Question

I have a List<MyClass> with a N numbers of items. I process with the following code

foreach (var item in myList)
{
    ThreadPool.QueueUserWorkItem(DoWorkWithItem, item);
}

private void DoWorkWithItem(object threadContext)
{
   ///...
}

but i need get report what item was proccessed, where i can get a Event or something for this task

Answer 1

create event and call it after threat iteration finished, like this:

public class ClassWithDelegate
{
    public delegate void ProgressReportEventHandler();
    public static ProgressReportEventHandler ProgressReport { get; set; };

    private void DoWorkWithItem(object threadContext)
    {
       // angry code

       if (ProgressReport != null)
          ProgressReport();
    }
}

public class Subscriber
{
    public Subscriber()
    {
         ClassWithDelegate.ProgressReport += ProgressReport;         
    }

    public void ProgressReport()
    {
        //todo
    }
}

or use BackgroundWorker, it has this event