Module-pool screen field value under POV event

Hi All,
I have one issue...please suggest me solution for this.
In module-pool program i have one screen(1000) which has one field(hrname_1000).
Under this event:
PROCESS ON VALUE-REQUEST.
FIELD hrname_1000 MODULE hrname_1000.
under this module hename_1000 i have used F4IF_INT_TABLE_VALUE_REQUEST to put a search help for field hrname_1000.
after that i am trying to retrive HR related stuff's based on the field on module-pool i.e i am using hrname_1000 in the where condition.
but problem is that im not getting value for hrname_1000 which im giving in the module-pool screen.
thats y my select query is not working.
Where as im getting values for the hrname_1000 under PBO & PAI.
It will look like below.
PROCESS ON VALUE-REQUEST.
FIELD hrname_1000 MODULE hrname_1000.
(under the above module)
SELECT DISTINCT ename plans FROM pa0001 INTO CORRESPONDING FIELDS OF TABLE itab WHERE stell = '50001026'.
LOOP AT itab INTO wa WHERE ename = hrname_1000.
ENDLOOP.
Please suggest
Thanks & regards
Ansumesh

In some of the cases the screen field is present in the screen but not holding the value in the required structure or field.
so here u need to check the option of reading the screen field values explictly..
//once u hit an enter and do the f4 i think the value will be there ...but if u dont hit enter and do an F4 the value cannot hold and i think u r in this case ..
1.Fill the screen field name in the structure dynpread.
DATA: BEGIN OF DYNP_VALUES OCCURS 10.
        INCLUDE STRUCTURE DYNPREAD.
DATA: END   OF DYNP_VALUES.
DYNP_VALUES-FIELDNAME = 'HRNAME_1000'.
APPEND DYNP_VALUES.
* read screen values
CALL FUNCTION 'DYNP_VALUES_READ'
    EXPORTING
      DYNAME     = HELP_REPID "call the repid of ur prog
      DYNUMB     = HELP_DYNNR "pass the screen number
    TABLES
      DYNPFIELDS = DYNP_VALUES
    EXCEPTIONS
      OTHERS     = 1.
now dynp_values hold the field name and field value of the screen .
now
SORT DYNP_VALUES BY FIELDNAME.
    READ TABLE DYNP_VALUES WITH KEY 'HRNAME_1000' BINARY SEARCH.
    IF SY-SUBRC EQ 0.
      HELP_XXXX = DYNP_VALUES-FIELDVALUE. "store the value into a variable
      TRANSLATE HELP_XXXX TO UPPER CASE.
    ENDIF.
Now check the code with the value if its getting populated which once there will make ur select work ..
Vijay..

Similar Messages

Screen field value under POV event

Hi All,
I have one issue...please suggest me solution for this.
In module-pool program i have one screen(1000) which has one field(hrname_1000).
Under this event:
PROCESS ON VALUE-REQUEST.
FIELD hrname_1000 MODULE hrname_1000.
under this module hename_1000 i have used F4IF_INT_TABLE_VALUE_REQUEST to put a search help for field hrname_1000.
after that i am trying to retrive HR related stuff's based on the field on module-pool i.e i am using hrname_1000 in the where condition.
but problem is that im not getting value for hrname_1000 which im giving in the module-pool screen.
thats y my select query is not working.
Where as im getting values for the hrname_1000 under PBO & PAI.
It will look like below.
PROCESS ON VALUE-REQUEST.
FIELD hrname_1000 MODULE hrname_1000.
(under the above module)
SELECT DISTINCT ename plans FROM pa0001 INTO CORRESPONDING FIELDS OF TABLE itab WHERE stell = '50001026'.
LOOP AT itab INTO wa WHERE ename = hrname_1000.
ENDLOOP.
Please suggest
Thanks & regards
Ansumesh

Hi,
I guess you don't get back value from function F4IF_INT_TABLE_VALUE_REQUEST to your global data object hrname_1000, althought it is returned from search help back to screen field.
See this thread. I explained there [how values are returned from screen field to a variable|https://www.sdn.sap.com/irj/scn/profile?userid=3509696]
You may also try with FM DYNP_VALUES_READ for reading dynpro fields values in POV.
Regards
Marcin

