Using the TaskScheduler Scheduler to implement control access across threads

1         //Task Scheduler2TaskScheduler Uischeduler =NULL;3          PublicForm1 ()4         {5             //Get Task Scheduler6Uischeduler =Taskscheduler.fromcurrentsynchronizationcontext ();7 InitializeComponent ();8         }9 Ten         Private voidBtntaskscheduler_click (Objectsender, EventArgs e) One         { ASystem.Threading.CancellationTokenSource cts =NewSystem.Threading.CancellationTokenSource (); -             //Start a task thread -task<int> t = Task.run (() =>sum ( -)); the             //using the Uischeduler Scheduler to implement control access across threads -T.continuewith (task = Txtres.text =t.result.tostring (), CTS. Token,taskcontinuationoptions.onlyonrantocompletion,uischeduler); -T.continuewith (task = Txtres.text ="Error", System.Threading.CancellationToken.None, Taskcontinuationoptions.onlyonfaulted,uischeduler); -         } +         Private intSum (intnum) -         { +             intres =0; A              for(inti =0; I <= num; i++) at             { -                 checked{Res + =i;} -                 //res + = i; -             } -             returnRes; -}

Using the TaskScheduler Scheduler to implement control access across threads