Contents
What happens when you call a continuation task?
A continuation is a task that is created in the WaitingForActivation state. It is activated automatically when its antecedent task or tasks complete. Calling Task.Start on a continuation in user code throws an System.InvalidOperationException exception.
Are there any continuation methods in Microsoft Office?
A number of multi-task continuation methods, such as overloads of the TaskFactory.ContinueWhenAll method, also include a System.Threading.Tasks.TaskContinuationOptions parameter. Only a subset of all System.Threading.Tasks.TaskContinuationOptions enumeration members are valid, however.
When to pass cancellation token to continuation task?
If a task and its continuation represent two parts of the same logical operation, you can pass the same cancellation token to both tasks, as shown in the following example. It consists of an antecedent that generates a list of integers that are divisible by 33, which it passes to the continuation.
Which is an example of the use of continuation?
Continuations are relatively easy to use, but are nevertheless powerful and flexible. For example, you can: Pass data from the antecedent to the continuation. Specify the precise conditions under which the continuation will be invoked or not invoked.
How to create a continuation task in Visual Basic?
You can also create a continuation that will run when any or all of a group of tasks has completed. To execute a continuation when all antecedent tasks have completed, you call the static (Shared in Visual Basic) Task.WhenAll method or the instance TaskFactory.ContinueWhenAll method.
Is it possible to use continuation method in Visualforce?
However, this is possible with using Continuation method as well. In Continuation approach, we can call external web service and inform that which callback method should be used to process response. After execution of callback method, data is presented in visualforce page.
How does the continuation work in Microsoft Office?
The Task.ContinueWith method passes a reference to the antecedent to the user delegate of the continuation as an argument. If the antecedent is a System.Threading.Tasks.Task object, and the task ran until it was completed, then the continuation can access the Task .Result property of the task.