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i use the CHAIN statement in my PAI for checking whether the input of a user is valid.
Here an example:
codePROCESS AFTER INPUT.
MODULE leave_programm AT-EXIT COMMAND.
CHAIN.
FIELD: field1,
field2,
field3
MODULE check_input.
ENDCHAIN.
MODULE user_command_0100.
[/code]
The Module check_input checks whether the user input in field 1 to 3 is valid (e.g. for a search of something). If the input isn't valid, i throw an error Message within check_input and the fields between CHAIN and ENDCHAIN on actual SCREEN accept a new user input, while other Fields on SCREEN doesn't accept input.
If everything's fine the program can move on with user_command_0100 and searching or whatever.
i use the CHAIN statement in my PAI for checking whether the input of a user is valid.
Here an example:
codePROCESS AFTER INPUT.
MODULE leave_programm AT-EXIT COMMAND.
CHAIN.
FIELD: field1,
field2,
field3
MODULE check_input.
ENDCHAIN.
MODULE user_command_0100.
[/code]
The Module check_input checks whether the user input in field 1 to 3 is valid (e.g. for a search of something). If the input isn't valid, i throw an error Message within check_input and the fields between CHAIN and ENDCHAIN on actual SCREEN accept a new user input, while other Fields on SCREEN doesn't accept input.
If everything's fine the program can move on with user_command_0100 and searching or whatever.
Bluesky
