F4 help on ALV with FM REUSE_ALV_GRID_DISPLAY

Question

Hi all;
A little question, I am implementing a editable ALV grid in R/3, for some fields the is an F4 input help available, for others not. (In the data dictionary is an F4 input help available for all fields from the Z-table). What can be wrong, or how do I attach the F4 input help in the coding of the ALV. The fields REF_TABLE and REF_FIELD from the fieldcatalog don't work.
Thanks in advance

Answer 1

<b>If you have F4 help at the Dictionary level, then those should definitely reflect in the ALV Grid.</b>
Check the dictionary table first.
Here is an example of F4 help.
Use Function Module F4IF_INT_TABLE_VALUE_REQUEST.
This Function Module returns the values selected in an internal table. Very
handy when programming your very own F4 help for a field.
Example:
data:
begin of t_values occurs 2,
value like kna1-begru,
end of t_values,
t_return like ddshretval occurs 0 with header line.
t_values = 'PAR*'.
append t_values.
t_values = 'UGG'.
append t_values.
call function 'F4IF_INT_TABLE_VALUE_REQUEST'
exporting
retfield = 'BEGRU'
value_org = 'S'
tables
value_tab = t_values
return_tab = t_return
exceptions
parameter_error = 1
no_values_found = 2
others = 3.
if sy-subrc = 0.
read table t_return index 1.
endif.
If you are using REUSE_ALV_GRID_DISPLAY..... make sure of these
In the filedcatalog have you mentioned the reference table and field
wa_fcat-ref_table = 'ZTABLE'.
wa_fcat-ref_field = 'FIELD'.
Regards,
Pavan