QRCodeErrorCorrectionLevel Enum

Specifies the amount of redundancy built into the coding of the QR Code to compensate for calculation errors.

Namespace: DevExpress.XtraPrinting.BarCode

Assembly: DevExpress.Printing.v18.1.Core.dll

Declaration

C#

[ResourceFinder(typeof(ResFinder))]
[TypeConverter(typeof(EnumTypeConverter))]
public enum QRCodeErrorCorrectionLevel

VB.NET

<ResourceFinder(GetType(ResFinder))>
<TypeConverter(GetType(EnumTypeConverter))>
Public Enum QRCodeErrorCorrectionLevel

Members

Name	Description
M	15% codewords can be restored.
L	7% codewords can be restored.
H	30% codewords can be restored.
Q	25% codewords can be restored.

Related API Members

The following properties accept/return QRCodeErrorCorrectionLevel values:

Library	Related API Members
Cross-Platform Class Library	QRCodeGenerator.ErrorCorrectionLevel
WPF Controls	BarCodePropertyProvider.QRCodeErrorCorrectionLevel

Remarks

Codewords are 8 bits long and use the “Reed–Solomon” error correction algorithm with four error correction levels. The higher the error correction level, the less storage capacity.

The values listed by the QRCodeErrorCorrectionLevel enumeration are used to set the QRCodeGenerator.ErrorCorrectionLevel property.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the QRCodeErrorCorrectionLevel enum.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

Reporting_how-to-add-a-bar-code-to-a-report-e167/CS/WindowsFormsApplication1/Form1.cs#L512

((QRCodeGenerator)barCode.Symbology).CompactionMode = QRCodeCompactionMode.AlphaNumeric;
((QRCodeGenerator)barCode.Symbology).ErrorCorrectionLevel = QRCodeErrorCorrectionLevel.H;
((QRCodeGenerator)barCode.Symbology).Version = QRCodeVersion.AutoVersion;

VB.NET

Reporting_how-to-add-a-bar-code-to-a-report-e167/VB/WindowsFormsApplication1/Form1.vb#L538

CType(barCode.Symbology, QRCodeGenerator).CompactionMode = QRCodeCompactionMode.AlphaNumeric
CType(barCode.Symbology, QRCodeGenerator).ErrorCorrectionLevel = QRCodeErrorCorrectionLevel.H
CType(barCode.Symbology, QRCodeGenerator).Version = QRCodeVersion.AutoVersion