SortedDictionary<TKey, TValue>.ValueCollection.ICollection.SyncRoot Property
Gets an object that can be used to synchronize access to the ICollection.
Assemblies: System.Collections (in System.Collections.dll)
System (in System.dll)
Property ValueType: System.Object
An object that can be used to synchronize access to the ICollection. In the default implementation of SortedDictionary<TKey, TValue>.ValueCollection, this property always returns the current instance.
Default implementations of collections in the System.Collections.Generic namespace are not synchronized.
Enumerating through a collection is intrinsically not a thread-safe procedure. To guarantee thread safety during enumeration, you can lock the collection during the entire enumeration. To allow the collection to be accessed by multiple threads for reading and writing, you must implement your own synchronization.
The SyncRoot property returns an object that can be used to synchronize access to the ICollection. Synchronization is effective only if all threads lock the object before accessing the collection. The following code shows the use of the SyncRoot property for C#, C++, and Visual Basic.
Getting the value of this property is an O(1) operation.
.NET FrameworkSupported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
.NET Framework Client ProfileSupported in: 4, 3.5 SP1
Portable Class LibrarySupported in: Portable Class Library
.NET for Windows Store appsSupported in: Windows 8
Supported in: Windows Phone 8.1
Supported in: Windows Phone Silverlight 8.1
Supported in: Windows Phone Silverlight 8
Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)