Dynamic Array

[Former Member]

Hi,

I want to declare a char array dynamically.

Example:

data: size type i.

size = 30. "size gets populated from another function module

data:
      begin of table1,
         STR(size) type c,
      end of table1.

Can any one please tell me on how to declare the above STR correctly?

Thanks,

Uma

[naimesh_patel]

Use type STRING instead of the C.

Based on the input, string will adjust its length.

DATA: BEGIN OF ITAB OCCURS 0,
      STR TYPE STRING,
      END   OF ITAB.

Regards,

Naimesh Patel

[Former Member]

Hi Naimesh Patel,

Thanks for your reply.

I want char array only, as this char array will input to next function call.

Also, i cannot define a maximum size in char array.

I want to exactly define the variable "size" as char array size.

Thanks,

Uma

[Former Member]

This was raja's reply in one of related threads:

here is the code sample.

codeparameters: size(10) .

data: elem type ref to CL_ABAP_ELEMDESCR .

data: len type i .

data: dref type ref to data .

field-symbols: <field> type any.

start-of-selection .

len = size .

elem = cl_abap_elemdescr=>get_c( len ).

create data dref type handle elem.

assign dref->* to <field>.

clear len .

describe field <field> length len in character mode .

write:/ len .[/code]

Regards

Raja

https://forums.sdn.sap.com/click.jspa?searchID=12438498&messageID=2356304

[Former Member]

Thank you Aparna.

With this I am able to declare a temp string as below. But I dont know how to use this inside itab.

FIELD-SYMBOLS <tempstr> type c.

describe field <tempstr> length fsize in character mode.

Can anyone please help me?

Thanks,

Uma

[Former Member]

I think it's easier with a dynamic table

DATA: i_lvc TYPE lvc_t_fcat WITH HEADER LINE,
      i_table TYPE REF TO data,
      l_style TYPE lvc_fname.
FIELD-SYMBOLS <fs> TYPE table.
PARAMETERS p_lenght TYPE i.

START-OF-SELECTION.
  i_lvc-fieldname = 'Varchar'.
  i_lvc-inttype = 'C'.
  i_lvc-intlen = p_lenght.
  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>.