TimerEventSubscription Class
Represents a subscription to a timer event.
Assembly: System.Workflow.Runtime (in System.Workflow.Runtime.dll)
| Name | Description | |
|---|---|---|
![]() | TimerEventSubscription() | Initializes a new instance of the TimerEventSubscription class. |
![]() | TimerEventSubscription(Guid, DateTime) | |
![]() | TimerEventSubscription(Guid, Guid, DateTime) |
| Name | Description | |
|---|---|---|
![]() | ExpiresAt | Gets the expected expiration time of the timer associated with this subscription. |
![]() | QueueName | Represents the name of the WorkflowQueue that the WorkflowRuntime sends a message to when the timer subscription expires. |
![]() | SubscriptionId | Unique identifier that represents a timer event |
![]() | WorkflowInstanceId | Identifier of the workflow associated with the timer subscription |
| Name | Description | |
|---|---|---|
![]() | 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 the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | MemberwiseClone() | |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
Note |
|---|
This material discusses types and namespaces that are obsolete. For more information, see Deprecated Types in Windows Workflow Foundation 4.5. |
TimerEventSubscription objects are added to the timer queue associated with a workflow instance in order to send a message to a specific WorkflowQueue at a specified time. When the time specified by ExpiresAt is reached, the workflow runtime engine sends a message containing the SubscriptionId to the WorkflowQueue specified by QueueName. The timer queue associated with a workflow instance is contained in the TimerCollectionProperty. You can examine TimerCollectionProperty and the WorkflowQueueInfo objects returned by WorkflowInstance::GetWorkflowQueueData to determine which activities are waiting on a specific TimerEventSubscription. The DelayActivity and the SqlWorkflowPersistenceService both use timer event subscriptions to provide part of their functionality.
Available since 3.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.



