Shared variables

Syntax

  • Shared NumberVar x;
  • Shared StringVar y := “Hello, World!”;

Shared variables allow values to be used at any point in the processing of the report. Similar to a global variable, the shared values can also be accessed by subreports. This allows for a more direct method of comparison and allows the developer to circumvent the strict nature of the top-to-bottom report evaluation.

A shared variable can be defined, set, or recalled in any valid formula field. Their most common use is to store information that would otherwise be forgotten or inaccessible at a later stage in the report.

Basic implementation

Define the variables within a formula field:

Shared NumberVar x := 1000;
Shared NumberVar y;

Assigning the values is optional. To display the variable in a second formula later on in the report, the call is nearly identical:

Shared NumberVar x;
x