Stopping tab page change

Dear members,
I would like to prevent a user from moving to another tab page under some circumstances.
Presently, I use "SET_CANVAS_PROPERTY(v_canvas, TOPMOST_TAB_PAGE, :System.Tab_Previous_Page)" to go back to the previous tab page.
However, I'd prefer to stop the action before the change is done.
Any idea ?

Don't know if this helps but... You cannot change tab pages if your cursor focus is within an item that is contained on the current tab page.
So maybe if the cursor was not allowed off that particular tab page until your conditions were met, that would prevent switching tabs.

Similar Messages

Help using app_standard.event(when-tab-page-changed')

Hello ,
I need to create a form with the following requirements . There is one content canvas which contains a tabbed canvas and on this there are two stacked canvases .
The problem is that when I compile my form and ftp to oebs , I cannot view the tab pages on the canvas .
I see only my the fields displayed in the first tab page without the 'tab pages'.
How do I solve this issue please ?
My when-page-page-trigger contains the following :
BEGIN
APP_STANDARD.EVENT('WHEN-TAB-PAGE-CHANGED');
if name_in('system.cursor_block') = 'XX_ERROR_MANAGEMENT' then
if not form_success then
-- Revert tab to prior value and exit
set_canvas_property('CAN_INT',topmost_tab_page,name_in('system.tab_previous_page'));
return;
end if;
-- Move to first item on each tab
if target_canvas_name = 'CAN_INT' then
SHOW_VIEW('CAN_ONG1');
go_item('XX_ERROR_MANAGEMENT.INTERFACE_TYPE');
else
show_view(target_canvas_name);
end if;
END IF;
END;
Any help will be much appreciated . Thanks .

bump

WHEN-TAB-PAGE-CHANGED TRIGGER

Hi all
Is any way to found examples of
WHEN-TAB-PAGE-CHANGED trigger
in forms implementations.
Any references will be very usefull.
Thanks a lot,
Gor

In the the on-line help Forms' doc there is one :
In case you cannot find it... here it is:
Examples /* Use a When-Tab-Page-Changed trigger to dynamically**
change a tab page's label from lower- to upper-case**
(to indicate to end users if they already have** navigated to the tab page):*/
DECLARE
     tp_nm VARCHAR2(30);
     tp_id TAB_PAGE;
     tp_lb VARCHAR2(30);
     BEGIN
          tp_nm := GET_CANVAS_PROPERTY('emp_cvs', topmost_tab_page);
          tp_id := FIND_TAB_PAGE(tp_nm);
          tp_lb := GET_TAB_PAGE_PROPERTY(tp_id, label);
          IF tp_lb LIKE 'Sa%'
                THEN
                         SET_TAB_PAGE_PROPERTY(tp_id, label, 'SALARY');
          ELSIF tp_lb LIKE 'Va%'
                  THEN
                          SET_TAB_PAGE_PROPERTY(tp_id, label, 'VACATION');
          ELSE
                  null;
          END IF;
END;Greetings...
Sim

WHEN-TAB-PAGE-CHANGED's navigation for 1 table

i have 1 table e.g. Employees
It's fields displayed in tab's pages canvas
i want to navigate through the keyboard from the Last item in page_1 to the First Item in page_2 and so on...
they r in the same table i want to make it programatically not distributing items manually...
Any ideas plz.
Regards,
Abdetu...

_1) If the user Select any tab randamly so i should do the following as in:_
-- WHEN-TAB-PAGE-CHANGED
DECLARE
     tp_nm VARCHAR2(30); -- tab's name
BEGIN
     tp_nm := GET_CANVAS_PROPERTY('TAB_CANVAS', topmost_tab_page);
     IF tp_nm ='INFO_PERSONAL' THEN GO_ITEM ('HR_EMPLOYEES.ID_NUMBER');
     ELSIF tp_nm ='QUALIFICATIONS' THEN GO_ITEM ('QUALIFICATION_ID');
     ELSIF tp_nm ='MILITARY_STATUS' THEN GO_ITEM ('HR_EMPLOYEES.MARITAL_STATUS_ID');
     ELSE null;
     END IF;
     END;
So, it should work as you wrote. I don't see any problem in this code.
2) i want to navigate through the keyboard from the Last item in page_1 to the First Item in page_2 and so on...programatically ...Okay, there are three options...
1. If you set the order of items in object navigator (which you don't want) then by pressing the enter key on last item of tab page it will move to the second tab's first item.
2. Create KEY-NEXT-ITEM trigger and use the GO_ITEM() and send on next tab page's first item.
3. Use the navigable property as i mentioned earlier.
-Ammad

