Question

I have Created a asynchronous method like below

 System.Threading.Tasks.Task.Factory.StartNew(
                                        () => AddAttachment(document, docId, user)).ContinueWith(
                                            task => BackUpQueuesMail(task.Exception, information, list),
                                            TaskContinuationOptions.OnlyOnFaulted);  

I need to execute a callback function after AddAttachment() methods process successfully. How can i possible this?

Answer 1

One way would be:

System.Threading.Tasks.Task.Factory.StartNew(
                                        () => AddAttachment(document, docId, user)).ContinueWith(
                                            task => OnComplete(task), }
                                            TaskContinuationOptions.None);  


private void OnComplete(task)
{
   if(task.IsFaulted)
   {
   }
   else if(task.IsComplete) {}

}