Hi!
I have a serious problem with what appears to be a deadlock in .NET cf. It
occures when I invoke Invalidate on a control from a thread other than the
main thread when the main thread is busy (i.e. displaying a form).

I have a situation similiar to this:

public class MyForm : System.Windows.Forms.Form
{

// ...

private void MyThreadedMethod()
{
while(true)
{
myLabel.Text = "..."; // This hangs the application if the main
thread is busy.
System.Threading.Thread.Sleep(1000);
}
}

// ...

}

How can I avoid this?

Thanks in advance!
Nille

You should always use Control.Invoke to update UI elements from a worker
thread. There are some limitations in the Compact Framework's Control.Invoke
method but these are not impossible to workaround - See an example here on
Daniel's blog:-
http://www.danielmoth.com/Blog/2004/...d-full-fx.html

Peter

--
Peter Foot
Windows Embedded MVP
www.inthehand.com | www.opennetcf.org

"Nille" <(E-Mail Removed)> wrote in message
news:52C98140-A034-4AEF-A724-(E-Mail Removed)...
> Hi!
> I have a serious problem with what appears to be a deadlock in .NET cf. It
> occures when I invoke Invalidate on a control from a thread other than the
> main thread when the main thread is busy (i.e. displaying a form).
>
> I have a situation similiar to this:
>
> public class MyForm : System.Windows.Forms.Form
> {
>
> // ...
>
> private void MyThreadedMethod()
> {
> while(true)
> {
> myLabel.Text = "..."; // This hangs the application if the main
> thread is busy.
> System.Threading.Thread.Sleep(1000);
> }
> }
>
> // ...
>
> }
>
> How can I avoid this?
>
> Thanks in advance!
> Nille

http://www.danielmoth.com/Blog/2004/...d-full-fx.html

Cheers
Daniel
--
http://www.danielmoth.com/Blog/


"Nille" <(E-Mail Removed)> wrote in message
news:52C98140-A034-4AEF-A724-(E-Mail Removed)...
> Hi!
> I have a serious problem with what appears to be a deadlock in .NET cf. It
> occures when I invoke Invalidate on a control from a thread other than the
> main thread when the main thread is busy (i.e. displaying a form).
>
> I have a situation similiar to this:
>
> public class MyForm : System.Windows.Forms.Form
> {
>
> // ...
>
> private void MyThreadedMethod()
> {
> while(true)
> {
> myLabel.Text = "..."; // This hangs the application if the main
> thread is busy.
> System.Threading.Thread.Sleep(1000);
> }
> }
>
> // ...
>
> }
>
> How can I avoid this?
>
> Thanks in advance!
> Nille

Thank you very, very much for responding! I hope this will solve my problem
(haven't been able to try it yet)!

Nille

"Daniel Moth" wrote:

> http://www.danielmoth.com/Blog/2004/...d-full-fx.html
>
> Cheers
> Daniel
> --
> http://www.danielmoth.com/Blog/
>
>
> "Nille" <(E-Mail Removed)> wrote in message
> news:52C98140-A034-4AEF-A724-(E-Mail Removed)...
> > Hi!
> > I have a serious problem with what appears to be a deadlock in .NET cf. It
> > occures when I invoke Invalidate on a control from a thread other than the
> > main thread when the main thread is busy (i.e. displaying a form).
> >
> > I have a situation similiar to this:
> >
> > public class MyForm : System.Windows.Forms.Form
> > {
> >
> > // ...
> >
> > private void MyThreadedMethod()
> > {
> > while(true)
> > {
> > myLabel.Text = "..."; // This hangs the application if the main
> > thread is busy.
> > System.Threading.Thread.Sleep(1000);
> > }
> > }
> >
> > // ...
> >
> > }
> >
> > How can I avoid this?
> >
> > Thanks in advance!
> > Nille
>
>
>