Gets a value indicating whether access to the CollectionBase is synchronized (thread safe).
Assembly: mscorlib (in mscorlib.dll)
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.
The following code example shows how to lock the collection using the SyncRoot during the entire enumeration:
' Get the ICollection interface from the CollectionBase ' derived class. Dim myCollection As ICollection = myCollectionBase SyncLock myCollection.SyncRoot For Each item As Object In myCollection ' Insert your code here. Next item End SyncLock
Retrieving the value of this property is an O(1) operation.
Available since 10
Available since 1.1