Module pool screen field should default without pressing enter

Hi
I have got a main module pool screen which has a tabstrip with four tabs.
There are 2 fields in the main screen when we select from F4 for the first field then the field 2 should default in case of a condition.
This happens only when i press enter. I want the second field to change as soon as the first field is selected.
How do I trigger the PAI as soon as the field 1 is selected.
eg:                           Field 1 : i/p
                                Field 2 : display
                               Field 3 : i/p
On F4 for field 1 say i select value 'A' then the valu for field 3 should default to value 'B'. Also field 2 should be displayed based on combination of field 1 and field 2. But now it does it only on pressing enter.
How do I solve this problem?Also if i select field 1 value A and dont press enter and go to the subscreen tab then it does not do any thing. It allows to go on the subscreen tab. But actually it should default the field 3 value. It does it only when I press enter.
Also the F4 is from dictionary that is the screen fields are from dictionary. I have not created any F4 for the fields.
Please help me solve this problem
Regards,
mozila

Hi
You can achieve this using List Box only not by Input Field. Since Input field doesn't trigger automatic PAI/PBO
Go through the below thread
populate drop down menu based on entry in another field
or an alternative is--> In PBO use POPUP_GET_VALUES Fm to get the First input field based on that you can enter further values
unicode error
Cheerz
Ram

How to get values of selection screen fields in the POV event

I have two radio buttons r1,r2 and a field file_name on selection screen.
I have written At selection screen on value-request for the field file_name. Based on the selection of radio buttons I have to display different screens when f4 for field_name is pressed.
Unfortunately the values of r1 or r2 are not populated in the AT selection screen on value-request event.
Can any one tell me if there is a way to obtain the values of r1 or r2 in the AT selection screen on value-request event.

Hi..
Try out this.
REPORT ZH_TEST4                                .
CONSTANTS : c_x                TYPE char01 VALUE 'X',
            c_rg1(4)        TYPE c      VALUE 'RG1',
            c_gr2(3)        TYPE c      VALUE 'GR2',
            c_gr3(3)        TYPE c      VALUE 'GR3',
            c_zero          TYPE n      VALUE '0',
            c_neg(2)        TYPE c      VALUE '-1'.
data: w_sscrfields_ucomm1   TYPE sscrfields-ucomm.
SELECTION-SCREEN : BEGIN OF BLOCK blk1 WITH FRAME TITLE text-001.
PARAMETERS       : p_back   RADIOBUTTON GROUP rg1
                                 USER-COMMAND pc,
                   p_fore   RADIOBUTTON GROUP rg1
                                      DEFAULT 'X'.
SELECTION-SCREEN : END OF BLOCK blk1.
SELECTION-SCREEN : BEGIN OF BLOCK blk2 WITH FRAME TITLE text-002.
PARAMETERS : p_phif LIKE rlgrap-filename MODIF ID gr2,
             p_ahif LIKE rlgrap-filename MODIF ID gr3.
SELECTION-SCREEN : END OF BLOCK blk2.
AT SELECTION-SCREEN OUTPUT.
IF p_fore EQ c_x.
    w_sscrfields_ucomm1 = c_rg1.
ELSE.
    w_sscrfields_ucomm1 = space.
ENDIF.
LOOP AT SCREEN.
    IF w_sscrfields_ucomm1 EQ space.
      IF screen-group1 = c_gr2.
        screen-active = c_zero.
      ENDIF.
    ELSE.
      IF screen-group1 = c_gr3.
        screen-active = c_zero.
      ENDIF.
    ENDIF.
    MODIFY SCREEN.
ENDLOOP.
also try out function module POPUP_WITH_TABLE_DISPLAY.
Plz reward points if this helps by clicking on star!1
Good Luck!!
Cheers,
Rajeev

How to retain leading zeros in module pool screen

Hi experts,
I have a ztable field of type NUMC4 being displayed on a module pool screen, the value in the field is '0001', but on the screen it displays value as '1' (without leading zeros), When I save the record, Even in the databse it stores as '1'.
But I have checked in debugging the field always contains '0001' in the program execution and I have also used 'CONVERSION_EXIT_ALPHA_INPUT' in the PBO but no use.
Pls suggest.
Thanks,
Deepak

Check the screen attributes for the field. There is an option to show leading zeroes.
edit.
And how did you see it was stored a 1 and not 0001? Using SE16N? Mind you: with SE16N conversion-exits are executed automatically thus showing 0001 as 1.
To make sure: double click on the record in SE16N and look if it's still 1 and not 0001.

