Represents a collection of the
String keys of a collection.
Namespace: System.Collections.Specialized
Assembly: System (in system.dll)
Visual Basic (Declaration)
<SerializableAttribute> _
Public Class KeysCollection
Implements ICollection, IEnumerable
Dim instance As KeysCollection
[SerializableAttribute]
public class KeysCollection : ICollection, IEnumerable
[SerializableAttribute]
public ref class KeysCollection : ICollection, IEnumerable
/** @attribute SerializableAttribute() */
public class KeysCollection implements ICollection, IEnumerable
SerializableAttribute
public class KeysCollection implements ICollection, IEnumerable
System.Object
System.Collections.Specialized.NameObjectCollectionBase.KeysCollection
Public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
This implementation does not provide a synchronized (thread safe) wrapper for a NameObjectCollectionBase.KeysCollection, but derived classes can create their own synchronized versions of the NameObjectCollectionBase.KeysCollection using the SyncRoot property.
Enumerating through a collection is intrinsically not a thread-safe procedure. Even when a collection is synchronized, other threads can still modify the collection, which causes the enumerator to throw an exception. To guarantee thread safety during enumeration, you can either lock the collection during the entire enumeration or catch the exceptions resulting from changes made by other threads.
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.
.NET Framework
Supported in: 3.0, 2.0, 1.1, 1.0
.NET Compact Framework
Supported in: 2.0, 1.0
XNA Framework
Supported in: 1.0