Dymanic Table

[Former Member]

Hello.

I want to create a table in an Abap program. I like that the table has a dynamic structure on execution time. Basically I like to add columns to the table in execution time.

If it is possible, would you gave me an example?

Thanks.

[Former Member]

Hi,

Check this example..

If you give the input as 3...IT will create 3 columns..

PARAMETERS: p_input TYPE i OBLIGATORY.

START-OF-SELECTION.

DATA: v_fieldname TYPE char30.

DATA: v_char TYPE numc4.

DATA: it_fldcat TYPE lvc_t_fcat.

DATA: wa_it_fldcat LIKE LINE OF it_fldcat.

DATA: gp_table TYPE REF TO data.

FIELD-SYMBOLS: <gt_table> TYPE table.

DO p_input TIMES.

v_fieldname = 'COL'.

v_char = sy-index.

CONCATENATE v_fieldname v_char INTO v_fieldname.

CONDENSE v_fieldname.

CLEAR wa_it_fldcat.

wa_it_fldcat-fieldname = v_fieldname.

wa_it_fldcat-datatype = 'CHAR'.

wa_it_fldcat-outputlen = 5.

wa_it_fldcat-intlen = 5.

APPEND wa_it_fldcat TO it_fldcat .

ENDDO.

• Internal table creation..

CALL METHOD cl_alv_table_create=>create_dynamic_table

EXPORTING it_fieldcatalog = it_fldcat

IMPORTING ep_table = gp_table.

ASSIGN gp_table->* TO <gt_table>.

CHECK sy-subrc = 0.

DATA: WA TYPE REF TO DATA.

• Work area for the dynamic internal table.

CREATE DATA WA LIKE LINE OF <gt_table>.

WRITE: / 'Dynamic internal table created'.

Thanks,

Naren

[ferry_lianto]

Hi,

Please check this Rich's sample code.

report zrich_0003
       no standard page heading.
 
type-pools: slis.
 
field-symbols: <dyn_table> type standard table,
               <dyn_wa>,
               <dyn_field>.
 
data: alv_fldcat type slis_t_fieldcat_alv,
      it_fldcat type lvc_t_fcat.
 
 
selection-screen begin of block b1 with frame title text-001.
parameters: p_check type c.
selection-screen end of block b1.
 
start-of-selection.
 
  perform build_dyn_itab.
  perform build_report.
 
* Write out your dynamic internal table - one field at a time.
  loop at <dyn_table> into <dyn_wa>.
    do.
      assign component  sy-index  of structure <dyn_wa> to <dyn_field>.
      if sy-subrc <> 0.
        exit.
      endif.
      write:/ <dyn_field>.
    enddo.
  endloop.
 
 
************************************************************************
*  Build_dyn_itab
************************************************************************
form build_dyn_itab.
 
  data: index(3) type c.
 
  data: new_table type ref to data,
        new_line  type ref to data,
        wa_it_fldcat type lvc_s_fcat.
 
* Create fields
  clear index.
  do 5 times.
    index = sy-index.
    clear wa_it_fldcat.
    concatenate 'Field' index into
             wa_it_fldcat-fieldname .
    condense  wa_it_fldcat-fieldname no-gaps.
    wa_it_fldcat-datatype = 'CHAR'.
    wa_it_fldcat-intlen = 5.
    append wa_it_fldcat to it_fldcat .
  enddo.
 
* Add a field that is TYPE P
  clear wa_it_fldcat.
  wa_it_fldcat-fieldname = 'FIELDP' .
  wa_it_fldcat-datatype = 'CURR'.
  wa_it_fldcat-intlen = 10.
  append wa_it_fldcat to it_fldcat .
 
* 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>.
 
endform.
 
*********************************************************************
*      Form  build_report
*********************************************************************
form build_report.
 
  data: fieldname(20) type c.
  data: fieldvalue(5) type c.
  data: index(3) type c.
  field-symbols: <fs1>.
 
* Create a record to add to table
  do 5 times.
    index = sy-index.
* Set up fieldname
    concatenate 'FIELD' index into
             fieldname .
    condense   fieldname  no-gaps.
* Set up fieldvalue
    concatenate 'FLD' index into
             fieldvalue.
    condense   fieldvalue no-gaps.
    assign component  fieldname  of structure <dyn_wa> to <fs1>.
    <fs1> =  fieldvalue.
  enddo.
  assign component  'FIELDP'  of structure <dyn_wa> to <fs1>.
  <fs1> =  '1234.75'.
 
* Append to the dynamic internal table
  append <dyn_wa> to <dyn_table>.
 
endform.

Regards,

Ferry Lianto

[Former Member]

Read my weblog -:) It an example of OO ALV with Dynamic Tables -;)

<a href="/people/alvaro.tejadagalindo/blog/2006/11/27/dynamic-alv-list-display ALV List Display</a>

Greetings,

Blag.