Event in ALV For Extra Push Button Added

Question

Hello Guys,
I have created an ALV and with the help of u people I have successfull to add new button (push button) in it with following procdure.
a) New PF-STATUS is required , say 'ABCD'.
b) Handle user_commmand
2. First of all, from Function group SALV,
copy the STANDARD gui status to your program,
from SE80, by right clicking.
3. come to your program.
start-of-selection.
SET PF-STATUS 'ABCD'.
4. Double click ABCD and activate the gui status.
4. In gui status,
add/change your own buttons
Save and activate.
after that, you should be passing the name of the pf-status in the alv grid fm..
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
I_CALLBACK_PROGRAM = SAT_REPID
I_CALLBACK_PF_STATUS_SET = 'abcd'
I_CALLBACK_USER_COMMAND = 'USER_COMMAND'
IS_LAYOUT = SAT_LAYOUT
IT_FIELDCAT = SAT_FIELDCATALOG[]
IT_EVENTS = SAT_EVENTS[]
TABLES
T_OUTTAB = ITAB_FINAL
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.
make sure there is a form ABCD in your program...
FORM abcd USING P_EXTAB TYPE SLIS_T_EXTAB.
SET PF-STATUS 'abcd' EXCLUDING P_EXTAB.
ENDFORM. 
Now I have given name of push button as show . My requirement is when users select one row (First I have to identify any row selected or not , if not Error message should be display) and with respect to the selected row I have to show one more ALV contain the billing details of the sales order Row Selected.
My question is ..
1.  Is is possible to add a option button with respect to each sales order to  identify    the which row is selected.
2. How I code to get the event of show push button.
3. At the event I required the Selected Row data, not first column only.
Please do the needful.
Thanks
Swati....

Answer 1

Hello Shiba ,
Really Thanks for Code, Porgram is actviated but after pressing the show button it giving dump.
the message in the dump is <b>Type conflict when calling a FORM.</b>
I have define field catalog like this.
  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
   EXPORTING
   I_CALLBACK_PROGRAM                 =  w_repid
   I_CALLBACK_PF_STATUS_SET           = 'STANDARD'
   I_CALLBACK_USER_COMMAND            = 'USER_COMMAND'
   I_CALLBACK_TOP_OF_PAGE            = 'p_header1'(001)
   I_CALLBACK_HTML_TOP_OF_PAGE       = 'p_header1'(001)
   I_GRID_TITLE                      = 'Outstanding Agewise Customer Report'
   IT_FIELDCAT                       = IT_FIELDCAT
   it_events                         =  it_events
TABLES
      T_OUTTAB                          = t_fit
and form i have define like this
FORM USER_COMMAND using pucom like sy-ucomm extab type slis_extab.
data : selfield type slis_selfield .
  CASE pucom.
  WHEN 'SHOW'.  "(this is the function code of ur button)
  if selfield-fieldname = 'VBELN'.
      Perform Show_data using selfield-value.
  elseif selfield-fieldname  = ' '.
      MESSAGE E015(ZMO) WITH 'Please select One Row'.
  endif.
  ENDCASE.
ENDFORM.
When i have debug the program, I found it will not executing my code , the progrm goes to execute one Stranded code with following name..
form user_command using r_ucomm type sy-ucomm
                        r_refresh
                        r_exit
                        rs_stable type lvc_s_stbl.
  data: ls_selfield type slis_selfield.
On this form my program is giving me dump on following line.
>>>>>   rs_stable-row = ls_selfield-row_stable.
1103   rs_stable-col = ls_selfield-col_stable.
Please tell me what the problem and how to resolve the same.
Regards
Swati...