Table Control Related Problem

Question

Hi,
I have created table control displaying fields from ztable and now i have created user defined structure containing the same table as structure and one more field is added as MARK for capturing row. Now the problem is when i select one row on table control and scroll down to select another row and again if i scroll up to select another row , its not showing the previous row selected Please provide me solution
Please follow the code for reference.
On screen 0600.
PROCESS BEFORE OUTPUT.
  MODULE status_0600.
  MODULE fetch_data.
  MODULE vertical_scroll2.
  LOOP AT it_vnd INTO fl_vnd WITH CONTROL tbl_2.
    MODULE display_fetched_data.
  ENDLOOP.
PROCESS AFTER INPUT.
MODULE USER_COMMAND_0600.
  LOOP AT it_vnd.
    FIELD fl_vnd-mark
    MODULE move_records ON INPUT.
  ENDLOOP.
  MODULE create_records.
  MODULE change_delete.
In TOP INCLUDE
TYPES:   BEGIN OF zthird.
        INCLUDE STRUCTURE zfmmvndrcert.
TYPES:    mark TYPE c LENGTH 1.
TYPES:   END OF zthird.
CONTROLS :  tbl_2 TYPE TABLEVIEW USING SCREEN 0600.
DATA :         it_vnd TYPE  TABLE OF zthird,
                   it_evnd TYPE TABLE OF zthird,
                   it_strd TYPE TABLE OF zthird,
                   fl_vnd  TYPE zthird.
PROCESS BEFORE OUT.
MODULE status_0600 OUTPUT.
  DATA l_code TYPE TABLE OF sy-ucomm.
  APPEND 'SAVE' TO l_code.
  SET PF-STATUS 'ZVNDR' EXCLUDING l_code.
  SET TITLEBAR 'ZVND'.
ENDMODULE.                 " STATUS_0600  OUTPUT
MODULE fetch_data OUTPUT.
SOME  DATA FETCHING LOGIC IS THERE BUT NOT INCLUDED
  SORT it_vnd BY lifnr cert_number cert_type DESCENDING.
  LOOP AT it_strd INTO fl_vnd.
    fl_vnd-mark = c_x.
    MODIFY it_vnd FROM fl_vnd TRANSPORTING mark WHERE lifnr       = fl_vnd-lifnr
                                                AND   cert_number = fl_vnd-cert_number
                                                AND   cert_type   = fl_vnd-cert_type.
    CLEAR fl_vnd.
  ENDLOOP.
  DESCRIBE TABLE it_vnd LINES v_ln.
ENDMODULE.                 " fetch_data  OUTPUT
module vertical_scroll2 output.
describe table it_vnd
lines v_lines.
tbl_2-lines = v_lines + 2.
endmodule.                 " vertical_scroll2  OUTPUT
MODULE display_fetched_data OUTPUT.
    MOVE-CORRESPONDING fl_vnd TO zfmmvndrcert.
    CLEAR fl_vnd.
ENDMODULE.                 " display_fetched_data  OUTPUT
PROCESS AFTER INPUT.
MODULE move_records INPUT.
  IF v_fl EQ space.
    REFRESH : it_evnd,it_strd.
    v_fl = c_x.
  ENDIF.
  MOVE-CORRESPONDING zfmmvndrcert TO fl_vnd.
  fl_vnd-mark = c_x.
  MODIFY it_vnd FROM fl_vnd TRANSPORTING mark WHERE lifnr = fl_vnd-lifnr.
  APPEND fl_vnd to it_strd.
  APPEND fl_vnd TO it_evnd.
  CLEAR fl_vnd.
DESCRIBE TABLE it_evnd
lines v_ln.
ENDMODULE.                 " move_records  INPUT
Please provide me solution.
Thanks ...
PARAG
Edited by: Matt on Jan 14, 2009 2:02 PM added  tag

Answer 1

Ok. So you want to select multiple rows.
For this, add one single char field say SEL in your internal table for table control i.e it_vnd.
Then on your screen layout, table control properties add the field into w/SelName field (IT_VND-SEL).
Now when you select records in the table control, the field SEL will have value X.
Check if the above solution works.
regards,
Jinson