Module Pool Programming : Screen Fields.

[Former Member]

Hello

i have 2 fields in a screen. Field1 and Field2

i enter the field1 and want to set the f4 help for second field field2 on the basis of the input in field1.

but when i enter field1 and press f4 help for field2, it doesnot work because the field1 values are not passed when i use process on value request for field2 .

please help .... what am i missing.

Thanks

[Former Member]

Hi ,

you have to use "DYNP_VALUES_READ" function mdule to read the field1 value to process in "F4IF_INT_TABLE_VALUE_REQUEST" function module.

check the code below

declare one internal table like this.

data dynpro_values type table of dynpread.

add the fields which you want to read.

field_value-fieldname = Z_POLCY-BUKRS'.

append field_value to dynpro_values.

field_value-fieldname = 'Z_POLCY-WERKS'.

append field_value to dynpro_values.

call function 'DYNP_VALUES_READ'

exporting

dyname = progname

dynumb = dynnum

translate_to_upper = 'X'

• REQUEST = ' '

• PERFORM_CONVERSION_EXITS = ' '

• PERFORM_INPUT_CONVERSION = ' '

• DETERMINE_LOOP_INDEX = ' '

tables

dynpfields = dynpro_values

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

.

if sy-subrc <> 0.

message id sy-msgid type sy-msgty number sy-msgno

with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.

else.

call function 'F4IF_INT_TABLE_VALUE_REQUEST'

exporting

• DDIC_STRUCTURE = ' '

retfield = 'POLTYPE'

• PVALKEY = ' '

dynpprog = progname

dynpnr = dynnum

dynprofield = 'z_POLCY-POLTYPE'

• STEPL = 0

• WINDOW_TITLE =

• VALUE = ' '

value_org = 'S'

• MULTIPLE_CHOICE = ' '

• DISPLAY = ' '

• CALLBACK_PROGRAM = ' '

• CALLBACK_FORM = ' '

tables

value_tab = it_poltype

• FIELD_TAB =

• RETURN_TAB =

• DYNPFLD_MAPPING = it_ret

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.

endif.

regards

shibu

*check the code for syntax i just given one prototype

[Former Member]

shibuettickal,

thanks dude,

it solved my probelm ... i rewarded you full points.

Thanks,

Hem

[Former Member]

hi,

u need to press enter after entering data in field1 then only it will have data in field1.

reward if usefull...

[Former Member]

Dhwani shah,

thanks for helping me ... ánd for your efforts.

thanks

hem