Activity Class
An abstract base class used to create composite activities from pre-existing Activity objects.
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
Namespace: System.Activities
Assembly: System.Activities (in System.Activities.dll)
The Activity type exposes the following members.
| 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 | Gets or sets the delegate that returns an Activity that contains the execution logic. |
| ImplementationVersion | Gets or sets the version of the implementation used. |
| Name | Description | |
|---|---|---|
 | CacheMetadata | 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 a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| OnCreateDynamicUpdateMap | 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.
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.
