选择屏幕的折叠效果

熟悉SELECTION-SCREEN相关语句做的小练习,随便看看.

 

REPORT ZTEST_002.

TYPE-POOLS ICON.
TABLES MARA.

SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME .
PARAMETERS P_WERKS TYPE WERKS.
SELECTION-SCREEN END OF BLOCK B1.

SELECTION-SCREEN SKIP 1.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN PUSHBUTTON 1(4) BUT1 USER-COMMAND BUTTON1 VISIBLE LENGTH 2.
SELECTION-SCREEN COMMENT 6(20) COM1.
SELECTION-SCREEN END OF LINE.

SELECTION-SCREEN BEGIN OF BLOCK B2 WITH FRAME .
SELECT-OPTIONS:S_MATNR FOR MARA-MATNR MODIF ID BL1,
               S_GROES FOR MARA-GROES MODIF ID BL1.
SELECTION-SCREEN END OF BLOCK B2 .

INITIALIZATION.
  WRITE ICON_DATA_AREA_EXPAND AS ICON TO BUT1 .
  COM1 = 'DATA EXPAND'.

AT SELECTION-SCREEN.
  CASE SY-UCOMM.
    WHEN 'BUTTON1'.
      IF BUT1 = .
        WRITE ICON_DATA_AREA_COLLAPSE AS ICON TO BUT1.
        COM1 = 'DATA COLLAPSE'.
      ELSE.
        WRITE ICON_DATA_AREA_EXPAND AS ICON TO BUT1.
        COM1 = 'DATA EXPAND'.
      ENDIF.
  ENDCASE.

AT SELECTION-SCREEN OUTPUT.
  LOOP AT SCREEN.
    IF BUT1 = AND SCREEN-GROUP1 = 'BL1'.
      SCREEN-ACTIVE = 0.
      MODIFY SCREEN.
    ENDIF.
  ENDLOOP.