Setting multiple parameters in "ON VALUE-REQUEST FOR"

Question

Hello experts,
I have a dynpro with two parameters on it, called PA_LABKY and PA_LABTX. The first field PA_LABKY is extended by a value help (see the code below). Normally when a user chooses a value from f4 help the field is filled with the value. That works correct. Now not the first but both fields PA_LABKY and PA_LABTX should be filled when the user chooses a value from f4 help.
I tried it with following code:
AT SELECTION-SCREEN ON VALUE-REQUEST FOR pa_labky.
get the values from database
  SELECT * FROM zrec_001t INTO TABLE lt_rec001t.
set the first output field
  CLEAR ls_dynfieldmap.
  ls_dynfieldmap-fldname = 'LABKY'.
  ls_dynfieldmap-dyfldname = 'PA_LABKY'.
  APPEND ls_dynfieldmap TO lt_dynfieldmap.
set the second output field
  CLEAR ls_dynfieldmap.
  ls_dynfieldmap-fldname = 'LABTX'.
  ls_dynfieldmap-dyfldname = 'PA_LABTX'.
  APPEND ls_dynfieldmap TO lt_dynfieldmap.
display the f4 help
  CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
    EXPORTING
      ddic_structure  = 'ZREC_001T'
      retfield        = 'LABKY'
      value_org       = 'S'
    TABLES
      value_tab       = lt_rec001t
      return_tab      = lt_returntab
      dynpfld_mapping = lt_dynfieldmap
    EXCEPTIONS
      parameter_error = 1
      no_values_found = 2
      OTHERS          = 3.
the first row contains the value for PA_LABKY
  READ TABLE lt_returntab INDEX 1 INTO ls_returntab.
set the value on the dynpro
  pa_labky = ls_returntab-fieldval.
the second row contains the value for PA_LABTX
  READ TABLE lt_returntab INDEX 2 INTO ls_returntab.
set the value on the dynpro 
move ls_returntab-fieldval to pa_labtx. "  <--- NOW THAT DOESN'T WORK
It's the last row that doesn't work, it nothing happens with this field. How can I fill that field?
Thanks in advance.
Daniel

Answer 1

In order to set the second field you must use the function module DYNP_VALUES_UPDATE.  Replace that last statement with a call to this function module,  you must pass the parameter name and the value.
Regards,
RIch Heilman
Correct function module name
Message was edited by:
        Rich Heilman