ABAP simple question

[Former Member]

Hello everyone,

I have a question. In my Z program I have a zprogramname_top where my variables/tables are defined and a zprogramname_f01 where i make calculations.

in f01, i call another form where I fill a table, but when I retunr to the calling perform, that table is empty.

What am I doing wrong?

Example:

Data declaration:

data: ti_ftpost LIKE ftpost OCCURS 0 WITH HEADER LINE.

F01:

form prepare_table.

loop at it_items.

perform fill_table using it_items-pos

changing ti_ftpost

endloop.

endform.

form fill_table using p_item

changing ti_ftpost.

ti_ftpost-item = p_item.

append ti_ftpost.

clear ti_ftpost.

endform.

Moderator message: please use more descriptive subject lines and code tags from now on.

Edited by: Thomas Zloch on Jul 2, 2010 2:24 PM

[Former Member]

Hi John ,

Please try using TABLES instead of CHANGING for the subroutine.

Regards,

Arun

[SuhaSaha]

Is your table it_items populated ?

[Former Member]

Dear Suhas Saha.

my table it_items is populated. Has I said, in the form fill_table my table is filled, but when the program returns to form prepare_table the table content is empty.

Thanks for your help.

[former_member189059]

Hello,

Try these changes

data: ti_ftpost LIKE ftpost OCCURS 0 WITH HEADER LINE.
types: t_post like ti_ftpost. " added


F01:
form prepare_table.

loop at it_items.
perform fill_table using it_items-pos
changing ti_ftpost[]. " changed
endloop.

endform.

form fill_table using p_item
changing ti_ftpost type t_post. " changed

data: wa_post like line of ti_ftpost. " added

wa_ftpost-item = p_item. " changed
append wa_ftpost to ti_ftpost. " changed
clear wa_ftpost. " changed

endform.

[Former Member]

Hello,

I tried to do like you said Kris Donald, but I get the following error:

In perform fill_table the actual parameter "ti_ftpost" is incompatible with the formal parameter "ti_ftpost"

How can I solve this?

[Former Member]

U need to defing in FORM changing ti_ftpost type gty_t_ftpost.

where gty_t_post is declared before as:-

Types: gty_t_ftpost type table of ftpost.

This is done because in perform u r passing the table and while declaring in form u were declaring wrk area whereas it shd be table type.

Edited by: vijetasap on Jul 2, 2010 9:21 AM

[Former Member]

Thanks for the quick reply vijetasap,

I still get the same error, saying that the parameter is incompatible. My code is like this:

TOP:
data: ti_ftpost LIKE ftpost OCCURS 0 WITH HEADER LINE.

types: t_post type table of ftpost.


F01:
perform fill_table using it_items-pos
changing ti_ftpost[].

form fill_table using p_item
                      changing ti_ftpost type t_post

[Former Member]

what is the type of it_items-pos? Is it_items table with header line? Does the length of pos equal to 1 ? Check its type also and use same type in Form using parameter

[former_member189059]

Hello,

Try this

data: ti_ftpost like ftpost occurs 0 with header line.
types: t_post type table of ftpost.

data: begin of wa_items occurs 0,
  pos type i,
  end of wa_items.
  data: it_items like wa_items OCCURS 0 WITH HEADER LINE.

*&---------------------------------------------------------------------*
*&      Form  prepare_table
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
form prepare_table.

  loop at it_items.
    perform fill_table using it_items-pos
    changing ti_ftpost[].
  endloop.

endform.                    

*&---------------------------------------------------------------------*
*&      Form  fill_table
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*      -->P_ITEM     text
*      -->TI_FTPOST  text
*----------------------------------------------------------------------*
form fill_table using p_item
changing ti_ftpost type t_post.

  data: wa_post like line of ti_ftpost.

  wa_post-fnam = p_item.
  append wa_post to ti_ftpost. 
  clear wa_post. 

endform.                    "fill_table

Though, I noticed that the type ftpost doesn't have a field named item.. in my ECC6 server at least

[Former Member]

Hi John ,

Please try using TABLES instead of CHANGING for the subroutine.

Regards,

Arun

[Former Member]

tables is obsolete now instead we should use changing with table type as type.

[Former Member]

yes tables is obsolete., but the table 'ti_ftpost' is a table with header line and in the subroutine the header is used to append data , so i dont think changing helps.

[Former Member]

John..

a simple solution... i think problem is with your clear staetment..

ok.. obsolete thing is to be considered later.. but just to make your code work do this.

form fill_table using p_item
changing ti_ftpost.

data : ls_post type ftpost. "==>added

clear ls_post. "==>changed
ls_post-item = p_item. "==>chaned 
append ls_post to ti_ftpost. "==>changed

endform.

[SuhaSaha]

>

> a simple solution... i think problem is with your clear statement.

Your understanding of the CLEAR statement is not correct for internal tables with header lines.

SAP says:

If dobj is an internal table with a header line, you must specify dobj[] to delete the rows, otherwise only the header line will be deleted. 

So your statement is incorrect. For me the problem is not with the CLEAR.

BR,

Suhas

[Former Member]

I thought this was an easy question, but it looks like it was not.

I have got it working with the use of obsolete.

Thanks for everyone's help.