QRCodeGenerator.CompactionMode Property

Gets or sets whether numeric, alphanumeric or byte mode should be used to encode the barcode’s data.

Namespace: DevExpress.XtraPrinting.BarCode

Assembly: DevExpress.Printing.v24.2.Core.dll

Declaration

C#

[DefaultValue(QRCodeCompactionMode.AlphaNumeric)]
public virtual QRCodeCompactionMode CompactionMode { get; set; }

VB.NET

<DefaultValue(QRCodeCompactionMode.AlphaNumeric)>
Public Overridable Property CompactionMode As QRCodeCompactionMode

Property Value

Type	Default	Description
QRCodeCompactionMode	AlphaNumeric	A QRCodeCompactionMode enumeration value.

Available values:

Name	Description
Numeric	Numeric data is encoded. Max. 7,089 characters.
AlphaNumeric	A combination of alphabetic and numeric characters is encoded. Max. 4,296 characters.
Byte	Binary data is encoded. Max. 2,953 bytes.

Remarks

If the data encoded in numeric or alphanumeric mode contains invalid characters for the QR Code barcode, switch to byte mode to interpret the data as a sequence of bytes and use this sequence to encode the barcode.

Set the barcode’s CompactionMode property to Byte to enable byte mode. To specify binary data to encode the barcode, do one of the following:

• Transform the data into a sequence of bytes and assign the sequence to the barcode’s BinaryData property.
• Assign the data to the barcode’s Text property to automatically use UTF-8 to convert the data into a sequence of bytes.

Related GitHub Examples

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

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-add-a-bar-code-to-a-report/CS/Form1.cs#L488

// Adjust the properties specific to the bar code type.
((QRCodeGenerator)barCode.Symbology).CompactionMode = QRCodeCompactionMode.AlphaNumeric;
((QRCodeGenerator)barCode.Symbology).ErrorCorrectionLevel = QRCodeErrorCorrectionLevel.H;