List(Of T).ICollection.IsSynchronized Property
Gets a value indicating whether access to the ICollection is synchronized (thread safe).
Assembly: mscorlib (in mscorlib.dll)
'Declaration Private ReadOnly Property IsSynchronized As Boolean Implements ICollection.IsSynchronized
Property ValueType: System.Boolean
true if access to the ICollection is synchronized (thread safe); otherwise, false. In the default implementation of List(Of T), this property always returns false.
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.
Retrieving the value of this property is an O(1) operation.
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)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.