public static void Do(ParentTaskOpt opt)
{
IList <Task> continuationList = new List <Task>();
Task task = Task.Factory.StartNew(() => ParentAction(opt));
Task next;
switch (opt)
{
case ParentTaskOpt.A:
next = task.ContinueWith(ant =>
{
Thread.Sleep(1000);
System.Console.WriteLine("Simple continuation");
});
break;
case ParentTaskOpt.B:
next = task.ContinueWith(ant =>
{
System.Console.WriteLine(ant.Exception?.Message);
}, TaskContinuationOptions.OnlyOnFaulted);
break;
case ParentTaskOpt.C:
break;
default:
next = new Task(() => {});
break;
}
next.ContinueWith(ant => System.Console.WriteLine("Stop")).Wait();
}
private static void ParentAction(object opt)
{
TaskCreationOptions atp = TaskCreationOptions.AttachedToParent;
ParentTaskOpt option = (ParentTaskOpt)opt;
switch (option)
{
case ParentTaskOpt.A:
Task.Factory.StartNew(() =>
{
Thread.Sleep(1000);
System.Console.WriteLine("Case A");
});
break;
case ParentTaskOpt.B:
Task.Factory.StartNew(() => { throw null; }, atp);
break;
default:
System.Console.WriteLine("Default");
break;
}
}
