List<T>.ICollection.IsSynchronized Property
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Gets a value indicating whether access to the ICollection is synchronized (thread safe).
Namespace: System.Collections.Generic
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Private ReadOnly Property IsSynchronized As Boolean
Implements ICollection.IsSynchronized
bool ICollection.IsSynchronized { get; }
Property Value
Type: System.Boolean
true if access to the ICollection is synchronized (thread safe); otherwise, false. In the default implementation of List<T>, this property always returns false.
Implements
Remarks
Default implementations of collections in the System.Collections.Generic namespace are not synchronized.
Enumerating through a collection is intrinsically not a thread-safe procedure. In the rare case where enumeration contends with write accesses, 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.
SyncRoot returns an object that can be used to synchronize access to the ICollection. Synchronization is effective only if all threads lock this object before accessing the collection.
Retrieving the value of this property is an O(1) operation.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.