topic Re: Module Pool - Dropdown value not transferring to program in Application Development and Automation Discussions

Module Pool - Dropdown value not transferring to program

Former Member — Wed, 27 Jun 2018 18:05:40 GMT

Hi all,

I have checked several entries in the forum and have not found a correct answer.

This is my problem:

I have created a dropdown listbox, and populated the list with the required values with Function VRM_SET_VALUES. When I select any of the values, and then press any button, the correspondent code is not triggered. I have discovered by debug that when pressing the button, at start of PAI, the input field has no values, it is empty.

There is no clear statement.
The field is defined on screen as Input & Output.
I have tried indicating "FIELD v_myfield" at the beggining of PAI module, didn't work.
If I do not set the field as "Listbox" (so it is a normal input field), the value selected is correctly transferred from screen to program.

Any ideas? I don't know what else to try. Any help would be great!

UPDATE!!

The field I am having the issue with, is DD03L-FIELDNAME. I have tested my program changing this field for SBOOK-CONNID, and it works with that field. I think the difference is the flag 'Foreign key check' that CONNID has, and FIELDNAME doesn't. All the examples I've seen are related to CONNID and CARRID, which have Foreign Keys. Does this mean that Dropdown Listbox is only enabled for fields with Foreign Keys?

Re: Module Pool - Dropdown value not transferring to program

DoanManhQuynh — Thu, 28 Jun 2018 02:40:58 GMT

Did you assign function code for dropdownlist yet?

Re: Module Pool - Dropdown value not transferring to program

Former Member — Thu, 28 Jun 2018 06:09:35 GMT

Hello Quynh, thank you for answering.

I also tried that, yes, and didn't work.

Also tried to name it as a DB field (DD03L-FIELDNAME concretely), and hasn't either worked.

Any other suggestion? Thanks!

Re: Module Pool - Dropdown value not transferring to program

DoanManhQuynh — Thu, 28 Jun 2018 07:28:22 GMT

Um..Idk what could be wrong. maybe you can look at SAP sample RSDEMO_DROPDOWN_LISTBOX and find out what difference.

Re: Module Pool - Dropdown value not transferring to program

retired_member — Thu, 28 Jun 2018 09:38:43 GMT

https://help.sap.com/http.svc/rc/abapdocu_752_index_htm/7.52/en-US/index.htm?file=abendynpro_drop1_abexa.htm

https://help.sap.com/http.svc/rc/abapdocu_752_index_htm/7.52/en-US/index.htm?file=abendynpro_drop2_abexa.htm

Re: Module Pool - Dropdown value not transferring to program

former_member185116 — Thu, 28 Jun 2018 10:37:41 GMT

Hi,

have u declared the function code also declare the drop down as (listbox with key),

l1.jpg

the name LIST_BOX will hold the key values as 1 for first row, 2 for second row...

Re: Module Pool - Dropdown value not transferring to program

Former Member — Fri, 29 Jun 2018 12:06:04 GMT

I tried that. The only difference I get is that now the dropdown displays a number (key) on the left of the possible values. But when selecting any, same result... value is not transferred to program.

Re: Module Pool - Dropdown value not transferring to program

Former Member — Fri, 29 Jun 2018 12:09:42 GMT

I have tried copying that sample program and substituting the CARRID field with my DD03L-FIELDNAME field. It doesn't work. Maybe the reason is that CARRID has foreign key (in DB scarr), and my field doesn't.

Thanks anyway

Re: Module Pool - Dropdown value not transferring to program

Former Member — Fri, 29 Jun 2018 12:13:59 GMT

Hi,

You can use VRM_SET_VALUES function module in PBO or Process On Value Request(POV).

Please try with this... and let us know..

Thanks,

Prathyusha.

Re: Module Pool - Dropdown value not transferring to program

Former Member — Sat, 30 Jun 2018 10:14:55 GMT

My call to VRM_SET_VALUES is already in the PBO. I also tried including it in the POV but the result is the same. I get the possible values in the dropdown, but when I select any, the value is not transferred to program.

Thanks!

Re: Module Pool - Dropdown value not transferring to program

Former Member — Mon, 02 Jul 2018 11:17:05 GMT

Thanks for the links!

Re: Module Pool - Dropdown value not transferring to program

Former Member — Mon, 02 Jul 2018 11:19:24 GMT

Hello all,

First, thank you so much for taking the time to answer.

Finally I have managed to get what I wanted!! I made a copy of program DEMO_DYNPRO_DROPDOWN_LISTBOX and then changed its fields for mine, one by one, in order to avoid changing what I didn't need to be changed.

It works!

Re: Module Pool - Dropdown value not transferring to program

retired_member — Mon, 02 Jul 2018 16:02:54 GMT

So, my links to my examples in fact were the correct answer ..

Re: Module Pool - Dropdown value not transferring to program

Former Member — Thu, 05 Jul 2018 08:31:28 GMT

Fine, I've opened the question again to be able to set your links as "correct answer". Have a nice day...