ABAP CHECKBOX 和LISTBOX使用

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*& Report ZJC20051014_1
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REPORT ZJC20051014_1.
TYPE-POOLS: VRM. "存放combobox内容的type pool
DATA: NAME TYPE VRM_ID, "list box的名称
LIST TYPE VRM_VALUES, "list box的值
VALUE LIKE LINE OF LIST."list box的结构
*定义checkbox，指定command，为了能够响应选择屏幕中值的改变
PARAMETERS: P_CB1 TYPE C AS CHECKBOX DEFAULT 'X' USER-COMMAND CHECK,
P_CB2 TYPE C AS CHECKBOX DEFAULT 'X' USER-COMMAND CHECK.
*定义listbox，必须指定visible length
PARAMETERS: P_LIST1(10) TYPE C AS LISTBOX
VISIBLE LENGTH 15 ,
P_LIST2(20) TYPE C AS LISTBOX
VISIBLE LENGTH 25 .
*开始执行
AT SELECTION-SCREEN OUTPUT .
*选择1而没有选择2
IF P_CB1 = 'X' AND P_CB2 = ''.
*向listbox里面添加值
REFRESH LIST .
VALUE-KEY = '1111111111' . "这个就是变量P_LIST的值
VALUE-TEXT = '1111111111' . "这个是text
APPEND VALUE TO LIST .
VALUE-KEY = '2222222222' .
VALUE-TEXT = '2222222222' .
APPEND VALUE TO LIST .
VALUE-KEY = '3333333333' .
VALUE-TEXT = '3333333333' .
APPEND VALUE TO LIST .
*调用函数显示listbox里面的值
CALL FUNCTION 'VRM_SET_VALUES'
EXPORTING
ID = 'P_LIST1'
VALUES = LIST.
*把第二个listbox的值清空，并且不能输入
CLEAR P_LIST2 .
LOOP AT SCREEN .
IF SCREEN-NAME = 'P_LIST2' .
SCREEN-INPUT = 0 .
MODIFY SCREEN .
ENDIF .
ENDLOOP .
*选择2，没有选择1，同上
ELSEIF P_CB2 = 'X' AND P_CB1 = ''.
REFRESH LIST .
VALUE-KEY = 'AAAAAAAAAAAAAAAAAAAA' .
VALUE-TEXT = 'AAAAAAAAAAAAAAAAAAAA' .
APPEND VALUE TO LIST .
VALUE-KEY = 'BBBBBBBBBBBBBBBBBBBB' .
VALUE-TEXT = 'BBBBBBBBBBBBBBBBBBBB' .
APPEND VALUE TO LIST .
VALUE-KEY = 'CCCCCCCCCCCCCCCCCCCC' .
VALUE-TEXT = 'CCCCCCCCCCCCCCCCCCCC' .
APPEND VALUE TO LIST .
APPEND VALUE TO LIST .
CALL FUNCTION 'VRM_SET_VALUES'
EXPORTING
ID = 'P_LIST2'
VALUES = LIST.
*清空listbox 1的值
CLEAR P_LIST1 .
LOOP AT SCREEN .
IF SCREEN-NAME = 'P_LIST1' .
SCREEN-INPUT = 0 .
MODIFY SCREEN .
ENDIF .
ENDLOOP .
*都没有选择，都清空且不能输入
ELSEIF P_CB1 = '' AND P_CB2 = '' .
CLEAR: P_LIST1,P_LIST2 .
LOOP AT SCREEN .
IF SCREEN-NAME = 'P_LIST1' .
SCREEN-INPUT = 0 .
MODIFY SCREEN .
ENDIF .
ENDLOOP .
LOOP AT SCREEN .
IF SCREEN-NAME = 'P_LIST2' .
SCREEN-INPUT = 0 .
MODIFY SCREEN .
ENDIF .
ENDLOOP .
*都选，执行
ELSEIF P_CB1 = 'X' AND P_CB2 = 'X' .
REFRESH LIST .
VALUE-KEY = '1111111111' .
VALUE-TEXT = '1111111111' .
APPEND VALUE TO LIST .
VALUE-KEY = '2222222222' .
VALUE-TEXT = '2222222222' .
APPEND VALUE TO LIST .
VALUE-KEY = '3333333333' .
VALUE-TEXT = '3333333333' .
APPEND VALUE TO LIST .
CALL FUNCTION 'VRM_SET_VALUES'
EXPORTING
ID = 'P_LIST1'
VALUES = LIST.
REFRESH LIST .
VALUE-KEY = 'AAAAAAAAAAAAAAAAAAAA' .
VALUE-TEXT = 'AAAAAAAAAAAAAAAAAAAA' .
APPEND VALUE TO LIST .
VALUE-KEY = 'BBBBBBBBBBBBBBBBBBBB' .
VALUE-TEXT = 'BBBBBBBBBBBBBBBBBBBB' .
APPEND VALUE TO LIST .
VALUE-KEY = 'CCCCCCCCCCCCCCCCCCCC' .
VALUE-TEXT = 'CCCCCCCCCCCCCCCCCCCC' .
APPEND VALUE TO LIST .
CALL FUNCTION 'VRM_SET_VALUES'
EXPORTING
ID = 'P_LIST2'
VALUES = LIST.
ENDIF .
START-OF-SELECTION .
*输出到第二屏幕看看
WRITE: P_LIST1 ,/ P_LIST2 .