Parameters

[Former Member]

While we using at selection screen value request for a parameter means when goinf in to the program you cant see the value for the parameter also when u give in the parameter...

How can we retain the parameter value we are giving in the parameter while we pressing F4..

[Former Member]

Use FM 'DYNP_VALUES_READ' to read the screen values.

Regards,

Pankaj

[varma_narayana]

Hii Mahesh...

This code will help u.

REPORT zsel_f4help .

*---Report with selection screen and to display the list of

• possible entries for field 'B' as per the value in field 'A'.

PARAMETERS: p_vbeln TYPE vbak-vbeln,

p_posnr TYPE vbap-posnr.

AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_posnr.

DATA: BEGIN OF help_item OCCURS 0,

posnr TYPE vbap-posnr,

matnr TYPE vbap-matnr,

arktx TYPE vbap-arktx,

END OF help_item.

DATA: dynfields TYPE TABLE OF dynpread WITH HEADER LINE.

dynfields-fieldname = 'P_VBELN'.

APPEND dynfields.

**Read the Values of the SCREEN FIELDs

CALL FUNCTION 'DYNP_VALUES_READ'

EXPORTING

dyname = sy-cprog

dynumb = sy-dynnr

translate_to_upper = 'X'

TABLES

dynpfields = dynfields

EXCEPTIONS

invalid_abapworkarea = 1

invalid_dynprofield = 2

invalid_dynproname = 3

invalid_dynpronummer = 4

invalid_request = 5

no_fielddescription = 6

invalid_parameter = 7

undefind_error = 8

double_conversion = 9

stepl_not_found = 10

OTHERS = 11.

**Find out the Value of P_VBELN

READ TABLE dynfields WITH KEY fieldname = 'P_VBELN'.

p_vbeln = dynfields-fieldvalue.

**Convert the Value into internal format

CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'

EXPORTING

input = p_vbeln

IMPORTING

output = p_vbeln.

**Fetch the correponding itemnos from VBAP

SELECT posnr matnr arktx INTO TABLE help_item

FROM vbap

WHERE vbeln = p_vbeln.

data : RET_TAB type table of DDSHRETVAL with header line.

CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'

EXPORTING

• DDIC_STRUCTURE = ' '

retfield = 'POSNR'

• PVALKEY = ' '

dynprofield = 'P_POSNR'

dynpprog = sy-cprog

dynpnr = sy-dynnr

• STEPL = 0

• WINDOW_TITLE =

• VALUE = ' '

value_org = 'S'

• MULTIPLE_CHOICE = ' '

• DISPLAY = ' '

• CALLBACK_PROGRAM = ' '

• CALLBACK_FORM = ' '

• MARK_TAB =

• IMPORTING

• USER_RESET =

tables

value_tab = help_item

• FIELD_TAB =

RETURN_TAB = ret_tab

• DYNPFLD_MAPPING =

• EXCEPTIONS

• PARAMETER_ERROR = 1

• NO_VALUES_FOUND = 2

• OTHERS = 3

.

IF sy-subrc <> 0.

• MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

• WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

<<Check the values in RET_TAB after this FM call>>

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