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The GeneXus Data Types can be divided into:

  • Basics: the very well-known data types (Numeric, Character, etc.).
  • Business Components: to use the Business Logic of Transactions in other objects, use Business Components.
  • Extended Types: those used to handle things like Files, XMLs, Directories, Web sessions, Mail sessions, Excel and Word documents, etc.
  • Structured Data Types: it is the GeneXus object which allows defining complex data structures.

Where are Data Types used?

  • In an Attribute definition: only Basics are allowed
  • In a Domain definition: all except Business Components are allowed 
  • In a Variable definition: all kinds of data types are allowed 
  • In the members of a Structured Data Type definition: all kinds of data types are allowed 

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