topic Re: hide/unhide screen elements in Application Development and Automation Discussions

hide/unhide screen elements

Advay — Thu, 07 Jun 2012 14:41:58 GMT

Hi,

I am using classical screen programming method.

I have a single screen which has following elements

A F4 help
input text field 1
input text field 2
A Sub Area [ which has 2 labels, Couple of custom controls (2 table controls) and couple of buttons ]

When the screen renders for the first time, only F4 help and input text fields are seen. I am able to hide sub area. Requirement is to see first 3 elements.

The hiding of sub area is done in PBO (depending upon certain input).

Once user selects F4 and chooses a value, i want to render (or unhide) the sub area.

But that doesn't happen, because control does not go back to PBO.

I have to explicitly hit a ENTER key (on the keyboard) to get the sub area.

How can I achieve this without hitting ENTER key.

Can I forcefully invoke PBO from PAI ?
Can I force a refresh or hitting-enter-key like scenario from PAI.
Is there any other way of achieving this ?

Appreciate your help.

Thanks,

Advay

Re: hide/unhide screen elements

venkateswaran_k — Thu, 07 Jun 2012 15:11:23 GMT

Try with the Program Events

AT-SELECTION

AT SELECTION-SCREEN ON VALUE-REQUEST

REgards,

Venkat

Re: hide/unhide screen elements

Former Member — Fri, 08 Jun 2012 14:15:36 GMT

Hi Advay,

In your PAI, upon F4 select, use the event AT SELECTION-SCREEN ON VALUE-REQUEST, you can use the below code to unhide.

LOOP AT SCREEN.

"Here, make you subarea visible.

MODIFY SCREEN.

ENDLOOP.

Hope this helps you.

Regards,

Sindhu Pulluru.

Re: hide/unhide screen elements

Advay — Sun, 10 Jun 2012 14:24:19 GMT

Hi Sindhu,

I tried the above approach but it did not work for me.

I am not using the report program for UI display, its a screen program with PBO and PAI modules.

In the PAI I am using, PROCESS ON VALUE-REQUEST event (which internally will trigger the event that you mentioned above.)

From inside POV module, I try to unhide the screen elements, by LOOP AT SCREEN and MODIFY SCREEN code, but the elements are still hidden even the code executes.

I have to explicitly hit ENTER key to unhide the screen elements.

Note that, I want to unhide the elements only F4 selection itself and not with ENTER key.

Thanks,

Advay

Re: hide/unhide screen elements

RicardoRomero_1 — Tue, 12 Jun 2012 11:41:19 GMT

Hi,

Try to simulate an ENTER within the PROCESS ON VALUE-REQUEST event with the following code:

CALL FUNCTION 'SAPGUI_SET_FUNCTIONCODE'
EXPORTING
functioncode = '=00'
EXCEPTIONS
function_not_supported = 1
OTHERS = 2.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF

You should put the LOOP AT SCREEN in the PBO.

Regards,

Re: hide/unhide screen elements

Advay — Wed, 13 Jun 2012 08:19:31 GMT

Hey Recardo,

Many thanks. It worked.

Cheers,

Advay