I'm main developer on a WPF project which is in the early stages of
being rolled out to a large number of customers. A few maybe 5% of
customers are experiencing an issue where windows are appearing behind
other windows when they should not. This has happened both with
Popups and windows opened with ShowModal, and is occurring on XP
machines. I've heard reports that rebooting the machine can solve the
problem!

The application is structured with a large container window that is
the Owner of the other windows created in the app. One reproducible
bug I've encountered is that closing one of these child windows can
leave the container in a non-active state causing another application
to become activated and show in front of the container window.



Window z-ordering in win XP has always seemed flaky to me, is WPF
interacting with it in an unpleasant way? Anyone experienced this?
Any work arounds gratefully received.

James

On Wed, 24 Sep 2008 05:02:59 -0700 (PDT), James <jim_ej@xxxxxx>
wrote:

Sorry, my English is poor, I can't understand what you talk very
clearly, but I experience the Modal dialog behind parent.
my solution is :

ModalWindow dialog = new ModalWindow();
dialog.Owner = parentWindow;
dialog.ShowModal();

>I'm main developer on a WPF project which is in the early stages of
>being rolled out to a large number of customers. A few maybe 5% of
>customers are experiencing an issue where windows are appearing behind
>other windows when they should not. This has happened both with
>Popups and windows opened with ShowModal, and is occurring on XP
>machines. I've heard reports that rebooting the machine can solve the
>problem!
>
>The application is structured with a large container window that is
>the Owner of the other windows created in the app. One reproducible
>bug I've encountered is that closing one of these child windows can
>leave the container in a non-active state causing another application
>to become activated and show in front of the container window.
>
>Window z-ordering in win XP has always seemed flaky to me, is WPF
>interacting with it in an unpleasant way? Anyone experienced this?
>Any work arounds gratefully received.
>
>James

Hi James,

I'm experiencing the same problems. Did you ever found a solution to this?

/Carl

"James" wrote:

> I'm main developer on a WPF project which is in the early stages of
> being rolled out to a large number of customers. A few maybe 5% of
> customers are experiencing an issue where windows are appearing behind
> other windows when they should not. This has happened both with
> Popups and windows opened with ShowModal, and is occurring on XP
> machines. I've heard reports that rebooting the machine can solve the
> problem!
>
> The application is structured with a large container window that is
> the Owner of the other windows created in the app. One reproducible
> bug I've encountered is that closing one of these child windows can
> leave the container in a non-active state causing another application
> to become activated and show in front of the container window.
>
> Window z-ordering in win XP has always seemed flaky to me, is WPF
> interacting with it in an unpleasant way? Anyone experienced this?
> Any work arounds gratefully received.
>
> James
>