ALV and dynamic fields

[Former Member]

Hallo colleagues,

I have to create a dynamic structure and show it within an ALV.

Therefore I have created my stuctrure like this:

MOVE 'COMP1' TO gw_component-name.

gw_component-type ?= cl_abap_elemdescr=>get_string( ).

INSERT gw_component INTO TABLE gt_components.

MOVE 'COMP2' TO gw_component-name.

gw_component-type ?= cl_abap_elemdescr=>get_i( ).

INSERT gw_component INTO TABLE gt_components.

• get structure descriptor -> GR_STRUCTDESCR

gr_structdescr ?= cl_abap_structdescr=>create( gt_components ).

• create work area of structure GR_STRUCTDESCR -> GR_WA

CREATE DATA gr_wa TYPE HANDLE gr_structdescr.

ASSIGN gr_wa->* TO <gw_wa>.

So now I have my dynamic structure, but how i can create a field catalog, which fit into the function module 'REUSE_ALV_FIELDCATALOG_MERGE' and 'REUSE_ALV_LIST_DISPLAY'?

Any help?

Thanks in advance

Irian

[Former Member]

Hi,

REPORT zmtable LINE-SIZE 255

LINE-COUNT 65.

----

---

• Program written by Vijay Chaitanya Raju

• Maintain Table dynamicly (Table name is entered on Selection Screen)

• Very powerfull program. Please maintain authorisation access and

• restrict maintenance to Z-tables

• Version 6.20 and up

• (can be used in 4.6C with some modifications to block try - endtry

• and classes)

----

---

• Enhanced functionality with dynamic selection screen

----

---

TABLES: sscrfields. "Fields on selection screens

TYPE-POOLS rsds.

DATA ds_clauses TYPE rsds_where.

DATA: BEGIN OF ifield OCCURS 0,

fieldname LIKE dd03l-fieldname,

position LIKE dd03l-position,

keyflag LIKE dd03l-keyflag,

datatype LIKE dd03l-datatype.

DATA: END OF ifield.

DATA: sl_step LIKE sy-tabix,

ss_step LIKE sy-subrc,

ss_act(1) TYPE c,

sl_lines LIKE sy-tfill,

sl_status LIKE sy-subrc,

sl_subrc LIKE sy-subrc,

sl_update(1) TYPE c,

sl_mandt(1) TYPE c,

len(6) TYPE n,

f_value(255) TYPE c,

sl_datum LIKE sy-datum,

sl_uzeit LIKE sy-uzeit,

price1(15) TYPE c,

price2(15) TYPE c,

mess(60) TYPE c,

d_stat LIKE sy-subrc,

m_stat LIKE sy-subrc,

slchar(6) TYPE c.

DATA: ref_ptr TYPE REF TO cx_root. "Root class more common

DATA: text TYPE string.

DATA: sl_index LIKE sy-tabix.

DATA: zauth LIKE dd02l-tabname.

DATA: num TYPE i,

max_len TYPE i,

check_len TYPE i,

sl_sel(1) TYPE c.

TYPE-POOLS: icon.

----

---

• SELECTION-SCREEN.

----

---

SELECTION-SCREEN BEGIN OF LINE.

• text-012 - 'Table Name'

SELECTION-SCREEN COMMENT 1(25) text-012.

PARAMETERS: tabname LIKE dd02l-tabname DEFAULT 'ZSCARE'.

• text-003 - 'Selection'

SELECTION-SCREEN PUSHBUTTON 75(9) text-003 USER-COMMAND sta1.

SELECTION-SCREEN END OF LINE.

• numrows(text) - 'Max Number of ROWS'

PARAMETERS: numrows LIKE sy-subrc DEFAULT '100'.

************************************************************************

• At Selection-Screen *

************************************************************************

AT SELECTION-SCREEN.

CASE sscrfields-ucomm.

WHEN 'STA1'.

CLEAR sl_sel.

CALL FUNCTION 'ZSTAN_SELECTIONS'

EXPORTING

tabname = tabname

IMPORTING

ds_clauses = ds_clauses

EXCEPTIONS

table_not_valid = 1

other_error = 2

OTHERS = 3.

