Refreshing of a screen....

hi all...
i have a main screen.
From here i move on to the next screen.
after performing manipulatons in ttable control and tree controlls in the screen, i get back to the main screen again. from there without getting totally out if i come back to the next screen, all the manipulations i had done previously still remain without refreshing to initial state.
how do i refresh the screens.
please do help me out with this issue...
Krithika V

It depends on what is on the screens... the responses above won't work as the screens will display whatever is still in the global memory of the module pool / report / function group (wherever your screen is call from) e.g. if the field on the screen is called "GS_9999-DATE" and this field gets set before the first display of screen 9999, then the next time you display screen 9999 the same value will display again, unless you (a) change it or (b) clear it. With controls, e.g. text editors, HTML display etc, you may want to "free" the control after you exit the screen it is on, and create the object again when / if the screen is displayed again.
Jonathan

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Hi everyone. I have somewhat of a simple ABAP program in which the user will enter data on Selection-Screen 1000. This will then be loaded into an Object Oriented ALV Grid for display purposes only (screen 0100). At any time, the user may use the back button on the ALV Grid Screen; which will take them from screen 0100 to screen 1000(Selection Screen). Lets assume the user does not want to go back to the original selection screen from the ALV Grid Screen; they entered the information correctly and want to continue processing using a custom button I've created which will continue to process the record of data into a BW ODS. This process works, but now I would like to use the write statement once the custom button is clicked to show a summary of the data I am inserting into the ODS after the data has been inserted. The problem is, the title of the ALV Grid still shows and the Write statement is processed, but not shown on the screen. I've been trying to refresh the screen with set screen and call screen combinations, but no luck. Any Help would be appreciated. Thanks!
Here is a sample of the code below:
*& Report ZINC_DSP_SALES_INCRASE
REPORT ZINC_DSP_SALES_INCREASE MESSAGE-ID zsm.
INCLUDE <icon>.
DATA: credit_itab type standard table of /bic/azincosvi00,
 wa_credit like line of credit_itab,
 alv_itab type standard table of /bic/azincosvi00,
 wa_alv like line of alv_itab.
DATA: ok_code LIKE sy-ucomm,
 save_ok LIKE sy-ucomm,
 incent type table of /bic/azincosvi00,
 g_container TYPE scrfname VALUE 'Increase DSP Sales',
 grid1 TYPE REF TO cl_gui_alv_grid,
 gs_layout TYPE lvc_s_layo,
 g_custom_container TYPE REF TO cl_gui_docking_container.
DATA: active_guid like /bic/mzguid_dsr,
 UNIQUEKEY LIKE /BIC/AZINCOSVI00-/BIC/ZRCRDKEY,
 rpt_per_rec like /BIC/MZRPTPRDCR,
