Gets an object that can be used to synchronize access to the TimerEventSubscriptionCollection.
Assembly: System.Workflow.Runtime (in System.Workflow.Runtime.dll)
returns an object, which can be used to synchronize access to the TimerEventSubscriptionCollection.
Access to the TimerEventSubscriptionCollection is synchronized; however, 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 TimerEventSubscriptionCollection during the entire enumeration by using or catch the exceptions resulting from changes made by other threads.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
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)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.