Doubt in alv layout variant.

Question

hi experts,
I have a requirement that my selection screen should have 'ALV LAYOUT' as one of my parameter. I am using PNPCE LDB , now my issue is I can get the layout option when f4 is press on the alv layout parameter but the respective layout is not displaying in my output.
ex: I have  layout A and  B .
A have only pernr and name
b have only pernr and address
my normal alv layout is  pernr name and address. if i choose A in my ALV LAYOUT parameter also its displaying in default layout alv same is happening for while am choosing B. I  not getting the alv output for respective layout I chosen.
{code}
FORM GET_VARIANT .
DATA: lw_variant TYPE disvariant,
   l_exit     TYPE char1.
   lw_variant-report = sy-repid.
   CALL FUNCTION 'REUSE_ALV_VARIANT_F4'
     EXPORTING
       is_variant = lw_variant
       i_save     = 'A'
     IMPORTING
       e_exit     = l_exit
       es_variant = lw_variant
     EXCEPTIONS
       not_found  = 2.
   IF sy-subrc = 2.
     MESSAGE ID sy-msgid TYPE 'S' NUMBER sy-msgno
     WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
   ELSE.
     IF l_exit EQ space.
       p_layout = lw_variant-variant.
       IF NOT p_layout IS INITIAL.
         PERFORM get_w_variant.
       ENDIF.
     ENDIF.
   ENDIF.
ENDFORM.                    " GET_VARIANT
*&      Form  GET_W_VARIANT
*       text
*  -->  p1        text
*  <--  p2        text
FORM GET_W_VARIANT .
   DATA: lw_variant TYPE disvariant.
   lw_variant-report      = sy-repid.
   lw_variant-handle      = space.
   lw_variant-log_group   = space.
   lw_variant-username    = space.
   lw_variant-variant     = p_layout.
   lw_variant-text        = space.
   lw_variant-dependvars  = space.
ENDFORM.                    " GET_W_VARIANT
*&      Form  ALV_DISPLAY
*       text
*  -->  p1        text
*  <--  p2        text
FORM ALV_DISPLAY .
*  DATA: l_table      TYPE REF TO cl_salv_table.
*  TRY.
*  CALL METHOD CL_SALV_TABLE=>FACTORY
**    EXPORTING
**      LIST_DISPLAY   = IF_SALV_C_BOOL_SAP=>FALSE
**      R_CONTAINER    =
**      CONTAINER_NAME =
*    IMPORTING
*      R_SALV_TABLE   =  L_TABLE
*    CHANGING
*      T_TABLE        = GT_ALV
*   CATCH CX_SALV_MSG .
*  ENDTRY.
*   l_table->display( ).
   DATA: lw_variant TYPE disvariant.
DATA:I_FIELD TYPE SLIS_T_FIELDCAT_ALV,
      iWA  TYPE SLIS_FIELDCAT_ALV.
   IWA-FIELDNAME = 'PERNR'.
   IWA-SELTEXT_L = 'EMPLOYEE ID'.
   APPEND IWA TO i_FIELD.
   IWA-FIELDNAME = 'NAME'.
   IWA-SELTEXT_L = 'NAME'.
   APPEND IWA TO I_FIELD.
   IWA-FIELDNAME = 'DEPT'.
   IWA-SELTEXT_L = 'DEPT'.
   APPEND IWA TO I_FIELD.
   IWA-FIELDNAME = 'UNION'.
   IWA-SELTEXT_L = 'UNION'.
   APPEND IWA TO I_FIELD.
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
   EXPORTING
     i_callback_program      = 'ZTESTPRGFOR20' "Program name
     i_callback_user_command = 'USER_COMMAND'
     it_fieldcat             = i_field
*    it_sort                 = i_sort
     i_save                  = 'X'
     is_variant              = Lw_variant
   TABLES
     t_outtab                 = GT_ALV                       
   EXCEPTIONS
     program_error           = 1
     OTHERS                  = 2.
*IF sy-subrc  0.
*  MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
*  WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
*ENDIF.
ENDFORM.                    " ALV_DISPLAY
{code}

Answer 1

hi Mohammed Quddus,
thanks for your reply . but if you look at my code the concept are same as same as that link code.
am getting all the things right.
i Can able to change the layout by the button on alv and
able to save that new layout
the saved layout are displaying in the my parameter if I press f4. the problem is if I choose the saved layout that layout is not coming in my alv output always its showing default layout.
if anything you find wrong in my code please let me know.