.NET Code 39 Generator SDK Library
Generate, draw Code 39 linear barcode images for Visual C#, VB.NET, ASP.NET projects
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"For a new project, I'd try some barcode tools and compare them. I have to say your barcode toolkit is more flexible than other toolkits on the market."
- Norris Wilson, US

Generating & Printing Code 39 in .NET, C#, ASP.NET, VB.NET using .NET Code39 Barcodes Generator

  • Generate Code 39 Barcodes in C#, VB.NET class & console applications
  • Generate Code 39 barcode images in ASP.NET web applications
  • Printing Code 39 1d barcodes in .NET Windows Forms applications
  • Create & Print Code-39 in Reporting Service & Crystal Reports
  • Compatible with ISO / IEC 16388 (2nd edition 2007-05-15)
  • High quality Code-39 Bar Code images in GIF, PNG, JPEG & BITMAP
  • Completely developed in Visual C# .NET
  • Mature Code-39 barcode generating components used by 1000+ clients






.NET Barcode Code 39 Generator Introduction
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Generating Barcode Code 39 in .NET is one of the functions in OnBarcode's .NET Barcode Generators, which supports creating & printing Code-39 and 30+ other linear & 2D bar codes for C#, VB.NET & ASP.NET applications.
OnBarcode develops several .NET Barcode Generation components for different .NET development environments:

.NET Code 39 Generator - Barcode Code-39 Introduction

Code 39 (also known as "USS Code 39", "Code 3/9", "Code 3 of 9", "USD-3", "Alpha39", "Type 39") is a barcode symbology that can encode uppercase letters (A through Z), digits (0 through 9) and a handful of special characters like the $ sign.
Code 39 is restricted to 44 characters. In Full ASCII Code 39 Symbols 0-9, A-Z, "." ,and "-" are the same as their representations in Code 39. Lower case letters, additional punctuation characters and control characters are represented by sequences of two characters of Code 39.

.NET Code 39 Generation - Code-39 Valid Data Scope

.NET Code 39 Generator encodes:
  • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
  • Uppercase letters (A - Z)
  • - (Dash), $ (Dollar), % (Percentage), (Space), . (Point), / (Slash), + (Plus)
.NET Barcode Code 39 Extension encodes:
  • all 128 ASCII characters
How to Generate & Print Code-39 in Visual Studio C# or VB.NET Class?
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Generating barcode Code-39 in C# Class example (C# Code 39 Generator Complete Demo Source Code):
   Linear code39 = new Linear();
code39.Type = BarcodeType.CODE39;

// Set Code 39 barcode value.
// Code39 supports encoding upper case characters, digits & some special characters.
// To encode lower case chars, please use Code 39 extension.
code39.Data = "CODE39";

// Set code 39 bar width (X module) and bar height (Y module)
code39.X = 1;
code39.Y = 60;

// Generate Code-39 and encode barcode to gif format
code39.Format = System.Drawing.Imaging.ImageFormat.Gif;
code39.drawBarcode("C://csharp-code39.gif");

// Print Code-39 to C# Bitmap object
Bitmap code39Bitmap = code39.drawBarcode();
Generating barcode Code-39 in VB.NET Class example (VB.NET Code 39 Generator Complete Demo Source Code):
   Dim code39 As OnBarcode.Barcode.Linear
code39 = New OnBarcode.Barcode.Linear()
code39.Type = OnBarcode.Barcode.BarcodeType.CODE39

' Set Code 39 barcode value.
' Code39 supports encoding upper case characters, digits & some special characters.
' To encode lower case chars, please use Code 39 extension.
code39.Data = "CODE39"

' Set code 39 bar width (X module) and bar height (Y module)
code39.X = 1
code39.Y = 60

' Generate Code-39 and encode barcode to png format
code39.Format = System.Drawing.Imaging.ImageFormat.Png
code39.drawBarcode("C://vbnet-code39.png")

' Print Code-39 to vb.net Bitmap object
Dim code39Bitmap As Bitmap
code39Bitmap = code39.drawBarcode()
How to Create & Draw Code 39 Image in ASP.NET Aspx or Html Pages Without ASP.NET Barcode Controller?
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  • Under demo package, copy barcode folder and its contents to your IIS, and create a new virtual directory.
  • Restart IIS, navigate to http://YourDomain:Port/barcode/linear.aspx?DATA=CODE39&TYPE=4.
    Code 39 barcode type value is 4. To encode Code 39 extension, set type value to 5, like TYPE=5
  • To create barcode code-39 image in html or aspx pages, you can insert a image tag (img) into your page.
    For example, <img src="http://YourDomain:Port/barcode/linear.aspx?DATA=CODE39&TYPE=4" />
How to Create & Encode Barcode Code 39 to Image File (GIF, JPEG, PNG, BMP)?
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Creating barcode Code-39 image in C# Class example:
   Linear code39 = new Linear();
code39.Type = BarcodeType.CODE39;
code39.Data = "0123456789";
code39.N = 2.0f;

