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KeyedByTypeCollection<TItem> Class

Provides a collection whose items are types that serve as keys.

Namespace:  System.Collections.Generic
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

public class KeyedByTypeCollection<TItem> : KeyedCollection<Type, TItem>

Type Parameters


The item types contained in the collection that also serve as the keys for the collection.

Only one object of each type is allowed in the collection because the type is the key and each key must be unique. But you can find objects of different types.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0

.NET Compact Framework

Supported in: 3.5