Defines size, enumerators, and synchronization methods for all nongeneric collections.
Assembly: mscorlib (in mscorlib.dll)
Overloaded. Enables parallelization of a query.(Defined by ParallelEnumerable.)
The System.Collections namespace.interface is the base interface for classes in the
The IEnumerable; IDictionary and IList are more specialized interfaces that extend . An IDictionary implementation is a collection of key/value pairs, like the Hashtable class. An IList implementation is a collection of values and its members can be accessed by index, like the ArrayList class.interface extends
For the generic version of this interface, see System.Collections.Generic.ICollection<T>.
Available since 4.5
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Available since 8.1