topic Re: Drop down field in Module Pool Program in Application Development and Automation Discussions

Drop down field in Module Pool Program

Former Member — Tue, 10 Mar 2009 05:53:01 GMT

Hi Friends,

Greetings.....

Iam facing a problem in Module Pool. Description as follows :

In my intial screen I have two input/output fields out of which one is drop down , Iam successfully populating the values nearly 35 using the function module "VRM_SET_VALUES" in the drop down but the problem occured is, the field always holds the first value of the drop down even after the selection of other values from the drop down list.

What could be the reason for that ?

How can we solve this problem ?

Thanks in advance,

Lekha.

Re: Drop down field in Module Pool Program

Former Member — Tue, 10 Mar 2009 05:59:38 GMT

The sap list box allows to select a value from the list but we cannot enter our own value in the list box .The value list that will be displayed consists of two fields TEXT field of TYPE 80(C) and internal KEY field of TYPE 40(C).

In screen painter to create a input/output field into list box we use 'L" as a value for dropdown attribute for the i/o field.

In screen painter to determine the type of method that will be used to fill the value

list we use the attribute value list.

If it is blank the value list will be filled by the first column of the input help assigned to the screen field.This input help can be defined in the ABAP Dictionary, on screen using SELECT,VALUES screen statements or in event POV (PROCESS ON VALUE-REQUEST ) and the input help that will be passed to the field should consists of 2 columns ,the key column is filled automatically by the system.SAP recommends value list field should be blank.

The value can be 'A' meaning that the value list will be filled in the event PBO(PROCESS BEFORE OUTPUT) or before the screen is displayed.In this method we use function module VRM_SET_VALUES to fill the values and pass it to the i/o field.

If a function code is attached to the list box the selection of a value triggers a PAI

otherwise PAI will not trigger.

check this program DEMO_DYNPRO_DROPDOWN_LISTBOX.

Regards

Raj

Edited by: Rajasekhar Dinavahi on Mar 10, 2009 11:32 AM

Re: Drop down field in Module Pool Program

Former Member — Tue, 10 Mar 2009 06:04:33 GMT

Hi Lekha,

Kindly go through this link below:

Hope it helps

Regrds

Mansi

Re: Drop down field in Module Pool Program

I355602 — Tue, 10 Mar 2009 06:13:22 GMT

Hi,

Refer the programs:-

DEMO_DYNPRO_DROPDOWN_LISTBOX

DEMO_DROPDOWN_LIST_BOX

Also you can refer:-

http://help.sap.com/saphelp_nw04/helpdata/en/9f/dbabe435c111d1829f0000e829fbfe/content.htm

This will definitely help you.

Regards,

Tarun