IF sy-subrc = 0.

sl_sel = 'X'.

ENDIF.

ENDCASE.

************************************************************************

*At Selection-Screen Output *

************************************************************************

AT SELECTION-SCREEN OUTPUT.

SELECT SINGLE tabname

INTO tabname

FROM dd02l

WHERE tabname = tabname

AND as4local = 'A'

AND ( tabclass = 'TRANSP' OR tabclass = 'POOL'

OR tabclass = 'CLUSTER' ).

IF sy-subrc <> 0.

MESSAGE 'Table is not valid' TYPE 'S'.

RETURN.

ENDIF.

----

---

• START-OF-SELECTION.

----

---

START-OF-SELECTION.

DEFINE: acheck.

zauth = 'ZTABAUTH'.

select single statu

into sl_update

from (zauth)

where tabname = tabname

and bname = sy-uname.

if sy-subrc <> 0.

message 'You are not authorized to view this table' type 'S'.

return.

endif.

END-OF-DEFINITION.

SELECT SINGLE tabname

INTO tabname

FROM dd02l

WHERE tabname = tabname

AND as4local = 'A'

AND ( tabclass = 'TRANSP' OR tabclass = 'POOL'

OR tabclass = 'CLUSTER' ).

IF sy-subrc <> 0.

MESSAGE 'Table is not valid' TYPE 'S'.

RETURN.

ENDIF.

DATA: ptr_itab TYPE REF TO data.

FIELD-SYMBOLS: <fs_itab> TYPE STANDARD TABLE. "ANY TABLE.

CREATE DATA ptr_itab TYPE STANDARD TABLE OF (tabname).

ASSIGN ptr_itab->* TO <fs_itab>.

• For DELETION

DATA: ptr_itd TYPE REF TO data.

FIELD-SYMBOLS: <fs_itd> TYPE STANDARD TABLE.

CREATE DATA ptr_itd TYPE STANDARD TABLE OF (tabname).

ASSIGN ptr_itd->* TO <fs_itd>.

• For MODIFICATION

DATA: ptr_itm TYPE REF TO data.

FIELD-SYMBOLS: <fs_itm> TYPE STANDARD TABLE.

CREATE DATA ptr_itm TYPE STANDARD TABLE OF (tabname).

ASSIGN ptr_itm->* TO <fs_itm>.

DATA: ptr_wtab TYPE REF TO data.

FIELD-SYMBOLS: <fs_wtab> TYPE ANY.

CREATE DATA ptr_wtab TYPE (tabname).

ASSIGN ptr_wtab->* TO <fs_wtab>.

DATA: itabname(15) TYPE c.

itabname = '<fs_wtab>'.

• Standard list status with 'SAVE' button

SET PF-STATUS 'STLI'.

CLEAR sl_update.

• Maintain authorisation access in table ZTABAUTH

• Key fields: tabname - Table name

• bname = sy-uname - User name

• statu = 'X' - maintain

• ' ' - view

• Check authorisation access

acheck.

SELECT fieldname position keyflag datatype

INTO TABLE ifield

FROM dd03l

WHERE tabname = tabname

AND fieldname NOT LIKE '.INCLU%'

ORDER BY position.

FIELD-SYMBOLS: <f1> TYPE ANY.

DATA: tab_field(60) TYPE c,

sline LIKE sy-lisel.

DATA: field_attr LIKE dfies.

DATA: BEGIN OF tfield_attr OCCURS 0.

INCLUDE STRUCTURE field_attr.

DATA: END OF tfield_attr.

LOOP AT ifield.

CALL FUNCTION 'G_FIELD_READ'

EXPORTING

table = tabname

fieldname = ifield-fieldname

text_flag = 'X'

IMPORTING

field_attr = field_attr.

tfield_attr = field_attr.

APPEND tfield_attr.

ENDLOOP.

IF sl_sel = 'X'.

SELECT *

FROM (tabname)

INTO TABLE <fs_itab> UP TO numrows ROWS

WHERE (ds_clauses-where_tab).

