Quote from Gaev on April 19, 2019, 3:52 am

@info1:

ban users to go back with browser navigation button to the previous state

When you say "state", I assume that you are talking about "page in your App created with VisualNEOWeb".

they should not be able to change their choice to another one in a questionnarie

Again, I assume you have "one question per page".

1) Each page has a page-enter and page-exit event section, where you can ...

- set up your own "variables/arrays" to keep a list of previously visited "question pages"

- use one of the navigation commands here (https://webhelp.visualneo.com/Navigation.html) to redirect a user attempting to "re-navigate to a previously visited page" to another page.

 

2) Another (somewhat simpler) tactic would be to have a Text Box (that covers the entire page; optionally with some kind of "Not Allowed" message) that is normally hidden, but upon page-exit you apply ...

ShowObject

ObjectToFront

 

3) Finally, you might consider using just one page for all your questions ... each question/answer set set can be placed in a separate  "off screen and hidden" container ... then just show/move one container into place as needed.

 

Quote from Peter on April 19, 2019, 9:27 am

Dear Gaev,

Thanks for your reply!

Actually there is a "yes" and "no" button. When user pushes one of them, the other will be disabled, and the correct answer will appear. Then user can push a "Next" button to go to the next question. If the answer was wrong, user should start from the beginning.

Here it is (in Hungarian)

www.e-tankonyvek.hu/kozvetlen-koltseg

Tovább = Next

checkbox page: right answers: 1, 3, 7.

First "individual" Q: Nem (No)

Second "individual" Q: Nem (No)

---

If user pushes the wrong button, and uses the browser "Back" (s)he can correct the answer without starting from the beginning.

 

Peter

Quote from Gaev on April 19, 2019, 6:09 pm

@info1:

I think this should work ...

Actually there is a "yes" and "no" button. When user pushes one of them, the other will be disabled, and the correct answer will appear.

At this stage, populate variable called [nextPermittedPageName] ... which will be the name of the ...

•  next page (correct answer)
•  first page (wrong answer).

Then user can push a "Next" button to go to the next question. If the answer was wrong, user should start from the beginning.

The click event section of the Next button should include ...

GotoPage "[nextPermittedPage]

If user pushes the wrong button, and uses the browser "Back" (s)he can correct the answer without starting from the beginning.

In the page-enter event section of each of the pages insert ...

If "[NAB.PageID]" "!=" "[nextPermittedPage]"
   GoToPage "[nextPermittedPage]"
EndIf

Try it out and let us know your experience.

BTW, when I ran your app in Chrome, it automatically translated the contents of the pages into English.

 

Quote from Peter on April 19, 2019, 11:17 pm

Thanks!

It works! You can check it. And user cannot leave the page as well if (s)he edits the url. :-)

First page PageEnter code: SetVar [nextPermittedPage] "", this way user can "restart".

Thanks a lot.

(But during debugging, sometimes it showed error, but next run showed no error or error somewhere else... So error happened randomly.)