Routine from FORM -ENDFORM to METHOD

Former Member — Sat, 09 Dec 2006 07:52:14 GMT

hi friends,

can anyone give the idea of changing FORM-ENDFORM code

to METHOD-ENDMETHOD

if required i will give my code

thanks in advance

raj

Re: Routine from FORM -ENDFORM to METHOD

uwe_schieferstein — Sat, 09 Dec 2006 09:11:52 GMT

Hello Raj

In general, you can transfer most of the coding possible in FORMs to methods. However, itabs with header lines must be replaced by table types, e.g.:

DATA:
  ls_line     TYPE <tablename>,
  lt_itab     TYPE STANDARD TABLE of <tablename>.

Certain statements are not allowed in methods, e.g.

CALL SCREEN

. If your original FORM called a screen then you have to move the CALL SCREEN statement to a function module and call this function module within your method.

If your original FORM contains USING and CHANGING parameters you have to define the corresponding IMPORTING and EXPORTING / CHANGING parameters in the method. Again, "itab" parameters must be defines as table types. If your FORM returned a single parameter then you can define a RETURNING parameter in your method.

Finally, like fields only exists in the context of a table (or structure) methods only exist in the context of a class. Thus, you have to define your class in the class builder (SE24) or, alternatively, define it as local class.

Here is a simple example:

FORM routine USING
                         ud_matnr   TYPE matnr
              CHANGING
                         cs_mara    TYPE mara.
  
  CLEAR: cs_mara.
  SELECT SINGLE * FROM mara INTO cs_mara.

ENDFORM.

METHOD read_single_material
  IMPORTING
    id_matnr   TYPE matnr
  RETURNING
    rs_mara    TYPE mara.

  SELECT SINGLE * FROM mara INTO rs_mara.

ENDMETHOD.

Regards

Uwe

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Routine from FORM -ENDFORM to METHOD

Re: Routine from FORM -ENDFORM to METHOD