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A field is an area where information can be stored and manipulated. A field can
contain text or numbers and can:

Have a static value,

be extracted from incoming data,

be the result of a mathematical calculation.

Update Field events are used to load data from the printstream into a specified field.
Using Fields is described in Chapter 8.

There are two options available to update a field.

Fill which overrides any existing contents in the field and fills the field with
specified data.

Increment which adds specified data to the existing contents of the field.

The First Line, First Character, Number of Lines and Number of Characters for the
field are where the data to fill or increment the field is located in the text block.

Once filled, fields can be merged into added text in the environment and be
positioned anywhere on the page or used to fill charts (refer to Chapter 10, ‘Using
Dynamic Form Elements’

).

Certain events can be conducted on the content of these fields, such as the selection
of a graphic based on a part number (refer to Chapter 8, ‘Using Fields’).