Querying a Form/Tab Page Change/Applicaiton Items

Hi,
I have what I think should be a fairly simple thing to do but am struggling. I have an application item that is set when the user logs on. I have several tabs that open various reports/forms. All I want is that when the user clicks on one tab a form is opened but with a record queried back ready for update with the query being restricted with the value of the application item (application item contains primary key). I have tried setting the default value of the primary key to the application item but no luck. If I manually call the form with primary key column argument:value set in the url the record is queried fine, but you cannot set these items on a tab page change, any help greatly appreciated
Chris

Hello
For each form page you could
Define an unconditional before header page process or a before-header page computation
Set the page-item corresponding to the PK of the form's base table to have the value contained in the application item
Varad

When-tab-page-changed not firing

I have 2 seperate forms opened on a single page. One displays on left side of screen and has tabs. One display on right side. If I am currently on my right side form (no tabs) and click on a tab on the left side form, it seems the 'When-tab-page-changed; trigger is not firing the first time. I have tried this on 6i and 10g webforms. If I try it on client/server 6i it works. Any suggestions?

I just tried this with 10gR2 in web. My form with the tabs only get focus and does not call when-tab-page-changed when you click on a tab after returning from the other form.
A 2nd button press does then call the when-tab-page-changed.

How trigger when-tab-page-change will fire explicitley

Hi,
When-tab-page-change trigger fires only on explicitly changeing the tab page by mouse or key board, is there any way to call this trigger implicitly.
Please do not suggest option execute_trigger.
Thanks,
Ashish

you can take a copy from this trigger and put in a procedure in the form and call it in the trigger of when tab page change and when you need.

When Tab Page Changed Promble with FMX

FORM 6i
Problem is Run Form Exits When Tab Page B is clicked but all other Tab Pages(A,C,D,E) are working fine. There is no exit_form; code in when tab page changed trigger. This particular FMX was working fine in TEST sever over a year.
What could be the Problem? I have renamed fmx toxyz_old.fmx put new xyz.fmx in test server this one run fine. But when I xyz_old.fmx ( exits when B tab page clicked) funny.
Did any one of you guys had similar problem? or Could any one please tell me what was the problem?

thats a problem. First try in this situation is a complete recompile of the form
ctrl-shift-K

When-tab-page-changed trigger PL/SQL

I have a form which Has two tabbed regions
Can Anyone please let me know how to write the PL/SQL for the when tab page changed trigger for this scenario.
I can do it for single tabbed region but cant understand how to do it for 2 or more tabbed regions
thanks

You have to check :system.tab_new_page for what tab page you ended up on as the result of the user navigation. See the help file for an example of code.

Why objet is not stopped when page change

Hi,
I'm currently working in my company on a library.
A have created a class to display ads in a webrowser. A request is executed every 20 seconds.
I display the ads in a panorama page
but when i go to a detail page my banner continu to do request.
The object isn't destroyed when the page change ?
And if not how can i resolve it ?
Thank you

No. You should call the stop method on that timer to ensure it stops when you want it to. It sounds like there's a handle somewhere on that timer that hasn't been released (perhaps via page caching) so that's why the timer hasn't gone out of scope.
Ignoring the obvious solutions makes your programming life more difficult.
Matt Small - Microsoft Escalation Engineer - Forum Moderator
If my reply answers your question, please mark this post as answered.
NOTE: If I ask for code, please provide something that I can drop directly into a project and run (including XAML), or an actual application project. I'm trying to help a lot of people, so I don't have time to figure out weird snippets with
undefined objects and unknown namespaces.

Forms Personalizations- Tab Page Change

Hello all,
Is there a way to use Forms Personaizations to activate a specific TAB page in a block in Forms (EBS 11i10 or 12)? Sometimes a block spans across multiple tab pages and even the focus is on a specific field, the corresponding tab page does not open.
Please let me know if you have any ideas on how to accomplsish this. If there is a different forum for Forms Personalizations, please let me know so I can repost the question there.
Thanks,
Nat.

Nat,
I did not try this myself, but did you check "Forms Personalization" documents (especially the limitation document)?
Note: 279034.1 - Information About the Oracle Applications Form Personalization Feature in 11i
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=279034.1
Note: 468657.1 - How To Do Forms Personalization
https://metalink.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=468657.1
Note: 420518.1 - Limitations of Forms Personalization (under [6] Certain objects may not be available to user to change, or cannot be validated)
https://metalink2.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=420518.1
Regards,
Hussein

