TimerEventSubscriptionCollection TimerEventSubscriptionCollection TimerEventSubscriptionCollection TimerEventSubscriptionCollection Class



This API is now obsolete.

Represents an ordered list of TimerEventSubscription objects.

public ref class TimerEventSubscriptionCollection : System::Collections::ICollection
[System.Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
public class TimerEventSubscriptionCollection : System.Collections.ICollection
type TimerEventSubscriptionCollection = class
    interface ICollection
    interface IEnumerable
Public Class TimerEventSubscriptionCollection
Implements ICollection



This material discusses types and namespaces that are obsolete. For more information, see Deprecated Types in Windows Workflow Foundation 4.5.

A TimerEventSubscriptionCollection represents the queue of TimerEventSubscription objects associated with a workflow instance and provides methods to manage this queue. Subscriptions are ordered in the queue based on their ExpiresAt values; those with smaller ExpiresAt values are positioned before those with larger ExpiresAt values. You can use the methods provided by this class to manage the collection of active timer event subscriptions exposed by TimerCollectionProperty for each workflow instance. You can use Add or Remove to add or remove subscriptions from the timer queue. Whenever the first element in the timer queue changes, the WorkflowSchedulerService is called to cancel the timer event that was previously at the beginning of the queue and schedule the new timer event.


TimerCollectionProperty TimerCollectionProperty TimerCollectionProperty TimerCollectionProperty

Timer queue associated with a workflow instance. This queue contains time ordered TimerEventSubscription objects for a workflow.


Count Count Count Count

Gets the number of TimerEventSubscription objects in the timer queue.

IsSynchronized IsSynchronized IsSynchronized IsSynchronized

Gets a value that indicates whether the access to the TimerEventSubscriptionCollection is synchronized (thread safe).

SyncRoot SyncRoot SyncRoot SyncRoot

Gets an object that can be used to synchronize access to the TimerEventSubscriptionCollection.


Add(TimerEventSubscription) Add(TimerEventSubscription) Add(TimerEventSubscription) Add(TimerEventSubscription)

Adds a TimerEventSubscription to the timer queue.

CopyTo(Array, Int32) CopyTo(Array, Int32) CopyTo(Array, Int32) CopyTo(Array, Int32)

Copies the TimerEventSubscriptionCollection elements to an existing one-dimensional Array, starting at the specified array index.

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

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

(Inherited from Object)
GetEnumerator() GetEnumerator() GetEnumerator() GetEnumerator()

Returns an enumerator that iterates through the TimerEventSubscriptionCollection.

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)
Peek() Peek() Peek() Peek()

Returns the TimerEventSubscription at the beginning of the timer queue without removing it.

Remove(Guid) Remove(Guid) Remove(Guid) Remove(Guid)

Removes the TimerEventSubscription that has the specified subscription id from the timer queue.

Remove(TimerEventSubscription) Remove(TimerEventSubscription) Remove(TimerEventSubscription) Remove(TimerEventSubscription)

Removes the TimerEventSubscription from the timer queue.

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

Returns a string that represents the current object.

(Inherited from Object)

Extension Methods

Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable) Cast<TResult>(IEnumerable)

Casts the elements of an IEnumerable to the specified type.

OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable) OfType<TResult>(IEnumerable)

Filters the elements of an IEnumerable based on a specified type.

AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable) AsParallel(IEnumerable)

Enables parallelization of a query.

AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable) AsQueryable(IEnumerable)

Converts an IEnumerable to an IQueryable.

Applies to