Tab canvas + post-forms-commit + form_trigger_failure

Question

Hi all,
There is a tab canvas with eight tab pages in my forms.
In the post-forms-commit form-level trigger there are controls based on some conditions before executing the processes. When the conditions in the controls are not met then a stop alert is shown and form_trigger_failure is raised. All of these actions , that is the alert and form_trigger_failure , are contained inside a procedure named affiche_erreur.
The problem is that after pressing the alert button then forms goes to the first tab page. And the focus is on a non-navigable button ! Very strange !
I trapped the form_trigger_failure exception in post-forms-commit , but untill now I do not find any way how to put the focus in a specific item.
So how to put the focus into a specific item or a specific tab page ?
Thank you very much indeed

Answer 1

Mark , the when-tab-page-changed trigger does not fire after I pressed the alert button although the focus goes always to the non-navigable button in the first tab-page. I wrote a pause statement at the beginning of the when-tab-page-changed trigger but there was no pause alert at runtime.
Finally I created a timer in the exception of the post-forms-commit trigger which catches the form_trigger_failure exception , and in the when-timer-expired trigger I wrote go_item.