How to access screen field value in a module pool programming?

Hi Experts,
   I have create a module pool program SAPMYDLG. It contains two screens 100 and 200.
   The first screen contains Employee_ID field. This field is not a dictionary field.
   In the second screen 200, I want to access the value of Employee_ID field from first screen.
   For this I created a global variable v_empid in TOP include.
   Then in the PAI of the screen 100 I have assigned the screen field value to global variable.
   v_empid = Employee_ID.
   But this gives an error saying " Field Employee_ID not defined".
   What am I doing wrong? How can I access the screen field value?
Thanks
Gopal

Hi,
Employee_ID field also must u define in the top include when u define that 100 screen and 200 screen will access.
regards,
muralii

Assigning 2 fields of same table in Module pool screen

Hi,
I want to assign similar fields of table in module pool screen.
In one case i directly use the tablename-fieldname and in other case when i try doing the same i get error. I know that this is not possible.
Is there any way to get around this. The field i am referring to is attached to a custom domain which is having defined fields. In the second assignment i need to retreive the values of the domain and display it in dropdown mode so that the users are able to select it.
Regards,
Imran

The domain only attached with this field?check the same domain attached to any other field and insert that field in the screen.
shibu
reward if helpful

Custom module pool + Amount field decimals display same as standard screen display

Hi All,
Requirement: A custom module program screen field has to be designed which displays decimal values of amount fields same as amount fields in standard screen.
Standard screen behavior: If the standard screen fields are observed, they refer to data elements WRBTR or AZSOL_F05A (transactions FB50/FB03/FB01). However, number of decimal places that are visible on screen are dependent on the currency that is provided.
Both the data elements have 2 decimal places.
For currency USD two decimal places are displayed - in TCURX - decimal places are two.
For currency JPY or CLP - zero decimal places are displayed - in TCURX - decimal places are zero.
i.e., even though the screen field refers to data element or domain that has the characteristic to show 2 decimal places, based on currency, decimal places are adjusted.
I would like to know how this is happening on standard screen fields.
Solution Required for: How to make the custom screen amounts to display same number of decimal places as standard screen amount fields.
P.S: Before posting the query here, research has been done in SDN and other places. It has been identified that quantity fields adjustments are discussed. However for amount field even though discussed earlier, did not reach a conclusion.
I would like to get a solution for this one.
Thanks in advance.
Goutham.

Thank you all for taking time to take a look at this query.
This issue has been resolved.
Resolution: If the standard transactions (FI transactions in specific) are observed, whenever there is a field that displays amount value, there will be a corresponding field (may not be beside the amount field, somewhere on the screen or in the same sequence of screens) where the currency key value would be entered.
For instance, if you look at FB50 - there is field on top for the user to input currency key value (like USD or CLP or INR).
When any amount field is declared - this currency key field is provided as the reference field in the screen attributes of the amount field.
In short, in the custom module pool program, provide a field that holds currency key value and use this field as reference field for the amount fields.
Do repond to this thread if the resolution is not clear.
Thank you all once again.
Goutham.

How to do ICON_EXPAND and ICON_COLLAPSE input fields in module pool screen?

hi frnds.
My problem is in module pool screen how to do ICON_EXPAND and ICON_COLLAPSE input fields in module pool screen?And how to do GUI STATUS and GUI TITLE? IN SE80.
ITS URGENT.POINTS WILL BE REWADED.THANKS IN ADVANCE.

Hi,
Go through this thread.
[expand and collapse|expand and collapse]
Cheers,
Simha.

Make fields invisible based on selection in module pool screen

I have a several fields in my module pool screen.
There i have a box called Ref Obj.
Inside the box i have fields a b c d e f.
suppose my input has parameter 1.
I need to show only fielda a and b inside the box
suppose my input has parameter 2.
I need to show only fielda c and d inside the box
suppose my input has parameter 3.
I need to show only fielda e and f inside the box
suppose my input has parameter 4.
I should not show any fields and box should be invisible.
I would appreciate if any one could help me regarding this
Thanks in advance

