Supported .NET Aggregate Data Types
Datatable
A .NET Framework object that is the equivalent of a fixed or unbounded table that contains simple types in COBOL or Report Program Generator (RPG) data declarations. After you have a DataTable object, you can call methods on that object to gain access to its rows. Datatables supported by TI have disconnected, client-side cursors. For more information, see Recordsets and Datatables.
Structures
A user-defined value type. Like a class, structures can contain constructors, constants, fields, methods, properties, indexers, operators, and nested types. Unlike classes, however, structures do not support inheritance.
The distributed program call (DPC) programming model for the IBM i supports:
Only single-level .NET structures.
Arrays of .NET structures.
The DPC programming model for the IBM i does not support:
Nesting of structures.
Arrays within structures.
Variable sized structures in which the last parameter is a string.
Array
A set of sequentially indexed elements that have the same intrinsic data type. Transaction Integrator (TI) supports an array of any of the .NET data types in this topic. Each element of an array has a unique identifying index number. Changes made to one element of an array do not affect the other elements. TI supports multidimensional arrays. However, only the outermost array of a multidimensional array can vary in size; all the other arrays must be fixed in size.