Re: Threading across abstraction layers

Why not implement a delegate/event that the main thread can implement a
handler on and have the thread raise it when it's done? Othe options would
be a Mutex or other synchronization event.

-Chris


"Ian Williamson" <bmcpeake@nospam.shaw.ca> wrote in message
news:0f8c01c344f2$2b2d2860$a001280a@phx.gbl...
> Greetings,
>
> You can tell I am nearing the end of my project as I am
> now posting all my little bugaboos that I do not have an
> answer for.
>
> I am using Merge Replication and I want to pop-up a
> window with an animated GIF that executes during the span
> of the call to Replicate the data.
>
> Now since I cannot query the state of the thread in CE,
> how am I going to know when the call to the Replicate
> method is done?
>
> Right now, I will be doing this sort of thing within my
> presentation layer:
>
> private void UpdateData()
> {
> MyDataReplicator myDataReplicator = new MyDataReplicator
> ();
> myPopup popup = new myPopup(); // form with animated GIF
> Thread thread = new Thread(new ThreadStart
> (myDataReplicator.Replicate()));
> thread.Start();
> popup.Show();
> while (true)
> {
> popup.Update(); // animate next frame of GIF
> sleep(1000);
> *** something here to check state of "thread" to see
> if it has completed execution - if true, break
> }
> popup.Dispose();
> myDataReplicator.Displose();
>
>
> Also, what are the best practices for disposing of a
> thread like this once it has completed?
>
> Note that I do not want to use Invoke to update my GUI
> from the delegate thread as it is in my Data Tier and
> making such a callback would really muck up my
> abstraction model.
>
>
> Cheers, Ian Williamson
>
>