前面几篇文章已经学习了ABAP中SELECTION-SCREEN的大部分对象,既然是大部分对象,那么还遗留有小部分对象还未接触,接下来我们将继续学习。
(1)SELECTION-SCREEN COMMONT fmt name.
用于定义或者修改本地元素的注释,包括PARAMETER、CHECKBOX BUTTON等。通过SELECTION-SCREEN COMMENT语法可以按Text Symbols设置的值对其属性重新定义。 [For Example] SELECTION-SCREEN BEGIN OF LINE. SELECTION-SCREEN COMMENT (12) TEXT-W03 FOR FIELD parm. SELECTION-SCREEN POSITION 14. PARAMETERS parm LIKE MARA-MATNR. SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN SKIP 1. SELECTION-SCREEN BEGIN OF LINE. PARAMETERS:type AS CHECKBOX. SELECTION-SCREEN COMMENT (40) TEXT-W04 FOR FIELD type. SELECTION-SCREEN END OF LINE.
Text-Symbols设置如下:
程序运行界面如下:
(2)SELECTION-SCREEN FUNCTION KEY n.
该对象用于在工具栏上新增一个功能按钮。该按钮的定义保存在系统结构体SSCRFIELDS中,n为一个整数序数最大至5。不要试图让它小于1或者大于5,它不接受这个范围。也就是说工具栏按钮最多可以放5个(whereby a value between 1 and 5 must be entered for n)。当n等于1时,其按钮描述保存在字段SSCRFIELDS-FUNCTXT_01中,其按钮对象命名为
"FC01",保存在字段SSCRFIELDS-UCOMM中,以下为示例代码: [For Example]
PARAMETERS para LIKE MARA-MATNR.
TABLES: SSCRFIELDS.
SELECTION-SCREEN FUNCTION KEY 1.
SELECTION-SCREEN FUNCTION KEY 2.
SELECTION-SCREEN FUNCTION KEY 5.
MOVE 'Add BUTTON' TO SSCRFIELDS-FUNCTXT_01.
MOVE 'Minus BUTTON' TO SSCRFIELDS-FUNCTXT_02.
MOVE 'MODIFY BUTTON' TO SSCRFIELDS-FUNCTXT_05.
AT SELECTION-SCREEN.
IF SSCRFIELDS-UCOMM = 'FC05'. "触发 FC05工具栏按钮,将要执行什么操作
CALL SELECTION-SCREEN 1234."调用程序中的子屏幕
ENDIF.
运行界面如下:
以下代码来自官方网站上面的例子:
*官方菜单SELECTION-SCREEN FUNCTION KEY n (demo:http://help.sap.com/abapdocu_70/en/ABAPSELECTION-SCREEN_FUNCTIONKEY.htm)
TYPE-POOLS ICON. "Program Icon Library
TABLES SSCRFIELDS.
DATA functxt TYPE SMP_DYNTXT. "SMP_DYNTXT(菜单制作器:动态文本的程序接口)
PARAMETERS: p_carrid TYPE s_carr_id,
p_cityfr TYPE s_from_cit.
SELECTION-SCREEN: FUNCTION KEY 1,
FUNCTION KEY 2.
AT SELECTION-SCREEN.
CASE SSCRFIELDS-UCOMM.
WHEN 'FC01'.
p_carrid = 'LH'.
p_cityfr = 'Frankfurt'.
WHEN 'FC02'.
p_carrid = 'UA'.
p_cityfr = 'Chicago'.
ENDCASE.
运行界面如下:
(3)SELECTION-SCREEN BEGIN OF TABBED BLOCK <block> FOR n LINES.
定义选项卡或者其他类似于选择页切换的功能组件。具体语法如下:
[Syntax] SELECTION-SCREEN: BEGIN OF TABBED BLOCK <sub_area> FOR n LINES, [......] ENDOF BLOCK <sub_area>.
其中 n代表高度,此高度为选择控件的高度。
例1:
[Code]
TABLES:MARA.
*定义子屏幕100 SUBSCREEN
SELECTION-SCREEN BEGIN OF SCREEN 100 AS SUBSCREEN.
SELECTION-SCREEN BEGIN OF BLOCK blockA WITH FRAME TITLE TEXT-W01.
SELECT-OPTIONS:mantra FOR MARA-MATNR NO INTERVALS.
SELECTION-SCREEN SKIP 1.
PARAMETERS: check01 AS CHECKBOX DEFAULT 'X'.
SELECTION-SCREEN END OF BLOCK blockA.
SELECTION-SCREEN END OF SCREEN 100.
*定义子屏幕200 SUBSCREEN
SELECTION-SCREEN BEGIN OF SCREEN 200 AS SUBSCREEN.
PARAMETERS: mantrb LIKE MARA-MATNR.
SELECTION-SCREEN END OF SCREEN 200.
*选择页TAB功能,定义两个TAB
SELECTION-SCREEN:
BEGIN OF TABBED BLOCK MyTab FOR 5 LINES,
TAB (20) BUTTON1 USER-COMMAND PUSH1, *(20)代表要显示在TAB内容的长度,最大长度为79,不相信?你可以试下.哈哈
TAB (20) BUTTON2 USER-COMMAND PUSH2,
END OF BLOCK MyTab.
AT SELECTION-SCREEN.
CASE SY-UCOMM.
WHEN 'PUSH1'.
MyTab-DYNNR = 100.
MyTab-ACTIVETAB = 'BUTTON1'.
WHEN 'PUSH2'.
MyTab-DYNNR = 200.
MyTab-ACTIVETAB = 'BUTTON2'.
ENDCASE.
运行界面如下:
例2:
[CODE] The Official Demo
TABLES SSCRFIELDS.
* SUBSCREEN 100
SELECTION-SCREEN BEGIN OF SCREEN 100 AS SUBSCREEN.
SELECTION-SCREEN BEGIN OF BLOCK b1 WITH FRAME TITLE text-010.
PARAMETERS: p1(10) TYPE c,
p2(10) TYPE c,
p3(10) TYPE c.
SELECTION-SCREEN END OF BLOCK b1.
SELECTION-SCREEN END OF SCREEN 100.
* SUBSCREEN 200
SELECTION-SCREEN BEGIN OF SCREEN 200 AS SUBSCREEN.
SELECTION-SCREEN BEGIN OF BLOCK b2 WITH FRAME TITLE text-020.
PARAMETERS: q1(10) TYPE c,
q2(10) TYPE c,
q3(10) TYPE c.
SELECTION-SCREEN END OF BLOCK b2.
SELECTION-SCREEN END OF SCREEN 200.
* SUBSCREEN 300
SELECTION-SCREEN BEGIN OF SCREEN 300 AS SUBSCREEN.
SELECTION-SCREEN BEGIN OF BLOCK b3 WITH FRAME TITLE text-030.
PARAMETERS: r1(10) TYPE c,
r2(10) TYPE c,
r3(10) TYPE c.
SELECTION-SCREEN END OF BLOCK b3.
SELECTION-SCREEN END OF SCREEN 300.
* STANDARD SELECTION SCREEN
SELECTION-SCREEN: FUNCTION KEY 1, "工具栏按钮
FUNCTION KEY 2.
SELECTION-SCREEN: BEGIN OF TABBED BLOCK sub FOR 10 LINES,
END OF BLOCK sub.