barcode

The barcode object supplies the information required to display a barcode. This information includes the type of barcode and a set of options that varies from one type of barcode to another.

Designer can support two types of barcodes: hardware and software. However, an XFA application is not required to support any particular set of barcodes. Hardware barcodes are displayed by particular printers. The set of supported barcodes may vary depending on the display device, because some printers have built-in support for particular barcodes. Software barcodes are drawn stroke by stroke by the XFA application itself. When displaying on a screen, which is not accessible to barcode readers, an XFA application may also revert to displaying just a placeholder rather than an accurate barcode.

For each type of barcode there are usually two separate specifications, one for the barcode itself and one for the barcode’s placement in relation to the physical page and to surrounding printed matter. The creator of the form design is responsible for ensuring that the barcode is placed correctly on the page. The XFA application is responsible for correctly rendering the barcode using the user data. The user data must be compatible with the barcode; that is, it must conform to the allowed character set and string length.

Hierarchy of objects

Model	Child objects
Form Model	extras

Parent class

node class class

Properties

Name	Description	Type	Access
charEncoding	Specifies the character encoding of the value that is encoded into a barcode.	String	Read /Write
checksum	Specifies an algorithm for the checksum to insert into the barcode.	String	Read /Write
dataColumnCount	Specifies an optional number of data columns to encode for supported barcodes. This property applies to two-dimensional (2D) barcodes only.	String	Read /Write
dataLength	Specifies the maximum number of characters for this instance of the barcode. This property applies to one-dimensional barcodes only.	String	Read /Write
dataPrep	Defines preprocessing that is applied to the data written in the barcode.	String	Read /Write
dataRowCount	Specifies an optional number of data rows to encode for supported barcodes. This property applies to 2D barcodes only.	String	Read /Write
endChar	Specifies an optional ending control character to append to barcode data.	String	Read /Write
errorCorrectionLevel	Specifies an optional error correction level to apply to supported barcodes. This property applies to 2D barcodes only.	String	Read /Write
moduleHeight	Determines the height of a set of bars used to encode one character of supplied text.	String	Read /Write
moduleWidth	Specifies different aspects of a barcode depending on the class of barcodes being used.	String	Read /Write
printCheckDigit	Specifies whether to print the check digits in the human-readable text.	String	Read /Write
rowColumnRatio	An optional ratio of rows to columns for supported 2D barcodes.	String	Read /Write
startChar	Specifies an optional starting control character to add to the beginning of the barcode data.	String	Read /Write
textLocation	Specifies the location of any text associated with the barcode.	String	Read /Write
truncate	Truncates the right edge of the barcode for supported formats.	String	Read /Write
type	Specifies the pattern used by an object.	String	Read /Write
upsMode	Represents the mode in a UPS Maxicode barcode.	String	Read /Write
use	Invokes a prototype.	String	Read /Write
usehref	Invokes an external prototype.	String	Read /Write
wideNarrowRatio	Specifies a ratio of wide bar to narrow bar in supported barcodes.	String	Read /Write

Methods

None