Activity Class
An abstract base class used to create composite activities from pre-existing Activity objects.
Assembly: System.Activities (in System.Activities.dll)
System.Activities::Activity
System.Activities::ActivityWithResult
System.Activities::AsyncCodeActivity
System.Activities::CodeActivity
System.Activities::DynamicActivity
System.Activities::NativeActivity
System.ServiceModel.Activities::Receive
System.ServiceModel.Activities::ReceiveReply
System.ServiceModel.Activities::Send
System.ServiceModel.Activities::SendReply
| Name | Description | |
|---|---|---|
![]() | Activity() | Initializes a new instance of the Activity class. |
| Name | Description | |
|---|---|---|
![]() | CacheId | Gets the identifier of the cache that is unique within the scope of the workflow definition. |
![]() | Constraints | Gets a collection of Constraint activities that can be configured to provide validation for the Activity. |
![]() | DisplayName | Gets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking. |
![]() | Id | Gets an identifier that is unique in the scope of the workflow definition. |
![]() | Implementation | |
![]() | ImplementationVersion | Gets or sets the version of the implementation used. |
| Name | Description | |
|---|---|---|
![]() | CacheMetadata(ActivityMetadata) | Creates and validates a description of the activity’s arguments, variables, child activities, and activity delegates. |
![]() | Equals(Object^) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | Finalize() | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | MemberwiseClone() | |
![]() | OnCreateDynamicUpdateMap(UpdateMapMetadata^, Activity^) | Raises an event when creating dynamic update map. |
![]() | ShouldSerializeDisplayName() | Indicates whether the DisplayName property should be serialized. |
![]() | ToString() | Returns a String that contains the Id and DisplayName of the Activity.(Overrides Object::ToString().) |
Activity is the base class in the activity type hierarchy. All other activity types such as CodeActivity, NativeActivity, AsyncCodeActivity, DynamicActivity, and ActivityWithResult derive from this class.
The following example shows a simple implementation of an Activity derived class.
Available since 4.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.