Tab Page - changes track

Hi all,
I am developing a tab form with header like
<<header info>
<<field1 >>
<<field2 >>
<<field3 >>
etc
<SAVE> <RESTORE> etc buttons
TAB canvas under header..
<pg1> <pg2 > etc
Some of the tabs are read only and some tabs have save/restore functionalities.
some tab pages are having tables in common and some have different.
My doubt is
If the user is making some changes in particular tab page and going to next page without saving the changes, I want to display "Do u want to save ur changes ?" msg. If he just viewed the page, I do not want to display this page. So, is there any way to track the changes made by the user based on tab page...?
If I track form status msg, will it be serve my purpose?
I thought of having temporary global variable setting to 1/0 in each item's when_validate_item trigger. But I am not satisfied with this solution.
Any help please?
Regards
Priya

Hi Priya,
You can use the system variable :system.form_status (in my previous code example I made a mistake using :form_status) to track changes in your tab.
declare
l_commit boolean;
begin
if :system.form_status = 'CHANGED' then
l_commit := ask_for_commit; -- your function for displaying the message, returning a
-- boolean
if l_commit then
commit_form; -- by committing your form :system.form_status will have
-- status 'QUERY'
else
raise form_trigger_failure;
end if;
end if;
end;

Erratic tab page change

Hi,
I have 2 tab pages. When i navigate from the first page to the second, and then click on one of the 2 checkboxes, or the button, it flicks me back to the first tab page. This doesn't happen with any other items on the page.
I can click on a text box, and then a checkbox or button without this problem. I checked a 'when-mouse-click' trigger with system.mouse_item equal to one of these items. This only shows when another item is clicked first...
Thanks

is it possible, that you write in your WTPC-trigger something like
if tab-page = 'PG_1' then
go_block ('A');
elsif tab-page = 'PG_1' then
go_block ('B');
end if;
test it. With this technique you have explicit navigation to your blocks and not implicit through the tab pages

How to avoid clear record when tab pages changes

Hi All
I am using oracle forms 10g and db 10g.
I have created a form with four tab pages. Namely "EXPENSE" , "AMOUNT_DETAILS", "SUPPLIER" , "ACCOUNT".
When i enter a data in page 1 ie Expense and move to next page page2 "AMOUNT_DETAILS", and enters data in page3 "SUPPLIER" and when i come back to page1 "EXPENSE" and also Page2 "AMOUNT" the data get cleared in Tab pages. There is no data again i need to enter the data manually.
Can any one suggest me how to avoid this clear data.
Thanks & Regards
Srikkanth

Hi,
Thanks once again for your quick response.
I have checked it , i was working with oracle apps.Now i have entered all the datas in the four tab and press save button in the screen at that time also the data get cleared.Can you please tell is there any work around for this.
regards
Srikkanth

