1. Screen Elements for Input/Output
Checkboxes and Radio Button Groups
Error Checking in Input/Output fields

2. 1. Checkboxes and Radio Button Groups

3. Checkboxes and Radio Buttons: Attributes

4. Creating a Checkbox

5. Creating a Radio Button Group
也可用滑鼠框起來，
按右鍵，將其定義為group
宣告按鈕，並讓display為預設選項

6. Program Flow for Radio Buttons and Checkboxes
被勾選

7. 練習實例1

8. 主程式 DATA: CHECK1, CHECK2, RADIO1, RADIO2. CHECK1 = 'X'. RADIO2 = 'X'.
DATA: RESULT1(20) TYPE C, RESULT2(20) TYPE C.
DATA OK_CODE TYPE SY-UCOMM.
CALL SCREEN 9000.

9. Screen 9000的Layout: Checkbox
Result1

10. Screen 9000的Layout: Radio Button
Result2

11. Screen 9000的flow logic PROCESS BEFORE OUTPUT. * MODULE STATUS_9000. *
PROCESS AFTER INPUT.
MODULE USER_COMMAND_9000.

12. MODULE USER_COMMAND_9000 MODULE USER_COMMAND_9000 INPUT. CASE OK_CODE.
WHEN 'END'.
LEAVE PROGRAM.
WHEN 'SHOW'.
RESULT1 = ''.
IF NOT CHECK1 IS INITIAL.
RESULT1 = 'ABAP; '.
ENDIF.
IF CHECK2 = 'X'.
CONCATENATE RESULT1 'FI; ' INTO RESULT1.
IF RADIO1 = 'X'.
RESULT2 = 'You are Male...'.
ELSE.
RESULT2 = 'You are Female...'.
ENDCASE.
ENDMODULE " USER_COMMAND_9000 INPUT

13. 2. Error Checking in Input/Output fields
範例程式：SAPBC410INPD_C_CHECK_INPUT

14. AA

15. 用SE11查詢SFLIGHT Table

16. Automatic Field Input Checks
強制 (例如必填欄位之檢查)

17. Field Input Checks with Error Dialog

18. Dialog Message Categories

19. Message Types

20. 練習實例2-A

21. 主程式 DATA: A TYPE I, B TYPE I, C TYPE I. DATA OK_CODE TYPE SY-UCOMM.
CALL SCREEN 9000.

22. Screen 9000 PAI PROCESS AFTER INPUT. MODULE USER_COMMAND_9000.
FIELD A MODULE CHECK_A.

23. MODULE USER_COMMAND_9000 INPUT.
CASE OK_CODE.
WHEN 'END'.
LEAVE PROGRAM.
ENDCASE.
ENDMODULE.
MODULE CHECK_A INPUT.
IF A < 0 OR A > 50.
MESSAGE 'Please input A Between 0~50' TYPE 'W' .
ENDIF.

24. Checking Groups of Fields

25. Controlling Error Dialogs

26. 練習實例2-B

27. Screen 9000 PAI PROCESS AFTER INPUT. MODULE USER_COMMAND_9000.
FIELD A MODULE CHECK_A.
CHAIN.
FIELD: A, B, C.
MODULE CHECK_ABC ON CHAIN-INPUT.
ENDCHAIN.

28. MODULE CHECK_ABC INPUT.
DATA SUM TYPE I.
SUM = A + B + C.
IF SUM <> 50.
MESSAGE 'A + B + C is not equal 50' TYPE 'W' .
ELSE.
MESSAGE 'A + B + C is equal 50' TYPE 'S' .
ENDIF.
ENDMODULE.

29. Conditional Module Calls

30. Execution when value is not initial

31. Execution on Change

32. Avoiding Field Input Checks

33. Navigation: Dialogs