Structure of a declarative DIALOG block
A declarative DIALOG
instruction is made of a single sub-dialog
block, with an optional DEFINE
clause to declare local variables.
Important: Unlike procedural
DIALOG
blocks, declarative
DIALOG
blocks can only define one sub-dialog block.The dialog instruction in the declarative DIALOG block binds program variables to form fields and defines the type of interaction that will take place for the data model (simple input, list input or query). The dialog implements individual control blocks that allows you to control the behavior of the interactive instruction. The dialog can also hold action handlers.
The declarative DIALOG
block can define the following dialog types:
- A list of choices controlled by a
MENU
sub-dialog block. - Simple record input with the
INPUT
sub-dialog block. - Query by example input with the
CONSTRUCT
sub-dialog block. - Read-only record list navigation with the
DISPLAY ARRAY
sub-dialog block. - Editable record list handling with the
INPUT ARRAY
sub-dialog block.