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SCROLL LIST

Short Reference

Other versions: 7.31 | 7.40 | 7.54

Syntax


SCROLL LIST [horizontal] 
       [vertical]
       [INDEX idx].

Addition

... INDEX idx

Effect

This statement scrolls the display area of a list stored in the list buffer to the position specified in horizontal and/or vertical. At least one of these additions must be specified, in which all horizontal specifications refer to the columns of a displayed list. The corresponding section is displayed when the list is next displayed.

Without using the SCROLL statement, a list is displayed during its initial display starting from the first column of the first row. If the user navigates from a details list back to a lower list level, the list is displayed with the section in which it was last displayed. The SCROLL statement sets a new first column, a new first row, or both. Each SCROLL statement sets only the size specified in it, without changing the other positions.

Addition

... INDEX idx

Effect

The list level can be specified with the addition INDEX, where a data object (which includes 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, 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. If the list level specified in idx is not available, sy-subrc is set to the value 8.

System Fields

sy-subrc Relevance
0 Screen section was successfully scrolled.
4 Complete scrolling not possible because the list margin was reached.
8 Scrolling not possible because the specified list level does not exist.


Note

While scrolling through the list just created (sy-lsind), note that a SCROLL statement has no effect prior to the first output statement, since the list does not yet exist in the list buffer.


Example

By double-clicking the basic list, you can scroll down this list in the AT LINE-SELECTION event block to the page entered in a selection screen. The lines on the page retain their original position with reference to the page header by using sy-staro. However, you do not need to explicitly set the column to sy-staco, since this position is retained during vertical scrolling.

REPORT LINE-COUNT 100 LINE-SIZE 100 
       NO STANDARD PAGE HEADING. 

SELECTION-SCREEN BEGIN OF SCREEN 500 AS WINDOW. 
PARAMETERS page TYPE i. 
SELECTION-SCREEN END OF SCREEN 500. 

START-OF-SELECTION. 
  DO 10000 TIMES. 
    WRITE sy-index. 
  ENDDO. 

TOP-OF-PAGE. 
  ULINE. 
  WRITE sy-pagno. 
  ULINE. 

AT LINE-SELECTION. 
  CALL SELECTION-SCREEN 500 STARTING AT 10 10. 
  SCROLL LIST TO COLUMN sy-staco 
              TO PAGE page LINE sy-staro. 

Continue

SCROLL LIST - Horizontal

SCROLL LIST - vertical