Version: GeneXus 16

Introduction to GeneXus for GeneXus for mobile Course

Application grows up

How do we represent that a country has a number of cities? Creating a second level in the structure of the Country transaction.

We see that GeneXus creates two tables and focus on the primary key corresponding to the second level. We see the grid added in the web form to record cities. We add the city to the Attraction transaction and specify that it may be empty (nullable) in runtime. 

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