Activity Class

.NET Framework (current version)
 

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

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


[ContentPropertyAttribute("Implementation")]
public ref class Activity abstract 

NameDescription
System_CAPS_protmethodActivity()

Initializes a new instance of the Activity class.

NameDescription
System_CAPS_protpropertyCacheId

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

System_CAPS_protpropertyConstraints

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

System_CAPS_pubpropertyDisplayName

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

System_CAPS_pubpropertyId

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

System_CAPS_protpropertyImplementation

System_CAPS_protpropertyImplementationVersion

Gets or sets the version of the implementation used.

NameDescription
System_CAPS_protmethodCacheMetadata(ActivityMetadata)

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

System_CAPS_pubmethodEquals(Object^)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_protmethodOnCreateDynamicUpdateMap(UpdateMapMetadata^, Activity^)

Raises an event when creating dynamic update map.

System_CAPS_pubmethodShouldSerializeDisplayName()

Indicates whether the DisplayName property should be serialized.

System_CAPS_pubmethodToString()

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.

.NET Framework
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.

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