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AT USER-COMMAND

Syntax 语法

AT USER-COMMAND.

Effect 作用

This statement defines an event block whose event is triggered by the ABAP runtime environment if, during the display of a screen list, a function with a self-defined function code was chosen.

这个语句定义了一个如果在屏幕列表显示期间选择了具有自定义的功能码的函数就会被ABAP运行环境触发事件块。

Note

Self-defined function codes are all those that include character combinations, except for the following:

自定义的功能码是所有那些包含字符的组合,除了以下部分:

  • The function codes PICK and PF## ("##" stands for 01 to 24) do not cause the event AT USER-COMMAND, but the events AT LINE-SELECTION and AT PF##.

功能码PICKPF##(‘##’代码0124)触发事件AT USER-COMMAND但是能触发AT LINE-SELECTION AT PF##

  • All function codes that start with the character "%" are interpreted as system functions and do not cause the event AT USER-COMMAND. The system functions for lists are listed in the following table 1.

所有的以字符%开始的功能码被看作是系统函数并且不会触发AT USER-COMMAND事件。系统函数列表被表在如下的表1中。

  • The function codes in the following table 2, likewise, do not cause the event AT USER-COMMAND, but are handled by the list processor.

2中的功能码,同样地也不会触发AT USER-COMMAND事件,但是被列表处理器使用。

Table 1 1

Function code

Function

功能码

函数

%CTX

Call a context menu

%CTX

显示右键菜单

%EX

Exit

%EX

退出

%PC

Save to file

%PC

保存文件

%PRI

Print

%PRI

打印

%SC

Search for ...

%SC

查找

%SC+

Find next

%SC+

查找下一个

%SL

Search in office

%SL

在office中查找

%ST

Save to report tree

%ST

保存到报表树

 

 

 

Table 2

Function code

Function

BACK

Back 返回

P-

Scroll to previous page 返回到上一页

P--

Scroll to first page    跳转到第一页

P+

Scroll to next page     跳转到下一页

P++

Scroll to last page     跳转到最后一页

PFILE name

Store list lines in a text file named abap.lst in standard character representation in the standard directory of the application server. If a name is entered using name, this is converted to lowercase letters and used as the file name.

PL-

Scroll to first line of the page 跳转到当前页的第一行

PL-n

Scroll n lines back              返回N行

PL+

Scroll to last line of the page 跳转到当前页的最后一行

PL+n

Scroll n lines up                向上跳转N行

PNOP

No effect                        没有作用

PP-

Scroll back one page             返回一页

PP-n

Scroll n pages back              返回N页

PP+

Scroll one page forward          向前跳转一页

PP+n

Scroll n pages forwad            向前跳转N页

PPn

Scroll to beginning of page n    跳转到第N页的开始

PRI, PRINT

Print                            打印

PS--

Scroll to first column              跳转到第一列

PS++

Scroll to last column               跳转到最后一列

PS-

Scroll one column to the left       向左跳转一列

PS-n

Scroll n columns to the left        向左跳转N列

PS+

Scroll one column to the right      向右跳转一列

PS+n

Scroll n columns to the right       向右跳转N列

PSn

Scroll to column n                  跳转到第N列

PZn

Scroll to line n                    跳转到第N行

RW

Cancel                              取消

 

Example 例子

This program works with a self-defined GUI status MYLIST. The function that is linked there with the function code MY_SELECTION causes the event AT USER-COMMAND during list display and also creates details lists.

这个程序需要一个自定义的GUI状态MYLIST。连接到那的具有功能码MY_SELECTION的函数触发AT USER-COMMAND事件在列表显示期间并且创建列表明细。

REPORT demo_at_user_command.

START-OF-SELECTION.
  SET PF-STATUS 'MYLIST'.
  WRITE 'List line'.

AT USER-COMMAND.
  IF sy-lsind = 20.
    SET PF-STATUS 'MYLIST' EXCLUDING 'MY_SELECTION'.
  ENDIF.
  CASE sy-ucomm.
    WHEN 'MY_SELECTION'.
      WRITE: / 'You worked on list', sy-listi,
             / 'You are on list', sy-lsind.
    ...
  ENDCASE.

posted on 2010-02-01 09:54  凡尘clsoho  阅读(2550)  评论(0编辑  收藏  举报