ELSE.

SELECT *

FROM (tabname)

INTO TABLE <fs_itab> UP TO numrows ROWS.

ENDIF.

DESCRIBE TABLE <fs_itab> LINES sl_lines.

• Show two extra lines to allow addition up to 2 new lines

IF sl_update = 'X'.

DO 2 TIMES.

APPEND INITIAL LINE TO <fs_itab>.

ENDDO.

ENDIF.

DATA: info(22) VALUE 'D - Delete, M - Modify'.

WRITE: / icon_information AS ICON QUICKINFO info.

WRITE ' '.

CLEAR check_len.

LOOP AT tfield_attr.

IF tfield_attr-datatype = 'CLNT'.

CONTINUE.

ENDIF.

len = tfield_attr-outputlen.

IF tfield_attr-keyflag = 'X'.

check_len = check_len + len + 1.

ENDIF.

IF tfield_attr-scrtext_m IS NOT INITIAL.

WRITE: AT (len) tfield_attr-scrtext_m COLOR 1.

ELSE.

WRITE: AT (len) tfield_attr-fieldtext COLOR 1.

ENDIF.

ENDLOOP.

CLEAR ss_step.

CLEAR ss_act.

LOOP AT <fs_itab> INTO <fs_wtab>.

IF sy-tabix LE sl_lines.

ss_step = 1.

ELSE.

CLEAR ss_step.

ENDIF.

• In field SS_STEP put D - to delete record

• M - to modify/add new record

IF sl_update = 'X'.

WRITE:/ icon_change AS ICON.

IF ss_step = 1.

WRITE: ss_act INPUT ON.

ELSE.

ss_act = 'M'.

WRITE: ss_act.

CLEAR ss_act.

ENDIF.

ELSE.

WRITE:/ icon_display AS ICON.

WRITE: ss_act COLOR 2.

ENDIF.

LOOP AT ifield.

• Maintain client dependant tables in the same client

IF ifield-datatype = 'CLNT'.

sl_mandt = 'X'.

CONTINUE.

ENDIF.

CONCATENATE itabname '-' ifield-fieldname INTO tab_field.

ASSIGN (tab_field) TO <f1>.

IF sl_update = 'X'.

IF ifield-keyflag = 'X' AND ss_step IS NOT INITIAL.

WRITE: <f1> COLOR 4.

ELSE.

WRITE: <f1> INPUT ON.

ENDIF.

ELSE.

IF ifield-keyflag = 'X' AND ss_step IS NOT INITIAL.

WRITE: <f1> COLOR 4.

ELSE.

WRITE: <f1> COLOR 2.

ENDIF.

ENDIF.

UNASSIGN <f1>.

ENDLOOP.

ENDLOOP.

----

---

• END-OF-SELECTION.

----

---

END-OF-SELECTION.

----

---

• AT USER-COMMAND.

----

---

AT USER-COMMAND.

CASE sy-ucomm.

WHEN 'SAVE'.

IF sl_update = 'X'.

CLEAR: sl_step,

sl_status,

sl_subrc,

<fs_wtab>,

d_stat,

m_stat,

max_len.

REFRESH <fs_itd>.

REFRESH <fs_itm>.

DO.

IF sl_status <> 0.

EXIT.

ENDIF.

ADD 1 TO sl_step.

IF sl_subrc <> 0.

EXIT.

ENDIF.

CLEAR ss_step.

CLEAR ss_act.

READ LINE sl_step

FIELD VALUE ss_act INTO f_value.

sl_subrc = sy-subrc.

IF f_value(1) EQ 'D' OR f_value(1) = 'd'.

ss_step = 1. "Delete

ELSEIF f_value(1) EQ 'M' OR f_value(1) = 'm'.

ss_step = 2. "Modify

ELSE.

CLEAR ss_step.

ENDIF.

CHECK sy-lisel(3) = '0Z '.

IF ss_step GT 0.

CLEAR sline.

sline = sy-lisel+5(250).

max_len = 250.

CHECK sline(check_len) <> ' '.

LOOP AT tfield_attr.

