Greying out MEPO1211-NETPR in purchase order?

Question

Hi
I need to grey out out MEPO1211-NETPR in purchase order when the status is released 'S'?
I have used BADI  - ME_ACTV_CANCEL_PO - method check activity
field-symbols:<fs> type any table,
              <ls> type any,
              <lr_screen> type screen.
assign ('(SAPLMEGUI)TC_1211-COLS') to <fs>.
if sy-subrc is initial.
  loop at <fs> assigning <ls>.
    clear lv_inx.
     assign component 'SCREEN' of structure <ls> to <lr_screen>.
if <lr_screen>-name = 'MEPO1211-NETPR'.
        <lr_screen>-input = 0.
     endif.
endif.
endif.
BUT still the field is input enabled in the screen
Kindly suggest how to acheive desired.

Answer 1

Hi Arun -
Check the previous post - http://scn.sap.com/thread/3474357
check the function module - MEPOBADI_FS_ITEM is getting triggered or not. 
If yes, you can put an implicit enhancement at the end of this function module.
Create a implit enahcnement at the end of this function module MEPOBADI_FS_ITEM (just before    ENDFUNCTION). Let me know if you need help on implicit enhancemnt.
1. declare data
    DATA: ,    w_header TYPE mepoheader,
                    w_item   TYPE mepoitem ,
                       w_fieldselection  TYPE mmpur_fs.
   CONSTANTS: c_61       TYPE mmpur_metafield  VALUE '61', 
2 .   check header data
   IF im_header IS NOT INITIAL.
      CALL METHOD im_header->get_data
        RECEIVING
          re_data = w_header.
    ENDIF.
Here you can take the document type from w_header
3. . check if im_item is not inintial. then take the item data
     CALL METHOD im_item->get_data
        RECEIVING
          re_data = w_item.
Here you can check plant from w_item.
if your condition match.
4.    LOOP AT ch_fieldselection INTO  w_fieldselection
                                        WHERE metafield = c_61.
                    w_fieldselection-fieldstatus = '*' .
                MODIFY ch_fieldselection FROM  w_fieldselection.
                CLEAR w_fieldselection.
              ENDLOOP.