hi,
go through this code, and make the required changes according to u'r requirement but the logic is same.
TABLES: mara , lfa1.
SELECTION-SCREEN: BEGIN OF BLOCK b1 WITH FRAME.
PARAMETERS: p_matnr LIKE mara-matnr DEFAULT 'M633640000' MODIF ID m1,
 p_ersda LIKE mara-ersda DEFAULT '30.06.2004' MODIF ID m2,
 p_aenam LIKE mara-aenam DEFAULT 'DOVIND' MODIF ID m3,
 p_matkl LIKE mara-matkl DEFAULT '0000' MODIF ID m4,
 p_meins LIKE mara-meins DEFAULT 'ST' MODIF ID m5,
 p_mbrsh LIKE mara-mbrsh DEFAULT 'M' MODIF ID m6,
 p_vpsta LIKE mara-vpsta DEFAULT 'KV' MODIF ID m7.
SELECTION-SCREEN: END OF BLOCK b1.
SELECTION-SCREEN: BEGIN OF BLOCK b2 WITH FRAME.
PARAMETERS: p_lifnr LIKE lfa1-lifnr DEFAULT 5070001063 MODIF ID s1 ,
 p_land1 LIKE lfa1-land1 DEFAULT 'FR' MODIF ID s1,
 p_name1 LIKE lfa1-name1 DEFAULT 'HONDA' MODIF ID s3,
 p_ort01 LIKE lfa1-ort01 DEFAULT 'PARIS' MODIF ID s4.
SELECTION-SCREEN: END OF BLOCK b2.
AT SELECTION-SCREEN OUTPUT.
LOOP AT SCREEN.
 IF screen-group1 = 'M1' .
 screen-input = 0.
 MODIFY SCREEN.
 ELSE.
 IF screen-group1 = 'M2' .
 screen-invisible = 1.
 MODIFY SCREEN.
 ELSE.
 IF screen-group1 = 'M3' .
 screen-intensified = 1.
 MODIFY SCREEN.
 ELSE.
 IF screen-group1 = 'M5' .
 screen-length = 10.
 MODIFY SCREEN.
 ELSE.
 IF screen-group1 = 'M6' .
 screen-active = 0.
 MODIFY SCREEN.
 ELSE.
 IF screen-group1 = 'M7' .
 screen-display_3d = 1.
 MODIFY SCREEN.
 ELSE.
 IF screen-group1 = 'M4' .
 screen-output = 0.
 MODIFY SCREEN.
 ELSE.
 IF screen-group1 = 'S1' AND
 screen-name = 'P_LIFNR'.
 screen-values_in_combo = 1.
 MODIFY SCREEN.
 ELSE.
 IF screen-group1 = 'S1' AND
 screen-name = 'P_LAND1'.
 MODIFY SCREEN.
 ENDIF.
 ENDIF.
 ENDIF.
 ENDIF.
 ENDIF.
 ENDIF.
 ENDIF.
 ENDIF.
 ENDIF.
ENDLOOP.
please reward points if helpfull.
with regards,
radhika kolluru.

Select-option field on module pool screen

hi all,
Can anyone pls let me know, how to design and use a field like a select-option field on a Module-pool screen i.e. how can i get that multiple selections tab after the high field of the select-options.
thanks in advance,
vinny

All you need to do is define your selection screen and then embed it in a subscreen area of your dynpro(screen). Here is a sample program.
report zrich_0006 .
tables: mara.
* Custom Selection Screen 1010
selection-screen begin of screen 1010 as subscreen.
selection-screen begin of block b1 with frame title text-001.
parameters: p_rad1 radiobutton group grp1 default 'X',
 p_rad2 radiobutton group grp1,
 p_rad3 radiobutton group grp1.
select-options: s_matnr for mara-matnr,
 s_matkl for mara-matkl,
 s_mtart for mara-mtart.
selection-screen end of block b1.
selection-screen end of screen 1010.
start-of-selection.
call screen 100.
*& Module STATUS_0100 OUTPUT
module status_0100 output.
* SET PF-STATUS 'xxxxxxxx'.
* SET TITLEBAR 'xxx'.
endmodule.
*& Module USER_COMMAND_0100 INPUT
module user_command_0100 input.
endmodule.
* Screen screen 100 with a subscreen area called "subscreen_1010"
* Screen Flow Logic follows
*process before output.
* module status_0100.
* call subscreen subscreen_1010 including sy-repid '1010'.
*process after input.
* call subscreen subscreen_1010 .
* module user_command_0100.
Regards,
Rich Heilman

