Read dynamic field symbol Work Area before append to dynamic table

[Former Member]

Hi experts:

I have a dynamic work area but before doing an append to the dynamic table, I need to do some validation on some fields of the work area in order to decide to append it or not, but I don't know how...

More or less this is the example

loop at so_kschl.

field = so_kschl-low.

if <t_dyntable>-field = 0. "if the value of this field in dinamic table is 0.

• don't append

else.

APPEND <fs_dyntable> TO <t_dyntable>.

endif.

endloop.

Thank you very much for your help.

Miriam

[Former Member]

Check this example, you read the component of the dynamic work area and assign it to a field-symbols. In this case, I validate that the entry is always 'a'.

DATA: i_lvc TYPE lvc_t_fcat WITH HEADER LINE,
      i_table TYPE REF TO data,
      l_style TYPE lvc_fname,
      l_warea TYPE REF TO data,
      l_name(7) VALUE 'VARCHAR'..
FIELD-SYMBOLS: <fs> TYPE table,
              <fs2> TYPE ANY,
              <fs3> TYPE ANY.
PARAMETERS p_char TYPE c LOWER CASE.

START-OF-SELECTION.
  i_lvc-fieldname = 'Varchar'.
  i_lvc-inttype = 'C'.
  i_lvc-intlen = 1.
  APPEND i_lvc.

  CALL METHOD cl_alv_table_create=>create_dynamic_table
  EXPORTING
  it_fieldcatalog = i_lvc[]
  IMPORTING
  ep_table = i_table
  e_style_fname = l_style.
  ASSIGN i_table->* TO <fs>.

  CREATE DATA l_warea LIKE LINE OF <fs>.
  ASSIGN l_warea->* TO <fs2>.

  <fs2> = p_char.
  ASSIGN COMPONENT l_name OF STRUCTURE <fs2> TO <fs3>.
  IF <fs3> = 'a'.
    WRITE: 'Component VARCHAR is a'.
*  APPEND <fs2> TO <fs>.
  ELSE.
    WRITE: 'Component VARCHAR is not a'.
  ENDIF.

[Former Member]

I think we're very close, in your example the append is done before, and I need to read the work area before been inserted. Here my code trying to use your code:

IF NOT so_kschl IS INITIAL.

LOOP AT so_kschl WHERE option = 'EQ'.

ASSIGN COMPONENT so_kschl-low OF STRUCTURE <fs_dyntable>

TO <fs_field>.

ENDLOOP.

ENDIF.

The column name I want to read from de work area <fs_dyntable> is in so_kschl-low, and I need to know the value of this field.

Normally with an internal table I would do this:

lv_value = itab-pb00.

if lv_value = 0.

do something

endif.

I hope my explanation is clear. 😃

[Former Member]

fs_dyntable is the work area? Looks like the name of a table O_o

If fs_dyntable has a component called LOW, then this is the code, but I don't think I'm understanding your requirement

IF NOT so_kschl IS INITIAL. 
LOOP AT so_kschl WHERE option = 'EQ'. 
ASSIGN COMPONENT 'LOW' OF STRUCTURE <fs_dyntable>
TO <fs_field>. 
ENDLOOP. 
ENDIF. 

[Former Member]

so_kschl is a select option and supose so_kschl-low has the value = 'PB00'

And the structure <fs_dyntable> has a column PB00, and I want to get the value of this column, something like this:

lv_value = <fs_dyntable>-PB00

Thank you very much for your replies, it's helping me.

[Former Member]

Ok, then you had it right, it should work