SFL (Subfile) keyword for display files

You use this record-level keyword to specify that this record format is to be a subfile record format.

This record format (including its related field descriptions) must immediately precede the subfile-control record format (identified by the SFLCTL keyword).

This keyword has no parameters.

At least one displayable field must be specified in the subfile record format, unless the subfile is a message subfile (SFLMSGRCD keyword). The locations specified for fields in this record format are the locations on the display where the first subfile record in any one page of the subfile is displayed. The remaining part of the page of records is displayed below the first record.

The number of records in a page is determined by the parameter value specified for the SFLPAG keyword.

Displayable fields specified on the subfile-control record format can be displayed at the same time as subfile records. However, fields specified in the subfile-control record format cannot overlap fields specified in the subfile record format, even if they are specified with option indicators.

Overlap errors can occur if the first field of either the subfile record or the subfile control record starts in position 1. A field starting in position 1 has a beginning attribute byte on the previous line. Therefore, the previous line is also part of the record format.

The number of subfiles (each having one SFL and one SFLCTL keyword specified) that can be specified in a display file is limited only by the number of record formats permitted in a display file (1024 record formats, or 512 subfiles, maximum). Twelve subfiles can contain active records or be displayed at one time.

For display size *DS3, the field will wrap to the next line if the field extends beyond column 80.

Option indicators are not valid for this keyword.

Besides SFL, the following keywords are also valid on the subfile record format:

For message subfiles:
SFLMSGRCD (required at the record level)
SFLMSGKEY (required at the field level)
SFLPGMQ
For all other subfiles (at the record level):
CHANGE
CHECK(AB)
CHECK(RL)
CHGINPDFT
INDTXT
KEEP

LOGINP
LOGOUT
SETOF
SETOFF
SFLNXTCHG
TEXT

The following otherwise valid keywords are not valid at the field level when specified for the subfile record format:
DATE
DFTVAL
ERRMSG

ERRMSGID
MSGID
TIME

Example

The following example shows how to specify the SFL keyword.

|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
00010A          R SFLR                      SFL
     A*
00020A*           (at least one displayable field)
     A*
00030A          R SFLCTLR                   SFLCTL(SFLR)
00040A                                      SFLPAG(17)
00050A                                      SFLSIZ(17)
00060A                                      SFLDSP
00070A                                      SFLDSPCTL
     A