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In This Article

QrCodeSymbology Class

Namespace:
ActiproSoftware.Windows.Controls.BarCode
Assembly:
ActiproSoftware.BarCode.Wpf.dll

Represents a bar code symbology implementation for QrCode.

public class QrCodeSymbology : Grid2DBarCodeSymbology
Inheritance:
object Visual UIElement FrameworkElement BarCodeSymbology Grid2DBarCodeSymbology object

Remarks

QR Code is a two dimensional grid symbology, developed in 1994 by Denso. It was initially intended for use in production control of automotive parts, but it has become widespread in other fields.

This symbology can encode a maximum of 7089 numerical characters, 4296 alphanumeric characters, 2953 binary characters, or 1817 Kanji characters.

Constructors

QrCodeSymbology()

Initializes an instance of the class.

public QrCodeSymbology()

Properties

AllowLowercase

Indicates whether lowercase characters are allowed.

public bool AllowLowercase { get; set; }

Property Value

bool:

true if lowercase characters are allowed; otherwise, false will force all lowercase characters to be uppercase. The default value is false.

Remarks

The QR code specification does not allow lowercase characters when using the alphanumeric encoding mode. Therefore, when allowing lowercase characters the binary encoding mode must be used.

EciMode

The Extended Channel Interpretation (ECI) mode used to encode the specified value, when the EncodingMode resolves to Binary.

public EciMode? EciMode { get; set; }

Property Value

EciMode?:

The default value is null, which indicates the ECI mode will be auto-selected based on the specified value.

EncodingMode

The mode used to encode the specified value.

public QrEncodingMode? EncodingMode { get; set; }

Property Value

QrEncodingMode?:

The default value is null, which indicates the encoding mode will be auto-selected based on the specified value.

ErrorCorrectionLevel

The percentage of data loss that can occur on a symbol before it becomes unreadable. As the error correction level increases, the amount of data that can be encoded decreases.

public QrErrorCorrectionLevel ErrorCorrectionLevel { get; set; }

Property Value

QrErrorCorrectionLevel:

The error correction level.

MaskIndex

The QR mask applied to the code.

public int? MaskIndex { get; set; }

Property Value

int?:

The default value is null, which indicates the mask will be auto-selected based on the specified value.

Version

The version of the QR symbol, which determines the number of modules that compose the symbol, thus contributing to the maximum amount of data that can be encoded.

public QrVersion? Version { get; set; }

Property Value

QrVersion?:

The default value is null, which indicates the version will be auto-selected based on the specified value.

Methods

OnValueChanged(string?, string?)

Occurs when the value of the Value property is changed.

protected override void OnValueChanged(string? oldValue, string? newValue)
Parameter Type Description
oldValue string

The old value.
newValue string

The new value.

ValidateValue(string?)

Validates that the symbology can parse the specified value.

public override ValidationResult ValidateValue(string? value)
Parameter Type Description
value string

The value to validate.

Returns

ValidationResult:

A ValidationResult containing the result of the validation.

Fields

AllowLowercaseProperty

Defines the AllowLowercase property.

public static readonly DependencyProperty AllowLowercaseProperty

EciModeProperty

Defines the EciMode property.

public static readonly DependencyProperty EciModeProperty

EncodingModeProperty

Defines the EncodingMode property.

public static readonly DependencyProperty EncodingModeProperty

ErrorCorrectionLevelProperty

Defines the ErrorCorrectionLevel property.

public static readonly DependencyProperty ErrorCorrectionLevelProperty

MaskIndexProperty

Defines the MaskIndex property.

public static readonly DependencyProperty MaskIndexProperty

VersionProperty

Defines the Version property.

public static readonly DependencyProperty VersionProperty

Inherited Members

Extension Methods