 dsrcode like /bic/mzdsrcode-/bic/zdsrcode,
 payrec like /bic/mzsubcode.
CLASS lcl_event_receiver DEFINITION DEFERRED.
CLASS lcl_event_receiver DEFINITION.
PUBLIC SECTION.
 METHODS:
 handle_toolbar
 FOR EVENT toolbar OF cl_gui_alv_grid
 IMPORTING e_object e_interactive,
 handle_user_command
 FOR EVENT user_command OF cl_gui_alv_grid
 IMPORTING e_ucomm.
 PRIVATE SECTION.
ENDCLASS.
CLASS lcl_event_receiver IMPLEMENTATION.
This will create the toolbar
METHOD handle_toolbar.
 DATA: ls_toolbar TYPE stb_button.
 CLEAR ls_toolbar.
 MOVE 3 TO ls_toolbar-butn_type.
 APPEND ls_toolbar TO e_object->mt_toolbar.
append an icon to show booking table
 CLEAR ls_toolbar.
 MOVE 'CREATE' TO ls_toolbar-function.
 MOVE ICON_OKAY TO ls_toolbar-icon.
 MOVE ' ' TO ls_toolbar-disabled.
 APPEND ls_toolbar TO e_object->mt_toolbar.
ENDMETHOD.
METHOD handle_user_command.
CASE e_ucomm.
WHEN 'CREATE'.
Insert /bic/azincosvi00 from wa_credit.
CALL METHOD grid1->free.
SET SCREEN '200'.
WHEN 'OTHERS'.
" DO NOTHING
ENDCASE.
ENDMETHOD.
ENDCLASS.
Data: event_receiver TYPE REF TO lcl_event_receiver.
START-OF-SELECTION.
Selection-Screen BEGIN OF BLOCK 1 with frame title text-001.
Parameters: start like /bic/azincosvi00-BILL_DATE.
Selection-Screen END OF BLOCK 1.
Selection-Screen BEGIN OF BLOCK 3 with frame title text-003.
Parameters: guid type /BIC/OIZGUID_DSR,
 pcode type /BIC/OIZPGMCODE,
 scode type /BIC/OIZSUBCODE,
 reason type /BIC/OIZEXCPTC,
 quantity(5) type n,
 discount type /BI0/OISUBTOTAL_4.
Selection-Screen END OF BLOCK 3.
END-OF-SELECTION.
IF quantity <> '00000'.
 if pcode <> 'SCTMS'.
 message e000 with 'Quantity can only be used with seating spiff'.
 endif.
ENDIF.
GET REPORT PERIOD INFO using today's date.
select single * from /bic/mzrptprdcr INTO rpt_per_rec
 where calyear = sy-datum(4)
 and /bic/zpgmcode = pcode
 and ( /BIC/ZRPPRDSTR <= start
 and /BIC/ZRPPRDEND >= start ) .
if sy-subrc <> 0.
 message e000 with
 'Report Period NOT FOUND for' pcode ' ' sy-datum(4).
endif.
Select Active Guid based upon user entry on selection-screen
Select single * from /bic/mzguid_dsr into active_guid
 where /bic/zguid_dsr = guid
 and /bic/zdsrstat = 'A'.
 If sy-subrc <> 0.
 MESSAGE e000 WITH 'Please enter a valid GUID'.
 ENDIF.
Select DSR Code based upon a valid guid entered
Select single /bic/zdsrcode from /bic/mzdsrcode into dsrcode
 where /BIC/ZGUID_DSR = guid
 and /BIC/ZDSRCDST = 'A'.
 If sy-subrc <> 0.
 MESSAGE e000 WITH 'GUID entered does not have an active dsr code.'.
 ENDIF.
Select MAX( /BIC/ZRCRDKEY ) FROM /BIC/AZINCOSVI00 INTO WA_CREDIT-/BIC/ZRCRDKEY.
UNIQUEKEY = WA_CREDIT-/BIC/ZRCRDKEY + 1.
WA_CREDIT-/BIC/ZRCRDKEY = UNIQUEKEY.
WA_CREDIT-PO_NUMBER = UNIQUEKEY.
WA_CREDIT-/BIC/ZERDAT = SY-DATUM.
WA_CREDIT-BILL_DATE = SY-DATUM.
WA_CREDIT-/BIC/ZRPPRDSTR = rpt_per_rec-/BIC/ZRPPRDSTR.
WA_CREDIT-/BIC/ZRPPRDEND = rpt_per_rec-/BIC/ZRPPRDEND.
WA_CREDIT-/BIC/ZCUBPRCDT = SY-DATUM.
WA_CREDIT-/BIC/ZRPTPRDCR = rpt_per_rec-/BIC/ZRPTPRDCR.
