Using Procedure Synthesis › Select Stereotype Options › Refresh the Screen on Cancel

Refresh the Screen on Cancel

You can determine that when the user requests the CANCEL command, the generated system refreshes the screen from the database. The data that refreshes the screen is based on the screen identifier from the previous display.

The following example shows the logic for the CANCEL command:

NOTE If command is CANCEL and the hidden
identifier is blank, escape before moving
Imports to Exports so that the screen is
blanked out.
IF COMMAND IS EQUAL TO cancel
AND (import customer number IS EQUAL TO 0
EXIT STATE IS processing_ok
ESCAPE
.
.
.
NOTE: Main CASE OF COMMAND
CASE OF COMMAND
.
.
.
CASE cancel
NOTE Passes the hidden identifier rather than the import identifier when the display module is called.
USE dis_customer
WHICH IMPORTS: Entity View import_hidden_id customer
WHICH EXPORTS: Entity View export customer
.
.
.

Procedure Synthesis also creates a CASE CANCEL that USEs the action block that displays the data.