DYNPRO deletes value after user interaction
Hi, im neu in ABAP Welt and tried to write a calculator but whenever i click a button. it deletes field which i want to also see. Can You experts help me for this? here is my code: MODULE user_command_2000 INPUT. IF sy–ucomm EQ ‘BACK’. LEAVE TO SCREEN 0. ELSEIF sy–ucomm EQ ‘CLEAR’. CLEAR: gv_numinp1 , gv_numinp2 , gv_numoutp1. ELSEIF sy–ucomm EQ ‘EXIT’ OR sy–ucomm EQ ‘CANC’. LEAVE PROGRAM. ELSEIF sy–ucomm EQ ‘CALC’. IF gv_numinp1 IS INITIAL AND gv_numinp2 IS INITIAL. MESSAGE ‘bitte’ TYPE ‘S’ DISPLAY LIKE ‘E’. ENDIF. CREATE OBJECT go_main EXPORTING iv_num1 = gv_numinp1 iv_num2 = gv_numinp2. IF gv_radplus EQ abap_true. “Summe go_main->sum( IMPORTING ev_result = gv_numoutp1 ” RESULT ). ELSEIF gv_radmin EQ abap_true. “Minus go_main->subtraction( IMPORTING ev_result = gv_numoutp1 ” RESULT ). ELSEIF gv_radmultip EQ abap_true. “multiplication go_main->multiplication( IMPORTING ev_result = gv_numoutp1 ” RESULT ). ELSEIF gv_raddiv EQ abap_true. “division go_main->division( IMPORTING ev_result = gv_numoutp1 ” RESULT ). ENDIF. ENDIF. WRITE gv_numoutp1. ENDMODULE. and Photos: before: and after click: BR.