Doubt in interactive report

Question

hi
I have query in secondary list, when I click any field in basic list ,secondary list was displayed ,But I want to display the secondary list when I click one particular field (like matnr) in basic list..
here is the report
tables  :  vapma ,        " Order Item By Material
           vbap.          " Sales Doc Item
Data :  Begin of t_final occurs 0,
        matnr like vapma-matnr,
        vkorg like vapma-vkorg,
        vtweg like vapma-vtweg,
        spart like vapma-spart,
        kunnr like vapma-kunnr,
        vbeln like vapma-vbeln,
        end of t_final.
Data :  Begin of t_vbap occurs 0,
        matnr like vbap-matnr,
        netwr like vbap-netwr,
        end of t_vbap.
select-options  :  s_vbeln for vapma-vbeln.
start-of-selection.
  select matnr vkorg vtweg spart kunnr vbeln from vapma
                               into table t_final
                               where vbeln in s_Vbeln.
  loop at t_final.
    write : /1  sy-vline, 2  t_final-matnr hotspot,
             15 sy-vline, 16 t_final-vkorg,
             26 sy-vline, 27 t_final-vtweg,
             37 sy-vline, 38 t_final-spart,
             48 sy-vline, 49 t_final-kunnr,
             59 sy-vline, 60 t_final-vbeln,
             69 sy-vline.
    hide : t_final-matnr .
  endloop.
  uline 1(69).
At Line-Selection.
check t_final-matnr is not initial.
  case sy-lsind.
    when '1'.
**** FOR SINGLE RECORD DISPLAY**********************
     select single matnr netwr from vbap
                         into  t_vbap
                         where matnr = t_final-matnr.
******FOR MULTIPLE RECORD DISPLAY*******************
      SELECT MATNR NETWR FROM VBAP
                        INTO TABLE T_VBAP
                        WHERE MATNR = T_FINAL-MATNR.
             append t_vbap.
             clear t_vbap.
    endcase.
    loop at t_vbap.
      write  : / t_vbap-matnr,
                 t_Vbap-netwr.
    endloop.
    clear t_final-matnr.

Answer 1

hi
I did it as u said but it was not going to secondary list..
This is the code after At Line Selection.
At Line-Selection.
check t_final-matnr is not initial.
GET cursor field cursorfield.
if cursorfield eq 't_final-matnr'.
  case sy-lsind.
    when '1'.
**** FOR SINGLE RECORD DISPLAY**********************
     select single matnr netwr from vbap
                         into  t_vbap
                         where matnr = t_final-matnr.
******FOR MULTIPLE RECORD DISPLAY*******************
      SELECT MATNR NETWR FROM VBAP
                        INTO TABLE T_VBAP
                        WHERE MATNR = T_FINAL-MATNR.
             append t_vbap.
             clear t_vbap.
    loop at t_vbap.
      write  : / t_vbap-matnr,
                 t_Vbap-netwr.
    endloop.
    clear t_final-matnr.
endcase.
endif.