Activity Activity Activity Activity Class


An abstract base class used to create composite activities from pre-existing Activity objects.

public ref class Activity abstract
public abstract class Activity
type Activity = class
Public MustInherit Class Activity


The following example shows a simple implementation of an Activity derived class.


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.


Activity() Activity() Activity() Activity()

Initializes a new instance of the Activity class.


CacheId CacheId CacheId CacheId

Gets the identifier of the cache that is unique within the scope of the workflow definition.

Constraints Constraints Constraints Constraints

Gets a collection of Constraint activities that can be configured to provide validation for the Activity.

DisplayName DisplayName DisplayName DisplayName

Gets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking.

Id Id Id Id

Gets an identifier that is unique in the scope of the workflow definition.

Implementation Implementation Implementation Implementation

Gets or sets the delegate that returns an Activity that contains the execution logic.

ImplementationVersion ImplementationVersion ImplementationVersion ImplementationVersion

Gets or sets the version of the implementation used.


CacheMetadata(ActivityMetadata) CacheMetadata(ActivityMetadata) CacheMetadata(ActivityMetadata) CacheMetadata(ActivityMetadata)

Creates and validates a description of the activity's arguments, variables, child activities, and activity delegates.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
OnCreateDynamicUpdateMap(UpdateMapMetadata, Activity) OnCreateDynamicUpdateMap(UpdateMapMetadata, Activity) OnCreateDynamicUpdateMap(UpdateMapMetadata, Activity) OnCreateDynamicUpdateMap(UpdateMapMetadata, Activity)

Raises an event when creating dynamic update map.

ShouldSerializeDisplayName() ShouldSerializeDisplayName() ShouldSerializeDisplayName() ShouldSerializeDisplayName()

Indicates whether the DisplayName property should be serialized.

ToString() ToString() ToString() ToString()

Returns a String that contains the Id and DisplayName of the Activity.

Applies to