efficiently. Data manipulation includes adding, removing, finding, and inserting data in the collection. Collection types implement the following common functionality:
Adding and inserting items to a collection
Removing items from a collection
Finding, sorting, searching items
Replacing items
Copy and clone collections and items
Capacity and Count properties to find the capacity of the collection and number of items in the collection
Types of C# Collection Classes
In C# collections are divided into 3 classes. They are:
System.Collections.Generic
System.Collections
System.Collections.Concurrent
System.Collections.Generic
The System.Collections.Generic namespace has following classes:
List
HashSet
Stack
Queue
LinkedList
SortedSet
Dictionary
SortedDictionary
SortedList
System.Collections.Generic
These classes are legacy. It is suggested now to use System.Collections.Generic classes. The System.Collections namespace has following classes:
ArrayList
Stack
Queue
Hashtable
Collection Interface Hierarchy
Detailed reading
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