Curso GeneXus

Versión: Evolution 3
Curso online

More rules for defining behaviors

For the Transaction object we study the Add and Subtract rules and their combination with the Error rule, as well as the Serial rule to automatically number attributes that cannot use the Autonumber property.
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In the “Rules definition" video we studied the Error, Msg, Default and Noaccept rules. Here we will add the Add, Subtract with Error, and Serial rules.
Executing the first project
Declaration of rules
Global formulas-Advanced
Business Components
Rules definition
Rules in Transactions - More Knowledge
Rules definition
Another example of database update using transactions without form
More about order of execution in transaction rules
Two level transaction used as Business Component, and error management
Rules definition
Moments for rule triggering in transactions
How to update data using transaction logic without screen
More on order of execution for rules in transactions
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