WA_CREDIT-/BIC/ZINCPYPRC = '00000000'.
WA_CREDIT-/BIC/ZGUID_DSR = ACTIVE_GUID-/bic/zguid_dsr.
WA_CREDIT-/BIC/ZDSRCODE = dsrcode.
WA_CREDIT-/BIC/ZPGMCODE = PCODE.
WA_CREDIT-/BIC/ZUNASSIGN = 'N'.
WA_CREDIT-/BIC/ZSUBCODE = SCODE.
WA_CREDIT-/BIC/ZSITE_ICR = ACTIVE_GUID-/BIC/ZSITE_IRG.
WA_CREDIT-/BIC/ZSUSPEND = 'N'.
WA_CREDIT-/BIC/ZSUSPNDR = ' '.
WA_CREDIT-/BIC/ZSITE_IRG = ACTIVE_GUID-/BIC/ZSITE_IRG.
WA_CREDIT-/BIC/ZSITE_CST = ' '.
WA_CREDIT-/BIC/ZINCBONUS = '0.00'.
WA_CREDIT-STAT_CURR = 'USD'.
WA_CREDIT-DOC_CURRCY = 'USD'.
WA_CREDIT-SALES_UNIT = 'ST'.
WA_CREDIT-CALYEAR = SY-DATUM(4).
WA_CREDIT-/bic/ZCASEID = SY-UNAME.
WA_CREDIT-/bic/ZSLSRSN = REASON.
WA_CREDIT-RECORDMODE = ' '.
*Depending on Program Code, populate the amounts to be paid.
Data: fivepercent type p.
 fivepercent = '0.05'.
If pcode = 'SCW5S' or pcode = 'SCTMS'.
Select single * from /bic/mzsubcode into payrec
 where /bic/zpgmcode = pcode
 and /bic/zsubcode = scode
 and CALYEAR = sy-datum(4).
 if sy-subrc <> 0.
 write: / '************** ERROR ***********************',
 / '** Missing Program Information for ',
 / pcode,
 scode,
 sy-datum(4),
 exit.
 endif.
ENDIF.
If pcode = 'SCW5S'.
WA_CREDIT-/BIC/ZINCUSDDS = discount.
WA_CREDIT-/BIC/ZPAYAMTUS = WA_CREDIT-/BIC/ZINCUSDDS * payrec-/bic/zpayper / 100.
WA_CREDIT-SUBTOTAL_4 = discount.
WA_CREDIT-/BIC/ZINC_QTY = ' '.
Endif.
If pcode = 'SCTMS'.
WA_CREDIT-/BIC/ZPAYAMTUS = quantity * payrec-/bic/zpayper / 100.
WA_CREDIT-/BIC/ZINCUSDDS = '0.00'.
WA_CREDIT-SUBTOTAL_4 = '0.00'.
WA_CREDIT-/BIC/ZINC_QTY = quantity.
Endif.
If pcode = 'SCTB'.
WA_CREDIT-/BIC/ZPAYAMTUS = '0.00'.
WA_CREDIT-/BIC/ZINCUSDDS = DISCOUNT.
WA_CREDIT-SUBTOTAL_4 = DISCOUNT.
WA_CREDIT-/BIC/ZINC_QTY = ' '.
Endif.
*Create ALV Grid to show the user what the record will look like in which they are creating.
Append wa_credit to alv_itab.
CALL SCREEN 100.
*& Module PBO OUTPUT
 text
MODULE alv_pbo OUTPUT.
SET PF-STATUS 'MAIN100'.
SET TITLEBAR 'MAIN100'.
IF g_custom_container IS INITIAL.
CREATE OBJECT grid1
EXPORTING i_parent = g_custom_container.
 CALL METHOD grid1->set_table_for_first_display
 EXPORTING
 i_structure_name = '/bic/azincosvi00'
 CHANGING
 it_outtab = alv_itab.
 CREATE OBJECT event_receiver.
 SET HANDLER event_receiver->handle_user_command FOR grid1.
 SET HANDLER event_receiver->handle_toolbar FOR grid1.
 CALL METHOD grid1->set_toolbar_interactive.
ENDIF.
ENDMODULE. " PBO OUTPUT
*& Module PAI INPUT
 text
MODULE alv_pai INPUT.
save_ok = ok_code.
CLEAR ok_code.
CASE save_ok.
 WHEN 'EXIT'.
 LEAVE PROGRAM.
 WHEN 'CANCEL'.
 LEAVE PROGRAM.
 WHEN 'BACK'.
 CALL METHOD grid1->free.
 CALL SELECTION-SCREEN '1000'.
 WHEN OTHERS.
 " DO NOTHING.
ENDCASE.
ENDMODULE. " PAI INPUT
*& Module 200_PBO OUTPUT
 text
MODULE 200_PBO OUTPUT.
Write at 5: 'Increase DSP Sales'.
Skip 1.
Write at 5: 'USER'.
Write at 15:'PROGRAM CODE'.
WRITE AT 25:'SUB CODE'.
WRITE AT 37:'DISCOUNTED SALES'.
WRITE AT 67:'PAY AMOUNT US'.
WRITE AT 80:'REASON'.
ENDMODULE. " 200_PBO OUTPUT

