Module pool programming " to add selection-option on screen"

Question

I want to add selection option for a field ( matnr ) on the screen in module pool programmiing. ( how it comes in report programming). If you you know how to add Please help me to solve.....

Answer 1

Sure, you need to define your selection screen as a subscreen, then embed this into your subscreen area on the dynpro.  Here is a sample program.
report zrich_0006 .
tables: mara.
* Custom Selection Screen 1010
selection-screen begin of screen 1010 as subscreen.
selection-screen begin of block b1 with frame title text-001.
parameters: p_rad1 radiobutton group grp1 default 'X',
            p_rad2 radiobutton group grp1,
            p_rad3 radiobutton group grp1.
select-options: s_matnr for  mara-matnr,
                s_matkl for  mara-matkl,
                s_mtart for  mara-mtart.
selection-screen end of block b1.
selection-screen end of screen 1010.
start-of-selection.
  call screen 100.
*&      Module  STATUS_0100  OUTPUT
module status_0100 output.
*  SET PF-STATUS 'xxxxxxxx'.
*  SET TITLEBAR 'xxx'.
endmodule.
*&      Module  USER_COMMAND_0100  INPUT
module user_command_0100 input.
endmodule.
* Create Screen 100 with a subscreen area called "subscreen_1010"
* Screen Flow Logic follows
*process before output.
*  module status_0100.
*  call subscreen subscreen_1010 including sy-repid '1010'.
*process after input.
*  call subscreen subscreen_1010 .
*  module user_command_0100.
Regards,
Rich Heilman