Tab pages not changed when selecting from TAB LIST

Hi All,
I have a form which has 15 tabs, 1st 10 Tabs are dynamic (enabled at new form instance, depending on configuration) and 11 to 15 are Static tabs visible for all.
My problem is when i am clicking on tabs iam able to switch tabs, but when I select tab from Tab List I am not going to the selected TAB.
Ex: when I am in TAB 1 and Select TAB15 from Tab list My form Still Stays in TAB1 and not moving to TAB 15
Please provide me a Solution.
My code in WHEN TAB PAGE CHANGED is
DECLARE
l_curr_rec NUMBER;
     BEGIN
          l_curr_rec := :SYSTEM.CURSOR_RECORD;
          --Get the Top Default Tab Page for the Form
          SHOW_VIEW('HDR_CANVAS_FIXED');
          :global.headers:=GET_CANVAS_PROPERTY('TAB_CANVAS', topmost_tab_page);
     IF(:GLOBAL.HEADERS='AS_REC_IMAGE')THEN
SHOW_VIEW('AS_REC_IMAGE');
SET_VIEW_PROPERTY('AS_REC_IMAGE',VISIBLE,PROPERTY_TRUE);
SET_TAB_PAGE_PROPERTY('AS_REC_IMAGE',ENABLED,PROPERTY_TRUE);
          GO_BLOCK('AS_REC');
               --Hide the other canvases except the Pricing Canvas
     ELSIF(:GLOBAL.HEADERS='TRIM_REC_IMAGE')THEN
SHOW_VIEW('TRIM_REC_IMAGE');
SET_VIEW_PROPERTY('TRIM_REC_IMAGE',VISIBLE,PROPERTY_TRUE);
SET_TAB_PAGE_PROPERTY('TRIM_REC_IMAGE',ENABLED,PROPERTY_TRUE);
          GO_BLOCK('TRIM_REC');
               --Hide the other canvases except the Pricing Canvas
     ELSIF(:GLOBAL.HEADERS='AS_SHIP_IMAGE')THEN
SHOW_VIEW('AS_SHIP_IMAGE');
SET_VIEW_PROPERTY('AS_SHIP_IMAGE',VISIBLE,PROPERTY_TRUE);
SET_TAB_PAGE_PROPERTY('AS_SHIP_IMAGE',ENABLED,PROPERTY_TRUE);
          GO_BLOCK('AS_SHIP');
               --Hide the other canvases except the Pricing Canvas
     ELSIF(:GLOBAL.HEADERS='TRIM_SHIP_IMAGE')THEN
SHOW_VIEW('TRIM_SHIP_IMAGE');
SET_VIEW_PROPERTY('TRIM_SHIP_IMAGE',VISIBLE,PROPERTY_TRUE);
SET_TAB_PAGE_PROPERTY('TRIM_SHIP_IMAGE',ENABLED,PROPERTY_TRUE);
          GO_BLOCK('TRIM_SHIP');
               --Hide the other canvases except the Pricing Canvas
     ELSIF(:GLOBAL.HEADERS='EXTRA')THEN
               ---Show the Export Canvas---------
SHOW_VIEW('EXTRA');
SET_VIEW_PROPERTY('EXTRA',VISIBLE,PROPERTY_TRUE);
SET_TAB_PAGE_PROPERTY('EXTRA',ENABLED,PROPERTY_TRUE);
          GO_BLOCK('EXTRA');
               --Hide the other canvases except the Pricing Canvas
     ELSE -- DYNAMIC TABS
--Hide all the other static canvases
IF (:GLOBAL.HEADERS='CT01')THEN
     GO_BLOCK('CT01');
ELSIF (:GLOBAL.HEADERS='CT02')THEN
     GO_BLOCK('CT02');
ELSIF (:GLOBAL.HEADERS='CT03')THEN
     GO_BLOCK('CT03');
ELSIF (:GLOBAL.HEADERS='CT04')THEN
     GO_BLOCK('CT04');
ELSIF (:GLOBAL.HEADERS='CT05')THEN
     GO_BLOCK('CT05');
ELSIF (:GLOBAL.HEADERS='CT06')THEN
     GO_BLOCK('CT06');
ELSIF (:GLOBAL.HEADERS='CT07')THEN
     GO_BLOCK('CT07');
ELSIF (:GLOBAL.HEADERS='CT08')THEN
     GO_BLOCK('CT08');
ELSIF (:GLOBAL.HEADERS='CT09')THEN
     GO_BLOCK('CT09');
ELSE --ELSIF (:GLOBAL.HEADERS='CT10')THEN
     GO_BLOCK('CT10');
END IF;
          END IF;
     END;
Thanks,
Durga Srinivas.
Edited by: DurgaSrinivas_886836 on Dec 3, 2012 8:12 PM

In your trigger, you are doing a SHOW_VIEW ('HDR_CANVAS_FIXED'); before you select the :GLOBAL.HEADERS information. I'm not sure what HDR_CANVAS_FIXED is, but I am wondering if that is what is messing you up. What happens if you either comment that out:
DECLARE
l_curr_rec     NUMBER;
BEGIN
l_curr_rec := :SYSTEM.CURSOR_RECORD;
--Get the Top Default Tab Page for the Form
--SHOW_VIEW ('HDR_CANVAS_FIXED'); /* <-------------------------------------------------------Comment it out */
:global.headers := GET_CANVAS_PROPERTY ('TAB_CANVAS', topmost_tab_page);
IF (:GLOBAL.HEADERS = 'AS_REC_IMAGE') THEN
    SHOW_VIEW ('AS_REC_IMAGE');
    .or if it is necessary move it to after the :GLOBAL.HEADERS:
DECLARE
l_curr_rec     NUMBER;
BEGIN
l_curr_rec := :SYSTEM.CURSOR_RECORD;
--Get the Top Default Tab Page for the Form
:global.headers := GET_CANVAS_PROPERTY ('TAB_CANVAS', topmost_tab_page);
SHOW_VIEW ('HDR_CANVAS_FIXED'); /* <------------------------------------ Swap it with :global.headers */
IF (:GLOBAL.HEADERS = 'AS_REC_IMAGE') THEN
    SHOW_VIEW ('AS_REC_IMAGE');
    SET_VIEW_PROPERTY ('AS_REC_IMAGE', VISIBLE, PROPERTY_TRUE);
    SET_TAB_PAGE_PROPERTY ('AS_REC_IMAGE', ENABLED, PROPERTY_TRUE);
    GO_BLOCK ('AS_REC');
--Hide the other canvases except the Pricing Canvas
ELSIF (:GLOBAL.HEADERS = 'TRIM_REC_IMAGE') THEN
    SHOW_VIEW ('TRIM_REC_IMAGE');
    .

Stopping tab page change

Similar Messages

Maybe you are looking for