HP 3000 Manuals HP 3000 Manuals
Summary In this lesson you defined a number of dictionary items for this application. Among the dictionary items, you defined a validation table. Validation tables are implemented in much the same manner as validation ranges. The major difference is that a table contains a number of discrete values while a range specifies the lower and upper values to be applied to the field during validation. When you associate a validation table with a screen field, HP ALLBASE/4GL automatically validates the user's input against the table when data entry is complete. If the value entered exists in the table, processing continues normally. If the entered value does not exist in the table, HP ALLBASE/4GL displays the message that you have associated with the table. Processing then continues in accordance with the type of the message. If you don't define a message in association with the table, HP ALLBASE/4GL displays a system defined ERROR type message by default.