Display Continuous Fluctuations in Input Data in Module Pool Screen

Dear All,
We are working on a Weighbridge Interface scenario, where the weighbridge is sending data to a digitizer, which is connected to the COM port of a PC. The objective is to read the data from the digitizer, and display in a Module pool screen. However, there is one more requirement: the weight may fluctuate until it stabilizes, and the fluctuations have to be displayed on screen. For example, the tare weight of a vehicle may be 12.4 TON, but when the vehicle is standing on the weighbridge, the weight may vary from 10.4 to 12.4 TON. The idea is to capture the stable weight, so that any discrepancies can be avoided. In the current IT system implementation, the fluctuations in the weight are displayed. But using ABAP, can these fluctuations be captured? For example, we may design a screen containing a field for capturing the weight, and the weight displayed there automatically refreshes as soon as there is a change in the digitizer reading. Is this possible to achieve? If so, how?
Awaiting answers.
Thanks and Regards,
Sid

Hi Sid,
just a suggestion for the refreshing of an ABAP screen: you can use class CL_GUI_TIMER, but it only handles whole seconds, i.e. 1 second, 2 seconds and so on, but not 0.5 seconds...
An example of an ABAP listing could be the following:
*& Report ZZAVV001
REPORT zzavv001 NO STANDARD PAGE HEADING.
CONSTANTS: c_yes(1) TYPE c VALUE 'X'.
DATA: BEGIN OF t_bseg OCCURS 0.
        INCLUDE STRUCTURE bseg.
DATA: END OF t_bseg.
data: d_num_bkpf type i,
      d_num_bseg type i.
PARAMETERS: interval TYPE i DEFAULT 5. "meaning 5 seconds
*       CLASS lcl_receiver DEFINITION
CLASS lcl_receiver DEFINITION.
PUBLIC SECTION.
    METHODS:
      handle_finished FOR EVENT finished OF cl_gui_timer.
ENDCLASS.                    "lcl_receiver DEFINITION
* Global data
DATA:
test       TYPE i,
receiver   TYPE REF TO lcl_receiver,
timer      TYPE REF TO cl_gui_timer.
START-OF-SELECTION.
CREATE OBJECT timer.
CREATE OBJECT receiver.
SET HANDLER receiver->handle_finished FOR timer.
timer->interval = interval.
CALL METHOD timer->run.
PERFORM load_data.   "or whatever you have to do to read the weight
PERFORM show_list.   "or whatever you have to do to print the weight you've read
*       CLASS lcl_receiver IMPLEMENTATION
CLASS lcl_receiver IMPLEMENTATION.
METHOD handle_finished.
    PERFORM carga_datos.
    PERFORM muestra_listado.
    CALL METHOD timer->run.
ENDMETHOD.                    "handle_finished
ENDCLASS.                    "lcl_receiver IMPLEMENTATION
*&      Form load_data
*       text
FORM load_data.
clear: d_num_bkpf,
         d_num_bseg.
select single count( * )
    into d_num_bkpf
    from bkpf.
select single count( * )
    into d_num_bseg
    from bseg.
ENDFORM.                    "load_data
*&      Form show_list
*       text
FORM show_list.
get time.
skip to line 1.
position 1.
write: / 'Date / Time:', sy-datum, sy-uzeit.
write: / 'Number of BKPF records:', d_num_bkpf.
write: / 'Number of BSEG records:', d_num_bseg.
ENDFORM.                    " show_list
Okay, it's just a tiny code snippet, but I hope it may help you by designing auto-refreshing screens.
Kind regards,
Alvaro

How to creat select-option on module pool screen???

Hi All,
please tell me how to creat select-option on module pool screen???
Regards
Deepak

