ENABLE Reference Manual

ENABLE FUNCTION KEYS
Multifile Operations
If an error occurs during an UPDATE BOX operation, the
application:
• Issues a message identifying the problem
• Highlights the fields of the record in error
• Displays a prompt at the top of the screen that asks whether
you want to continue processing
When this prompt appears you must type either the letter Y or
the letter N and press the indicated function key. If you
enter the letter Y to continue processing, the application
continues the UPDATE BOX operation with the next record. If
you enter the letter N to stop processing, then you can
request an UNDO operation and reverse the effects of the
UPDATE BOX operation.
Multifile Operations
Multifile applications display screens that contain boxes. Each
box displays information from one data base file. The screen
itself acts as a box that encloses information from a data base
file.
Figure 8-2 shows a sample screen displayed by a multifile
application. Note that the boxes appear to be nested. Boxes are
of graduated sizes, each box fitting within a larger one. The
outermost box is bounded by the edge of the terminal screen.
Nested boxes can contain other boxes. A box that contains
another box is called a containing box. The box that fits within
the immediately larger box is called a nested box. A box can be
both a containing box and a nested box.
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