How to create editable column at alv grid with search help?

make sure field that you want to display have a search help

at your code, make this definition was fill

this is the subroutine:
FORM f_fieldcats4 USING fu_fname
                        fu_reftb
                        fu_reffname
                        fu_text
                        fu_len
                        fu_sum
                        fu_curr
                        fu_spot
                        fu_out
                        fu_uom
                        fu_edit
                        fu_key
                        fu_cek
                        fu_fix
                        fu_type.

  DATA : lt_fieldcat TYPE slis_fieldcat_alv.
  lt_fieldcat-fieldname      = fu_fname.
  lt_fieldcat-ref_tabname    = fu_reftb.
  lt_fieldcat-ref_fieldname  = fu_reffname.
  lt_fieldcat-seltext_l      = lt_fieldcat-seltext_m =
  lt_fieldcat-seltext_s      = fu_text.
  lt_fieldcat-reptext_ddic   = fu_text.
  lt_fieldcat-outputlen      = fu_len.
  lt_fieldcat-do_sum         = fu_sum.
  lt_fieldcat-cfieldname     = fu_curr.
  lt_fieldcat-hotspot        = fu_spot.
  lt_fieldcat-no_out         = fu_out.
  lt_fieldcat-qfieldname     = fu_uom.
  lt_fieldcat-edit           = fu_edit.
  lt_fieldcat-input          = fu_edit.
  lt_fieldcat-key          = fu_key.
  lt_fieldcat-checkbox          = fu_cek.
  lt_fieldcat-fix_column          = fu_fix.
  lt_fieldcat-datatype          = fu_type.

  APPEND lt_fieldcat TO t_fieldcat.
  CLEAR: lt_fieldcat.
ENDFORM.                    " F_FIELDCATS4

Mariana Novelia Senjaya

Hi. I’m author of ABAP Diary. I’m CEO/Founder of Meet Grapppi. I’m Creative Art Director, Web Designer, Interaction Designer, Industrial Designer, Web Developer, ABAPER, Analyst, Business Enthusiast, StartUp Enthusiast, Lecturer and Writer. Inspired to make things looks better.