CONCATENATE itabname '-' tfield_attr-fieldname

INTO tab_field.

ASSIGN (tab_field) TO <f1>.

IF tfield_attr-fieldname = 'MANDT'.

<f1> = sy-mandt.

ELSE.

CLEAR f_value.

IF max_len LT tfield_attr-outputlen.

max_len = 255.

ADD 1 TO sl_step.

READ LINE sl_step.

sline = sy-lisel.

ENDIF.

f_value = sline(tfield_attr-outputlen).

max_len = max_len - tfield_attr-outputlen - 1.

IF tfield_attr-inttype = 'D'.

IF f_value CO ' 0./-'.

CLEAR sl_datum.

<f1> = sl_datum.

ELSE.

CALL FUNCTION 'CONVERT_DATE_INPUT'

EXPORTING

input = f_value

plausibility_check = 'X'

IMPORTING

output = sl_datum

EXCEPTIONS

plausibility_check_failed = 1

wrong_format_in_input = 2

OTHERS = 3.

IF sy-subrc = 0.

<f1> = sl_datum.

ELSE.

text = 'Invalid Date'.

sl_status = 1.

EXIT.

ENDIF.

ENDIF.

ELSEIF tfield_attr-inttype = 'T'.

IF f_value CO ' 0:'.

CLEAR sl_uzeit.

<f1> = sl_uzeit.

ELSE.

CALL FUNCTION 'CONVERT_TIME_INPUT'

EXPORTING

input = f_value

plausibility_check = 'X'

IMPORTING

output = sl_uzeit

EXCEPTIONS

plausibility_check_failed = 1

wrong_format_in_input = 2

OTHERS = 3.

IF sy-subrc = 0.

<f1> = sl_uzeit.

ELSE.

text = 'Invalid Time'.

sl_status = 1.

EXIT.

ENDIF.

ENDIF.

ELSEIF tfield_attr-inttype = 'C'.

TRANSLATE f_value TO UPPER CASE.

<f1> = f_value.

ELSE.

TRANSLATE f_value USING ', '.

CONDENSE f_value NO-GAPS.

TRY.

<f1> = f_value.

CATCH cx_root INTO ref_ptr.

text = ref_ptr->get_text( ).

sl_status = 1.

EXIT.

ENDTRY.

ENDIF.

SHIFT sline BY tfield_attr-outputlen PLACES.

SHIFT sline LEFT.

ENDIF.

UNASSIGN <f1>.

ENDLOOP.

IF sl_status = 0.

CASE ss_step.

WHEN 1. "Delete

ADD 1 TO d_stat.

APPEND <fs_wtab> TO <fs_itd>.

WHEN 2. "Modify

ADD 1 TO m_stat.

APPEND <fs_wtab> TO <fs_itm>.

ENDCASE.

ENDIF.

ENDIF.

ENDDO.

IF sl_status = 0.

IF d_stat IS NOT INITIAL.

slchar = d_stat.

CONCATENATE 'Deleted -' slchar 'record.' INTO text

SEPARATED BY space.

DELETE (tabname) FROM TABLE <fs_itd>.

ENDIF.

IF m_stat IS NOT INITIAL.

slchar = m_stat.

CONCATENATE text 'Modified -' slchar 'record.' INTO text

SEPARATED BY space.

MODIFY (tabname) FROM TABLE <fs_itm>.

ENDIF.

IF d_stat IS INITIAL AND m_stat IS INITIAL.

MESSAGE 'No changes were done' TYPE 'S'.

ELSE.

MESSAGE text TYPE 'S'.

ENDIF.

LEAVE.

ELSE.

MESSAGE text TYPE 'I'.

EXIT.

ENDIF.

ELSE.

LEAVE.

ENDIF.

ENDCASE.

*--

---

END--

---

• Below is Function for a Dynamic Selection Screen

FUNCTION zstan_selections.

*"----

---

""Local interface:

*" IMPORTING

*" VALUE(TABNAME) LIKE DD02L-TABNAME DEFAULT 'ZSCARE'

*" EXPORTING

*" VALUE(DS_CLAUSES) TYPE RSDS_WHERE

*" EXCEPTIONS

*" TABLE_NOT_VALID

*" OTHER_ERROR

*"----

---

DATA texpr TYPE rsds_texpr.