Hi Deepak Kumar Sharma,
There are Two ways to achieve it...
1) How to create a select-options in a module pool screen.
Method 1
a) Create a subscreen area in your screen layout where you want to create the select options.
b) In the top include of your module pool program declare a selection screen as a subscreen e.g.
SELECTION-SCREEN BEGIN OF SCREEN 100 AS SUBSCREEN.
select-options s_matnr for mara-matnr.
SELECTION-SCREEN END OF SCREEN.
c) In the PBO and PAI of the main screen where the select options needs to be created do a call subscreen of the above screen (100).
CALL SUBCREEN sub_area INCLUDING <program> <screen>
This call subscreen statement is necessary for transport of values between screen and program.
Note: All validations of the selection screen fields e.g. the s_matnr field created above should be done in selection screen events like AT SELECTION-SCREEN etc and not in PAI. These selection screen validations etc should be done in the top include only.
Method 2
a) Create 2 separate fields in your screen layout - one for the low value and one for the high value. Insert an icon beside the high value which will call the multiple selections popup screen on user command. Use function module COMPLEX_SELECTIONS_DIALOG to achieve this.
struc_tab_and_field-fieldname = con_cust. " 'KUNNR'
struc_tab_and_field-tablename = con_kna1. " 'KNA1'.
CALL FUNCTION 'COMPLEX_SELECTIONS_DIALOG'
EXPORTING
TITLE = ' '
text = g_titl1 " 'Customers'
tab_and_field = struc_tab_and_field
TABLES
RANGE = rng_kunnr
EXCEPTIONS
NO_RANGE_TAB = 1
CANCELLED = 2
INTERNAL_ERROR = 3
INVALID_FIELDNAME = 4
OTHERS = 5.
IF NOT rng_kunnr[] IS INITIAL.
Read the very first entry of the range table and pass it to
dynpro screen field
READ TABLE rng_kunnr INDEX 1.
IF sy-subrc = 0.
g_cust = rng_kunnr-low.
ENDIF.
You can use the return table rng_kunnr to populate your own internal range table with the values entered by the user. Basically here you are just simulating the work of a select-options parameter by module pool screen elements.
Also have a look on below threads
how to make select option in module pool
select option in module pool program
Hope it will solve your problem..
Thanks & Regards
ilesh 24x7

How to handle The Back button on Module Pool screen

Hi Gurus,
I have created a module pool screen. In that screen I have used some input/output fields(text box) which i have marked mandatory by making the input field as "required" under program tab.
now when running the screen if no data is entered into these mandatory input field then BACK button does not work. First I have to enter some data into the input filed only then the BACK button works. How should i code so that the back button works even without entering the data into these mandatory fields.

hi,
use AT EXIT-COMMAND with the module.
eg. module user_command at exit command.
then there will be no problem.

Getting select options in module pool screen

hi experts,
can any one suggest me how to provide select options in module pool screen.
thank you,
regards
vijay

Hi,
Take two fields on screen first for low value and other for high value (say vbeln_low and vbeln_high) also design a button next to the high textbox for select-option button used to display popup.
Using these two input fields append a range (say r_vbeln for vbap-vbeln) for the field to be used (either in query or anywhere).
ranges : r_vbeln for vbap-vbeln.
IF NOT vbeln_high IS INITIAL.
 IF NOT vbeln_low LE vbeln_high.
 MESSAGE e899 WITH text-007. "high value is smaller than low value
 ENDIF.
ENDIF.
r_vbeln-sign = 'I'.
r_vbeln-low = vbeln_low.
IF vbeln_high IS INITIAL.
 r_vbeln-option = 'EQ'. "if user takes only a singlr value
ELSE.
 r_vbeln-option = 'BT'. "if user takes both low & high value
 r_vbeln-high = vbeln_high.
ENDIF.
APPEND r_vbeln. "append range
CLEAR r_vbeln.
On the button click call this FM to call a popup for select-options.
DATA : tab TYPE rstabfield.
tab-tablename = 'VBAP'.
tab-fieldname = 'VBELN'.
CALL FUNCTION 'COMPLEX_SELECTIONS_DIALOG'
 EXPORTING
 title = text-002
 text = ' '
 signed = 'X'
* lower_case = ' '
* no_interval_check = ' '
* just_display = ' '
* just_incl = ' '
* excluded_options =
* description =
* help_field =
* search_help =
 tab_and_field = tab
 TABLES
 range = r_vbeln
 EXCEPTIONS
 no_range_tab = 1
 cancelled = 2
 internal_error = 3
 invalid_fieldname = 4
 OTHERS = 5.
IF sy-subrc EQ 2.
 MESSAGE s899 WITH text-003. "no value selected
ELSEIF sy-subrc <> 0 AND sy-subrc <> 2.
 MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
 WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
This whole code will append your range r_vbeln to be used in program.
Hope this solves your problem.
Thanks & Regards,
Tarun Gambhir

Module-pool screen field value under POV event

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