Declaring multiple dynamic internal tables

[Former Member]

Hi,

I'm trying to use function REUSE_ALV_BLOCK_LIST_APPEND to show multiple ALV's on a page. I however need to run this function multiple times, each time with a different internal tables (the number of these tables is never the same). What is the best method to declare a varying amount of internal tables?

I've searched the forum but couldn't find what I wanted. If you could point me to a link or in the right direction that would be great.

CALL FUNCTION 'REUSE_ALV_BLOCK_LIST_APPEND'
  EXPORTING
    it_fieldcat                = it_alvfc
    is_layout                  = gp_layout
    i_tabname                  = 'GT_GETDATA'
    it_events                  = gt_alv_event
  TABLES
    t_outtab                   = <dyn_table>
  EXCEPTIONS
    program_error              = 1
    maximum_of_appends_reached = 2
    OTHERS                     = 3.

First run of FM: <dyn_table> refers to certain data

second run: <dyn_table> refers to new data

third run <dyn_table> refers to different data again

Thanks

Edited by: Hin Lai on Dec 22, 2010 9:15 PM

Edited by: Hin Lai on Dec 22, 2010 9:17 PM

[Former Member]

Hi,

I would suggest you to follow as below. Here you need to create dynamic internal table names in a pattern like

<dyn_table_1>, <dyn_table_2> and <dyn_table_3>.........etc. One more i didnpt check for syntax errors for below code.

I am pointing you to provide a possibility. I used this approach for condition type value search for any given codition type access sequense and context.

DATA : L_TMPREF TYPE REF TO DATA.

1. Determine how many table to show variable LV_NO.

2. DO LV_NO TIMES.

concatenate '<dyn_table_' LV_NO '>' into LV_NAME.

CREATE DATA L_TMPREF LIKE (LV_NAME).

ASSIGN L_TMPREF->* TO <FS_TAB>.

CALL FUNCTION 'REUSE_ALV_BLOCK_LIST_APPEND'

EXPORTING

it_fieldcat = it_alvfc

is_layout = gp_layout

i_tabname = LV_NAME

it_events = gt_alv_event

TABLES

t_outtab = <FS_TAB>.

EXCEPTIONS

program_error = 1

maximum_of_appends_reached = 2

OTHERS = 3.

ENDDO.

[former_member186491]

Hi Hin Lai,

You can achieve that by using one temporary and one final FIELD-SYMBOL.

Suppose, you have fixed scenarios and countings of ITAB, then, you can make use of CASE-ENDCASE otherwise IF-ENDIF would be used.

Now, Just based on business condition, pass your ITAB in temporary Field-Symbol and finally assign those values in Final Field-Symbol within the Condition-Block made by IF / CASE. Do remember to flush the values out before assigning.

This Final Field-Symbol can be passed in FM for ALV.

That's it. Hope this would serve your purpose.

Thanks.

Kumar Saurav.

[Former Member]

Kumar Saurav: I dont have fixed scenarios, I am able to find out how many internal tables I will need to declare dynamically though.

Srinivas: I've tried your idea and have come up with this.

  DATA: lv_dyn_tab  TYPE string,
        l_tmpref    TYPE REF TO data.
  FIELD-SYMBOLS: <fs1>, <fs2>, <fs3>.

LOOP AT gt_getdata.

    ASSIGN COMPONENT  'BLNCE'  OF STRUCTURE <dyn_wa> TO <fs1>.
    <fs1> =  gt_getdata-blnce.

    ASSIGN COMPONENT  'BELNR'  OF STRUCTURE <dyn_wa> TO <fs2>.
    <fs2> =  gt_getdata-belnr.

*   Append to the dynamic internal table
    CONCATENATE '<dyn_table_' gv_grp_counter '>' INTO lv_dyn_tab.
    CREATE DATA l_tmpref LIKE lv_dyn_tab.
    APPEND <dyn_wa> TO l_tmpref.

  ENDLOOP.

The problem here is that I cannot append to l_tmpref since it is not an internal table. How can I get around this?

The other section of my code is this:

  DO lv_no TIMES.

*   Create dynamic internal table and assign to FS
    CALL METHOD cl_alv_table_create=>create_dynamic_table
      EXPORTING
        it_fieldcatalog = it_fldcat
      IMPORTING
        ep_table        = new_table.

    ASSIGN new_table->* TO <dyn_table>.

*   Create dynamic work area and assign to FS
    CREATE DATA new_line LIKE LINE OF <dyn_table>.
    ASSIGN new_line->* TO <dyn_wa>.

  ENDDO.

How could I make this work?

Thanks

[Former Member]

I am still searching for an answer if anyone has any suggestions.

Thanks,