In This Article

CodabarSymbology Class

Namespace:: ActiproSoftware.UI.Avalonia.Controls.Barcodes

Assembly:: ActiproSoftware.Avalonia.DataVisualization.dll

Represents a barcode symbology implementation for Codabar.

public class CodabarSymbology : LinearBarcodeSymbologyBase

Inheritance:: object ObservableObjectBase BarcodeSymbologyBase LinearBarcodeSymbologyBase object

Remarks

This symbology is also known as NW-7, Monarch, Code 2 of 7, Rationalized Codabar, ANSI/AIM BC3-1995, and USD-4.

Codabar is a linear symbology that was designed in 1972 and is commonly used in libraries, blood banks, and on airbills (such as FedEx). Each character encoded is made up of 4 bars and 3 spaces for a total of 7 elements. The widths of bars and spaces vary between narrow and wide.

This symbology can encode digits 0-9 and the characters -$:/.+.

Each encoded value must begin and end with one of the start/stop characters: A, B, C, or D. The StartCharacter and StopCharacter properties determine which characters are used. The AreStartStopCharactersVisible property determines whether these start/stop characters are included in the displayed value.

This symbology is self-checking, so no checksum or check digit is required. However, if the IsChecksumEnabled property is true, the symbology's implementation auto-calculates and inserts a modulo-16 check digit.

Constructors

CodabarSymbology()

Initializes an instance of the class.

public CodabarSymbology()

Properties

AreStartStopCharactersVisible

Indicates whether the start/stop characters are visible in the displayed value.

public bool AreStartStopCharactersVisible { get; set; }

Property Value

bool:: The default value is false.

ExampleValue

An example value that is valid for the symbology.

public override string ExampleValue { get; }

Property Value

string

IsChecksumEnabled

Indicates whether the optional modulo-16 checksum should be added.

public bool IsChecksumEnabled { get; set; }

Property Value

bool:: The default value is false.

Name

The name of the symbology.

public override string Name { get; }

Property Value

string

StartCharacter

The start character used for the barcode.

public char StartCharacter { get; set; }

Property Value

char:: One of A, B, C, or D (case-insensitive). The default value is A.

StopCharacter

The stop character used for the barcode.

public char StopCharacter { get; set; }

Property Value

char:: One of A, B, C, or D (case-insensitive). The default value is B.

WideToNarrowRatio

The ratio of wide bars to narrow bars.

public double WideToNarrowRatio { get; set; }

Property Value

double:: The default value is 2.0.

Methods

CreateRenderData(BarcodeEncodingRequest)

Creates the render data for the specified encoding request.

public override BarcodeRenderData CreateRenderData(BarcodeEncodingRequest request)

Parameter	Type	Description
request	BarcodeEncodingRequest	The encoding request.

Returns

BarcodeRenderData:: The BarcodeRenderData for the encoded value.

GetModulesWidth(int)

Returns the width of the specified number of modules.

protected override double GetModulesWidth(int moduleCount)

Parameter	Type	Description
moduleCount	int	The number of modules.

Returns

double:: The calculated width, taking into account any adjustments such as wide-to-narrow ratios that a symbology may require.

Validate(string)

Validates the specified value.

public override BarcodeValidationResult Validate(string value)

Parameter	Type	Description
value	string	The value to validate.

Returns

BarcodeValidationResult:: A BarcodeValidationResult containing the validation result.

Inherited Members

Extension Methods