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)


[<AbstractClass>]
[<ContentPropertyAttribute("Implementation")>]
type Activity = class end

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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