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Activity Class

Creates an activity to do synchronous or asynchronous batch work that can use COM+ services without needing to create a COM+ component. This class cannot be inherited.


Namespace:  System.EnterpriseServices
Assembly:  System.EnterpriseServices (in System.EnterpriseServices.dll)

public sealed class Activity

The Activity type exposes the following members.

Public methodActivityInitializes a new instance of the Activity class.

Public methodAsynchronousCallRuns the specified user-defined batch work asynchronously.
Public methodBindToCurrentThreadBinds the user-defined work to the current thread.
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSynchronousCallRuns the specified user-defined batch work synchronously.
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
Public methodUnbindFromThreadUnbinds the batch work that is submitted by the SynchronousCall or AsynchronousCall methods from the thread on which the batch work is running.

The context associated with the activity is completely determined by a ServiceConfig object.

The following code example demonstrates how to use the Activity class and use the synchronization service.

    class SvcClass: IServiceCall 
        static int callNumber = 0;
        public void OnCall()
            System.Guid contextID = ContextUtil.ContextId;
            Console.WriteLine("This is call number "+ callNumber.ToString()); 
            System.TimeSpan sleepTime = new System.TimeSpan(0,0,0,10); 

    class EnterpriseServicesActivityClass
	static void Main(string[] args)
            ServiceConfig serviceConfig = new ServiceConfig();
            serviceConfig.Synchronization = SynchronizationOption.Required;
            serviceConfig.ThreadPool = ThreadPoolOption.MTA;
            SvcClass serviceCall = new SvcClass();
	    Activity activity = new Activity(serviceConfig); 
            Console.WriteLine("Waiting for asynchronous calls to terminate");

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.