Selection screen descriptions

Question

Hi all help me in the issue .
                   I am having Selection screen with the field sales order type when the user enter particular sales order type the description of the sales order type should come correspondig to the order type how to acheive the same
Thanks in advance

Answer 1

This should help:
SELECTION-SCREEN BEGIN OF LINE.
PARAMETERS p_vkorg TYPE vkorg.
SELECTION-SCREEN COMMENT 20(40) v_name.
SELECTION-SCREEN END OF LINE.
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_vkorg.
  DATA: it_ret TYPE STANDARD TABLE OF ddshretval,
        wa_ret TYPE ddshretval,
        it_dynnr TYPE STANDARD TABLE OF dynpread,
        wa_dynnr TYPE dynpread.
  CALL FUNCTION 'F4IF_FIELD_VALUE_REQUEST'
    EXPORTING
      tabname           = `TVKO`
      fieldname         = `VKORG`
      dynpprog          = sy-repid
      dynpnr            = sy-dynnr
      dynprofield       = `P_VKORG`
    TABLES
      return_tab        = it_ret
    EXCEPTIONS
      field_not_found   = 1
      no_help_for_field = 2
      inconsistent_help = 3
      no_values_found   = 4
      OTHERS            = 5.
  IF sy-subrc = 0.
    READ TABLE it_ret INTO wa_ret INDEX 1.
    CHECK sy-subrc = 0.
    p_vkorg = wa_ret-fieldval.
    SELECT SINGLE vtext FROM tvkot INTO v_name
      WHERE
      spras = sy-langu AND
      vkorg = p_vkorg.
    wa_dynnr-fieldname = `V_NAME`.
    wa_dynnr-fieldvalue = v_name.
    APPEND wa_dynnr TO it_dynnr.
    CALL FUNCTION 'DYNP_VALUES_UPDATE'
      EXPORTING
        dyname               = sy-repid
        dynumb               = sy-dynnr
      TABLES
        dynpfields           = it_dynnr
      EXCEPTIONS
        invalid_abapworkarea = 1
        invalid_dynprofield  = 2
        invalid_dynproname   = 3
        invalid_dynpronummer = 4
        invalid_request      = 5
        no_fielddescription  = 6
        undefind_error       = 7
        OTHERS               = 8.
    IF sy-subrc NE 0.
*     Can't help
    ENDIF.
  ENDIF.