Comments
ABAP READ LINE Statement syntax, information and example SAP source code
READ LINE
Short Reference
ABAP Syntax
[INDEX idx]}
[ result ].
ABAP_ADDITIONS:
1 ... LINE line [{OF PAGE page }|{OF CURRENT PAGE}] [INDEX idx]
2 ... CURRENT LINE
What does it do? This statement assigns the content of a line stored in the list buffer to the system field sy-lisel , and allows other target fields to be specified in result
. In addition, all values for this line stored with
HIDE are assigned to the respective variables.
The line to be read is specified with the addition LINE or with
CURRENT LINE .
System Fields
sy-subrc Meaning
0The specified line exists and was read.
Not 0The specified line does not exist.
ABAP_ADDITION_1
What does it do? For the addition LINE , a data object of the type i is expected for line , which includes the line number based on the list page of a list level.
The list level can be specified with the addition INDEX , where a data object (which contains the list index) of type i is expected for idx . The value of idx must be greater than or equal to 0. If the addition INDEX is not specified, then the list level 0 (the basic list itself) is selected during the creation of the basic list, and the list level at which the event was triggered (
sy-listi ) is selected during the processing of a list event.
The list page can be specified either with PAGE page or with CURRENT PAGE . For page , a data object of the type i
that contains the page number of an existing page of the list level is expected. No line is selected if no line is found for the specified values in line , idx and page . CURRENT PAGE indicates the topmost displayed page of the list, on which the last list event has taken place. No line is selected while creating the basic list. If no addition is specified for the page, then the current page (
sy-pagno ) is selected during the creation of the basic list, and the page on which the event was triggered ( sy-cpage ) is selected during the processing of a list event.
ABAP_ADDITION_2 ... CURRENT LINE
What does it do? For the addition CURRENT LINE , the line on which the screen cursor was positioned during a preceding list event (
sy-lilli ), or the last line read with a preceding READ LINE statement, is selected. No line is selected while creating the basic list.
Example ABAP Coding This example reads all lines of the basic list after selecting a line. The content of the checkbox is assigned to the output data object flag . A target field wa with length 10 is used for the date, since this is the length of the output area and contains separators. If an assignment was made to the output field date , the area length would be reduced. The checked data is displayed in the details list.
DATA: date TYPE d,
flag TYPE c LENGTH 1,
wa TYPE c LENGTH 10.
START-OF-SELECTION.
date = sy-datum.
DO 10 TIMES.
date = date + sy-index.
WRITE: / flag AS CHECKBOX, (10) date.
ENDDO.
AT LINE-SELECTION.
DO.
READ LINE sy-index FIELD VALUE flag
date INTO wa.
IF sy-subrc <(><<)>> 0.
EXIT.
ELSEIF flag = 'X'.
WRITE / wa.
ENDIF.
ENDDO.
Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved
