Use this record-level keyword with an option indicator on the subfile control record format to enable your program to delete the subfile. When the maximum number of subfiles in a display file are already active (24) and another subfile is to be made active, your program must delete one of the active subfiles before making another active.
This keyword has no parameters.
To make a subfile active, your program sends an output operation to the subfile record format or sends an output operation to the subfile control record format with the SFLINZ keyword in effect. To delete a subfile, your program sends an output operation to the subfile control record format with SFLDLT in effect. (Closing the display file deletes all the active subfiles.)
If your program sends an output operation with SFLDLT in effect to a subfile that is not active, the SFLDLT keyword is ignored.
Option indicators are required for this keyword; display size condition names are not valid.
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