There are some problems with ok_code, you need to assign sy-ucomm at each module. Also the main problem was that you needed leave to list-processing and suppress dialog before writing. However, when you do this the screens calls change a little. You also needed to use the container correctly. Apply the correctons below and you'll be all set. Unfortunaley you will have to play around with calling the sel. screen (1000) from screen 100, I don't think call sel. screen 1000 will work properly there (you might need a custome screen instead). The user may be okay with kicking back out to sa38 after the alv display, however. Good luck and don't listen to the clowns' comments above. I once worked in that circus, Hey Guys.
Instead of this:
METHOD handle_user_command.
CASE e_ucomm.
WHEN 'CREATE'.
Insert /bic/azincosvi00 from wa_credit.
CALL METHOD grid1->free.
SET SCREEN '200'.
WHEN 'OTHERS'.
" DO NOTHING
ENDCASE.
ENDMETHOD.
DO THIS:
METHOD handle_user_command.
 CASE e_ucomm.
 WHEN 'CREATE'.
 Insert /bic/azincosvi00 from wa_credit.
 CALL SCREEN 200.
 WHEN 'OTHERS'.
 " DO NOTHING
 ENDCASE.
ENDMETHOD. "handle_user_command
Instead of this:
*Create ALV Grid to show the user what the record will look like in which they are creating.
Append wa_credit to alv_itab.
CALL SCREEN 100.
DO THIS:
IF g_custom_container IS INITIAL.
 CREATE OBJECT g_custom_container EXPORTING dynnr = '100'
 repid = sy-cprog
 ratio = '95'.
ENDIF.
IF grid1 IS INITIAL.
 CREATE OBJECT grid1 EXPORTING i_parent = g_custom_container.
ENDIF.
CREATE OBJECT event_receiver.
SET HANDLER event_receiver->handle_user_command FOR grid1.
SET HANDLER event_receiver->handle_toolbar FOR grid1.
SET SCREEN 100.
CALL SCREEN 100.
Instead of this:
MODULE alv_pbo OUTPUT.
SET PF-STATUS 'MAIN100'.
SET TITLEBAR 'MAIN100'.
IF g_custom_container IS INITIAL.
CREATE OBJECT grid1
EXPORTING i_parent = g_custom_container.
CALL METHOD grid1->set_table_for_first_display
EXPORTING
i_structure_name = '/bic/azincosvi00'
CHANGING
it_outtab = alv_itab.
CREATE OBJECT event_receiver.
SET HANDLER event_receiver->handle_user_command FOR grid1.
SET HANDLER event_receiver->handle_toolbar FOR grid1.
CALL METHOD grid1->set_toolbar_interactive.
ENDIF.
ENDMODULE. " PBO OUTPUT
DO THIS:
MODULE alv_pbo OUTPUT.
SET PF-STATUS 'MAIN100'.
SET TITLEBAR 'MAIN100'.
CALL METHOD grid1->set_table_for_first_display
EXPORTING
 i_structure_name = '/bic/azincosvi00'
CHANGING
 it_outtab = alv_itab.
CALL METHOD grid1->set_toolbar_interactive.
ENDMODULE. " PBO OUTPUT
Instead of this:
MODULE alv_pai INPUT.
save_ok = ok_code.
CLEAR ok_code.
CASE save_ok.
WHEN 'EXIT'.
LEAVE PROGRAM.
WHEN 'CANCEL'.
LEAVE PROGRAM.
WHEN 'BACK'.
CALL METHOD grid1->free.
CALL SELECTION-SCREEN '1000'.
WHEN OTHERS.
" DO NOTHING.
ENDCASE.
ENDMODULE. " PAI INPUT
DO THIS:
MODULE alv_pai INPUT.
ok_code = sy-ucomm.
CASE ok_code.
 WHEN 'EXIT'.
 LEAVE PROGRAM.
 WHEN 'CANCEL'.
 LEAVE PROGRAM.
 WHEN 'BACK'.
 CALL METHOD grid1->free.
 LEAVE PROGRAM.
* CALL SELECTION-SCREEN '1000'.
 WHEN OTHERS.
 " DO NOTHING.
ENDCASE.
ENDMODULE. " PAI INPUT
Instead of this:
MODULE 200_PBO OUTPUT.
Write at 5: 'Increase DSP Sales'.
Skip 1.
Write at 5: 'USER'.
Write at 15:'PROGRAM CODE'.
WRITE AT 25:'SUB CODE'.
WRITE AT 37:'DISCOUNTED SALES'.
WRITE AT 67:'PAY AMOUNT US'.
WRITE AT 80:'REASON'.
ENDMODULE. " 200_PBO OUTPUT
DO THIS:
*Take care of all your list output here
LEAVE TO LIST-PROCESSING.
SET PF-STATUS 'MAIN200'.
SET TITLEBAR 'MAIN200'.
SUPPRESS DIALOG.
WRITE AT 5: 'Increase DSP Sales'.
SKIP 1.
WRITE AT 5: 'USER'.
WRITE AT 15:'PROGRAM CODE'.
WRITE AT 25:'SUB CODE'.
WRITE AT 37:'DISCOUNTED SALES'.
WRITE AT 67:'PAY AMOUNT US'.
WRITE AT 80:'REASON'.
ENDMODULE. " 200_PBO OUTPUT
Add Moule:
MODULE 200_pai INPUT.
ok_code = sy-ucomm.
CASE ok_code.
 WHEN 'EXIT'.
 LEAVE PROGRAM.
 WHEN 'CANCEL'.
 LEAVE PROGRAM.
 WHEN 'BACK'.
 CALL SCREEN 100.
 WHEN OTHERS.
 " DO NOTHING.
ENDCASE.
ENDMODULE. " 200_PAI INPUT

