private void OnWorkItemCancellationRequested(NativeActivityContext context, Bookmark bookmark, object value)
{
IWorkItemWithChildren workflowRoot = RootWorkItem.Get(context);
List <Guid> pathToChild = workflowRoot.RouteFromParentToChild((Guid)value).Select(workItem => workItem.Id).ToList();
CancelChildWorkItem(pathToChild, context);
}
protected override void Execute(NativeActivityContext context)
{
context.Track(CreateLookupTreeTrackingRecord(RootWorkItem.Get(context).CreateLookupTree()));
context.CreateBookmark(CancellationBookmark, OnCancellationRequested, BookmarkOptions.MultipleResume);
context.CreateBookmark(WorkItemCancellationBookmark, OnWorkItemCancellationRequested, BookmarkOptions.MultipleResume);
context.ScheduleActivity(ProgressTrackingScope, OnProgressActivityCompleted);
}
private void CancelChildWorkItem(IList <Guid> parthToChild, NativeActivityContext context)
{
ICancellableWorkItemWithChildren cancellationRoot = RootWorkItem.Get(context).GoToChild(parthToChild)
as ICancellableWorkItemWithChildren;
if (cancellationRoot != null)
{
BookmarkResumptionResult cancelationRequestResult = context.ResumeBookmark(
new Bookmark(WorkItemCancelationScope.CancelableWorkItemBookmarkName(cancellationRoot.Id)),
cancellationRoot);
if (cancelationRequestResult != BookmarkResumptionResult.Success)
{
WorkItemCancelationScope.MarkTasksAsCancelled(cancellationRoot, context, "Because cancellation request.");
}
}
}