C# Data Matrix Barcode Generator Library
Generate, create, render data matrix 2d barcode from string data with free open source c# example. no font

• Completely compatible with .NET Framework 2.0 and later versions
• Easy to generate Data Matrix ECC 200 barcodes in Visual C#.NET programming
• Dynamically generating Data Matrix in ASP.NET, WinForms, Crystal Reports and RDLC Reports
• Draw Data Matrix barcode images in stream & graphics object and save in multiple image formats
• Offer various barcode settings for Data Matrix including module width, format mode, margins, etc
• Puchase royalty-free and permanent license of .NET Data Matrix Barcode Generator Library

This guide helps you implement Data Matrix barcode generation across VB.NET projects, WinForms desktop apps, WPF applications, and ASP.NET MVC platforms using C#. You will explore complete encoding, customization, and deployment workflows for professional .NET development.

This KeepAutomation barcode encoder dll for .NET also supports Data Matrix barcode generation in ASP.NET web applications. Users can easily create Data Matrix barcodes in Websites, Microsoft IIS as well as Visual C# Class Library & Console applications. Here are more details for you:
How to print barcode in Visual C# with ASP.NET framework web control.
Create barcodes in ASP.NET Core web app using C#
Create barcodes in ASP.NET Core MVC web app using C#

• Set FNC1 to KeepAutomation.Barcode.FNC1.First
  
  
• In barcode data setting CodeToEncode, around AI code with "()", and followed by AI data, such as "(02)225(03)33344". Here "02", "03" are the AI code, "225", "33344" is the AI data,

• Set TildeEnabled to true
  
  
• Use '~ddd' for non-printable chars. For example, ASCII char [GS] is non-printable, and its decimal value is 29. In barcode data, you need use ~029 for char [GS].

//  Byte array to encode
byte[] dataBytes = new byte[] { 0x41, 0x42, 0x43, 0x44, 0x45 };

//  Convert byte array to the input (property CodeToEncode)
String inputMsg = "";
foreach (byte b in dataBytes)
    inputMsg += "~" + b.ToString().PadLeft(3, '0');

//  Create barcode
BarCode barcode = new BarCode();
barcode.Symbology = Symbology.DataMatrix;
barcode.DataMatrixDataMode = DataMatrixDataMode.Base256;
//  enable '~' in the input message
barcode.TildeEnabled = true;
barcode.CodeToEncode = inputMsg;

//  set module size to 5 pixels
barcode.BarcodeUnit = BarcodeUnit.Pixel;
barcode.X = 5;
barcode.Y = 5;

barcode.generateBarcodeToBitmap().Save(@"C:\DataMatrix_Bytes.png");

//  Message in Japanese
String unicodeMsg = @"おはようございます";

//  Convert Unicode string to data bytes
byte[] dataBytes = Encoding.Unicode.GetBytes(unicodeMsg);
//  Convert byte array to the input (property CodeToEncode)
String inputMsg = "";
foreach (byte b in dataBytes)
    inputMsg += "~" + b.ToString().PadLeft(3, '0');

//  Create barcode
BarCode barcode = new BarCode();
barcode.Symbology = Symbology.DataMatrix;
barcode.DataMatrixDataMode = DataMatrixDataMode.Base256;
//  enable '~' in the input message
barcode.TildeEnabled = true;
barcode.CodeToEncode = inputMsg;

//  set module size to 5 pixels
barcode.BarcodeUnit = BarcodeUnit.Pixel;
barcode.X = 5;
barcode.Y = 5;

barcode.generateBarcodeToBitmap().Save(@"C:\DataMatrix_Japanese.png");

Data Matrix Character Encoding in C#

Valid Encoding Character Sets

Maximum Data Length

Data Matrix Encoding Modes

Advanced Data Encoding Using C#

Encode Non-Printable Characters

Encode Unicode Text

Data Matrix Barcode Dimension & Size Settings in C#

Square Data Matrix

Rectangular Data Matrix

Advanced Size Configuration

Data Matrix Color & Image Options in C#

Color Customization

Standard Data Matrix colors are dark barcode on light background. Inverted (light on dark) is also supported. Custom colors (e.g., red) may require scanner compatibility.

Image Format Export

Frequently Asked Questions