Activity Class
Definition
Important
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An abstract base class used to create composite activities from pre-existing Activity objects.
public ref class Activity abstract[System.Windows.Markup.ContentProperty("Implementation")]
public abstract class Activity[<System.Windows.Markup.ContentProperty("Implementation")>]
type Activity = classPublic MustInherit Class Activity- Inheritance
-
Activity
- Derived
- Attributes
Examples
The following example shows a simple implementation of an Activity derived class.
Remarks
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.
Constructors
| Activity() |
Initializes a new instance of the Activity class. |
Properties
| 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. |
Methods
| 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) |
| GetHashCode() |
Serves as the default hash function. (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(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. |
