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Versión: Evolution 3
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DB update using two-level business components

When we want to update data in a two-level transaction through the associated business component, how do we load it? Which are the methods used?    
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In the video “How to update data using transaction logic without screen” we introduced Business Components as a data type created as a mirror of the transaction and usable through variables and through its Save(), Load(), Delete() methods, as well as Insert(), Update(), InsertorUpdate(), Success(), in any object. But we only saw the case where the transaction had a single level. Here we will introduce the case of two-level transactions and how to work with the Business Component.
New entities added to the project
How to create a product image-gallery
Creation of a transaction
Creation of a two-level transaction
Business Components
Compound Data Types
Another example of database update using transactions without form
Two level transaction used as Business Component, and error management
Compound data types
How to update data using transaction logic without screen
Data Population using Business Components and Data Providers
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