Referencing R/3 Arrays (SAP Library - HTMLBusiness Language Reference)

Referencing R/3 Arrays

In addition to simple fields, the Internet Transaction Server (ITS) also processes arrays.

On the R/3 side, arrays are constructed as step loops or table controls in the screen, or sent from the screen to the ITS via RFC. You can access the individual elements in an array by specifying an index in square brackets after the field name. This assignment is valid for step loop fields in either direction.

If the square brackets following the field name do not contain a value, the data transferred from the HTML document to the R/3 System is appended to the existing fields. The array cannot be longer than the associated step loop on the screen. If it is, a runtime error results.

Syntax Conventions

The following syntax conventions are observed in tables:

Optional derivations are enclosed in square brackets ( [] ).

Curly brackets ( {} ) indicate zero or repetitions of the expression within the brackets.

A vertical line ( | ) links alternative derivatives ("OR").

Parentheses ( () ) logically combine components in cases where uniqueness cannot be guaranteed.