When double clicking on alv ,want to get the column name

Hello there,
I'm displaying the value of internal table in an alv using Reuse_alv_grid_display method ,using fieldcatalog.I want to know the column name when double clicking on a particular line .If the the fieldname is 'MATNR' then i want to check that column name.
If anybody have any idea plz terply me.
Thanking you neon

for that you have to use the USER_COMMAND event.
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
   I_CALLBACK_PROGRAM                = sy-repid
   I_CALLBACK_USER_COMMAND      = 'USER_COMMAND'
   IT_FIELDCAT                       = it_fcat
TABLES
    t_outtab                          = itab
EXCEPTIONS
   PROGRAM_ERROR                     = 1
   OTHERS                            = 2
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
FORM USER_COMMAND using ucomm type sy-ucomm
                                               selfield type slis_selfield.
data: fieldname(30).
case ucomm.
when '&IC1'.
case selfield-fieldname.
   when 'MATNR'.
    message 'clicked on Matnr' type 'I'.
   when 'POSNR'.
   endcase.
endcase.
ENDFORM.

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Regards
Patrick
My Blog: http://www.inside-oracle-apex.com
APEX Plug-Ins: http://apex.oracle.com/plugins
Twitter: http://www.twitter.com/patrickwolf

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