ALV not getting refreshed when call screen is executed second time

I have 2 screens 9001 and 9002. In 9001 , I am displaying the fields of a database table in a Table Control. The user has to select some of those fields and click on a button 'Generate ALV'. After clicking , the control navigates to 9002 where I am displaying ALV with data in the selected fields(the other fields remain empty). (using custom container)
Now there is BACK button in 9002 where i have written LEAVE TO SCREEN 9001. After this if the user again make changes in column selection and click on 'Generate ALV' , then still the old alv data is displayed. (Mind you the structure of alv is same , only the selected fields should show data).
I am using REFRESH_ALV_DISPLAY also and when i tested this function independently , its working fine (although for interactive alv in the same screen).
I am making use of <fs> for dynamic internal table and i checked it using breakpoints , during the 2nd time , it contains the correctly updated data so i think the problem lies with alv
Kindly check this code
MODULE STATUS_9002 OUTPUT.
SET PF-STATUS 'ZALV'.
* SET TITLEBAR 'xxx'.
CREATE OBJECT C_CONT
 EXPORTING
 CONTAINER_NAME = 'CUST_CONT'
IF SY-SUBRC <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
IF OBJ_ALV IS INITIAL.
CREATE OBJECT OBJ_ALV
 EXPORTING
 I_PARENT = C_CONT
CALL METHOD OBJ_ALV->SET_TABLE_FOR_FIRST_DISPLAY
 EXPORTING
 I_STRUCTURE_NAME = INP_TABLE
 CHANGING
 IT_OUTTAB = <itab>
ELSE.
 CALL METHOD OBJ_ALV->REFRESH_TABLE_DISPLAY
ENDIF.
ENDMODULE. " STATUS_9002 OUTPUT
Edited by: amber22 on Sep 16, 2011 6:45 PM

Amber,
Something like:
*& Module STATUS_9001 OUTPUT
MODULE status_9001 OUTPUT.
SET PF-STATUS 'ST9001'.
ENDMODULE. " STATUS_9001 OUTPUT
*& Module USER_COMMAND_9001 INPUT
MODULE user_command_9001 INPUT.
CASE sy-ucomm.
 WHEN 'GEN'.
 SELECT * FROM spfli INTO TABLE gt_outtab.
 CALL SCREEN 9002.
 WHEN 'BACK'.
 LEAVE.
ENDCASE.
ENDMODULE. " USER_COMMAND_9001 INPUT
*& Module STATUS_9002 OUTPUT
MODULE status_9002 OUTPUT.
SET PF-STATUS 'ST9002'.
IF obj_alv IS INITIAL.
 CREATE OBJECT c_cont
 EXPORTING
 container_name = 'CUST_CONT'.
 CREATE OBJECT obj_alv
 EXPORTING
 i_parent = c_cont.
 CALL METHOD obj_alv->set_table_for_first_display
 EXPORTING
 i_structure_name = 'SPFLI'
 CHANGING
 it_outtab = gt_outtab.
ELSE.
 CALL METHOD obj_alv->refresh_table_display.
ENDIF.
ENDMODULE. " STATUS_9002 OUTPUT
*& Module USER_COMMAND_9002 INPUT
MODULE user_command_9002 INPUT.
CASE sy-ucomm.
 WHEN 'BACK'.
 CALL METHOD: obj_alv->free, c_cont->free.
 CLEAR: obj_alv, c_cont.
 CALL METHOD cl_gui_cfw=>flush.
 LEAVE TO SCREEN 9001.
ENDCASE.
ENDMODULE. " USER_COMMAND_9002 INPUT
Altough it's not a really nice solution... Why using 2 screens for example? you could use two containers instead...
Also I would recommand playing with the new salv class for your grids.
Anyway don't hesitate to give feed-back.
Kr,
m.

Refreshing of a screen....

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