DATA twhere TYPE rsds_twhere.

DATA trange TYPE rsds_trange.

DATA BEGIN OF qcat. "Selections View for

INCLUDE STRUCTURE rsdsqcat. "Free Selectoptions

DATA END OF qcat.

DATA BEGIN OF tabs OCCURS 10.

INCLUDE STRUCTURE rsdstabs.

DATA END OF tabs.

DATA BEGIN OF fields OCCURS 10.

INCLUDE STRUCTURE rsdsfields.

DATA END OF fields.

DATA BEGIN OF efields OCCURS 10.

INCLUDE STRUCTURE rsdsfields.

DATA END OF efields.

DATA selid LIKE rsdynsel-selid.

DATA actnum LIKE sy-tfill.

DATA title LIKE sy-title VALUE 'Selection Screen'.

DATA: maxnum LIKE sy-subrc VALUE '69'.

CLEAR tabs.

tabs-prim_tab = tabname.

COLLECT tabs.

DATA: position LIKE dd03l-position.

DATA: keyflag LIKE dd03l-keyflag.

CLEAR fields.

fields-tablename = tabname.

fields-sign = 'I'.

DATA: step LIKE sy-subrc.

SELECT fieldname keyflag position

INTO (fields-fieldname, keyflag, position)

FROM dd03l

WHERE tabname = tabname

AND fieldname NOT LIKE '.INCLU%'

AND datatype NE 'CLNT'

ORDER BY position.

ADD 1 TO step.

CHECK step LE maxnum.

IF keyflag <> 'X'.

efields = fields.

APPEND efields.

ENDIF.

APPEND fields.

ENDSELECT.

IF sy-subrc <> 0.

RAISE table_not_valid.

ENDIF.

CALL FUNCTION 'FREE_SELECTIONS_INIT'

EXPORTING

expressions = texpr

kind = 'F'

IMPORTING

selection_id = selid

expressions = texpr

where_clauses = twhere

field_ranges = trange

number_of_active_fields = actnum

TABLES

tables_tab = tabs

fields_tab = fields

fields_not_selected = efields

EXCEPTIONS

fields_incomplete = 01

fields_no_join = 02

field_not_found = 03

no_tables = 04

table_not_found = 05

expression_not_supported = 06

incorrect_expression = 07

illegal_kind = 08

area_not_found = 09

inconsistent_area = 10

kind_f_no_fields_left = 11

kind_f_no_fields = 12

too_many_fields = 13.

IF sy-subrc = 0.

CALL FUNCTION 'FREE_SELECTIONS_DIALOG'

EXPORTING

selection_id = selid

title = title

IMPORTING

where_clauses = twhere

expressions = texpr

field_ranges = trange

number_of_active_fields = actnum

TABLES

fields_tab = fields

EXCEPTIONS

internal_error = 01

no_action = 02

no_fields_selected = 03

no_tables_selected = 04

selid_not_found = 05.

IF sy-subrc = 0.

CLEAR ds_clauses.

MOVE tabname TO ds_clauses-tablename.

READ TABLE twhere WITH KEY ds_clauses-tablename INTO ds_clauses.

IF sy-subrc <> 0.

RAISE other_error.

ENDIF.

ELSE.

RAISE other_error.

ENDIF.

ELSE.

RAISE other_error.

ENDIF.

ENDFUNCTION.

Regards,

Shiva

[Former Member]

Hi Ben,

Iam not sure but what i feel is

1 -the dynamic internal sturcture is <ga_wa>.

2- move the <ga_wa> to CT_FIELDCAT TYPE SLIS_T_FIELDCAT_ALV.

3- passthe CT_FIELDCAT to FM.

you can try and see.

Thanks

Aditya

[Former Member]

Hi Adatya,

I have the same idea. But how can I "move the <ga_wa> to CT_FIELDCAT TYPE SLIS_T_FIELDCAT_ALV."?