How to pass the values from one screen to another

Question

HI,
consider me21n,
po is created with the item category L,so components tab is enabled.that u all know.
i have added the custom tab in the item details with netwt,gross wt,no of pieces and one more field.
those fields are also in component structure of material data.
i need to pass the matnr,maktx,quantity,ntwt,grosswt from the component to be displayed in  the subscreen.
i used import mdpm to xmdpm from memory id 'subcon',  where it is exported from the function module 'me_components-maintain'.
how to pass  all the values from component of structure MDPM to the subscreen of custom tab in the item details.
help me pls........................'

Answer 1

hi everyone,
MODULE status_0111 OUTPUT.
data : fill type i.
SET PF-STATUS 'xxxxxxxx'.
SET TITLEBAR 'xxx'.,
  DESCRIBE TABLE lt_zzmm_po_comp LINES fill.
  ctrl_0111-lines = fill.
ENDMODULE.                 " STATUS_0111  OUTPUT
MODULE fetch_data OUTPUT.
  ctrl_0111-lines = 2.
import xmdpm to lt_xmdpm from memory id 'SUBCON'.
IF not sy-subrc eq 0.
    CLEAR lt_zzmm_po_comp[].
    LOOP AT lt_xmdpm.
      MOVE-CORRESPONDING lt_xmdpm TO lt_zzmm_po_comp.
      APPEND lt_zzmm_po_comp.
    ENDLOOP.
MOVE-CORRESPONDING lt_zzmm_po_comp TO ctrl_0111.
  read table ctrl_0111-cols into col where index = 3.
  ENDIF.
ENDMODULE.                 " FETCH_DATA  OUTPUT
MODULE pass_line OUTPUT.
  READ TABLE lt_zzmm_po_comp INDEX ctrl_0111-current_line.
  MOVE-CORRESPONDING lt_zzmm_po_comp TO ctrl_0111.
ENDMODULE.                 " PASS_LINE  OUTPUT
flow logic
PROCESS BEFORE OUTPUT.
MODULE status_0111.
MODULE FETCH_DATA.
loop at lt_zzmm_po_comp WITH CONTROL ctrl_0111 cursor
ctrl_0111-current_line.
   module pass_line.
endloop.
PROCESS AFTER INPUT.
MODULE USER_COMMAND_0111.
loop.
*module read_data.
endloop.
but i cant see my fields in the table control .....i dont know y it is  not coming?can anyone help me with code...