*&---------------------------------------------------------------------*
*& Report Z99_49
*&---------------------------------------------------------------------*
*&
*&---------------------------------------------------------------------*
REPORT Z99_49.

DATA: LT_FIELDCAT TYPE LVC_T_FCAT.

PARAMETERS: P_DYN100 RADIOBUTTON GROUP RA1 DEFAULT 'X',
            P_DYN200 RADIOBUTTON GROUP RA1.

START-OF-SELECTION.

  SY-DYNNR = COND #( WHEN P_DYN100 EQ 'X' THEN '0100'
                     WHEN P_DYN200 EQ 'X' THEN '0200' ).


  CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
    EXPORTING
      I_STRUCTURE_NAME = SWITCH TABNAME( SY-DYNNR
                                         WHEN '0100' THEN 'SCARR'
                                         WHEN '0200' THEN 'SPFLI' )
    CHANGING
      CT_FIELDCAT      = LT_FIELDCAT.

  CL_DEMO_OUTPUT=>DISPLAY( LT_FIELDCAT ).