// Create Code-39 and encode barcode to Jpeg format
code39.Format = System.Drawing.Imaging.ImageFormat.Jpeg;
code39.drawBarcode("C://csharp-code39.jpg");
Creating barcode Code-39 image in VB.NET Class example:
   Dim code39 As OnBarcode.Barcode.Linear
code39 = New OnBarcode.Barcode.Linear()
code39.Type = OnBarcode.Barcode.BarcodeType.CODE39
code39.Data = "0123456789"
code39.N = 2.0f

' Create Code-39 and encode barcode to Jpeg format
code39.Format = System.Drawing.Imaging.ImageFormat.Jpeg
code39.drawBarcode("C://vbnet-code39.jpg")
In Visual Studio C# & VB.NET, How to Draw & Print Barcode Code 39 to .NET Graphics, Stream & Bitmap Objects?
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To draw & print barcode Code-39 to C# objects:
   public void drawBarcode(Graphics graphics);

public void drawBarcode(string filename);

public Bitmap drawBarcode();

public void drawBarcode(Stream fileStream);
To draw & print barcode Code-39 to VB.NET objects:
   Public Sub drawBarcode(ByRef graphics As Graphics)

Public Sub drawBarcode(ByVal filename As String)

Public Function drawBarcode() As Bitmap

Public Sub drawBarcode(ByRef fileStream As Stream)
Generating & Printing Barcode Code 39 Using .NET Barcode WinForms Controller
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  1. Add OnBarcode.Barcode.WinForms.dll to C# or VB.NET project reference.
  2. Add .NET Barcode for Windows Form Control to .NET Visual Studio Toolbox.
    1. Right click .NET Visual Studio Toolbox, select menu Choose Items...
    2. In "Choose Toolbox Items" form, click button "Browse...", and select dll OnBarcode.Barcode.WinForms.dll.
    3. After selection, you will find four items under "Components" section LinearWinForm, DataMatrixWinForm, PDF417WinForm, and QRCodeWinForm.
Creating & Drawing Barcode Code 39 Using ASP.NET Barcode Web Form Controller
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  1. Add OnBarcode.Barcode.ASPNET.dll to asp.net project reference.
  2. Add .NET Barcode for Windows Form Control to .NET Visual Studio Toolbox.
    1. Right click .NET Visual Studio Toolbox, select menu Choose Items...
    2. In "Choose Toolbox Items" form, click button "Browse...", and select dll OnBarcode.Barcode.WinForms.dll.
    3. After selection, you will find four items under "Components" section: LinearWinForm, DataMatrixWinForm, PDF417WinForm, and QRCodeWinForm.
.NET Code 39 Generator - Barcode Properties
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Category Properties Value Comments
Basic Property: Data
URL: DATA
Type: string
Default: "12345"
Barcode value to encode

Code 39 Valid Data Char Set:
  • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 (Digits)
  • A - Z (Uppercase letters)
  • - (Dash), $ (Dollar), % (Percentage), (Space), . (Point), / (Slash), + (Plus)


Code 39 extension Valid Data Char Set:
  • All ASCII 128 characters

Property: Type
URL: TYPE
Type: BarcodeType
Default: CODE128 (7)
Linear barcode symbology type.

Set the value to BarcodeType.CODE39 or BarcodeType.CODE39EX.

Code 39 type values are BarcodeType.CODE39 (4) or BarcodeType.CODE39EX (5).
Property: AddCheckSum
URL: ADD-CHECK-SUM
Type: bool
Default: false
AddCheckSum property is optional. Modulo 43 will be applied, if AddCheckSum property is true.
 
Code 39
Special
Property: I
URL: I
Type: float
Default: 1.0f
The space between 2 characters in code 39. This a multiple of X.
Property: N
URL: N
Type: float
Default: 2.0f
Wide/narrow ratio, 2.0 - 3.0 inclusive, default is 2.
Property: ShowStarStopInText
URL: SHOW-START-STOP-IN-TEXT
Type: bool
Default: true
If true, display a * in the beginning and end of barcode text
Property: ProcessTilde
URL: PROCESS-TILDE
Type: bool
Default: false
Set the ProcessTilde property to true, if you want use the tilde character "~" to specify special characters in the input data.

  • 1-byte character: ~0dd/~1dd/~2dd (character value from 000 ~ 255); ASCII character '~' is presented by ~126
    Strings from "~256" to "~299" are unused
 
Barcode
Size
Related
Property: AutoResize
URL: AUTO-RESIZE
Type: bool
Default: false
Auto resize the generated barcode image
Property: BarAlignment
URL: BAR-ALIGNMENT
Type: int
Default: 1 (center)
Barcode horizontal alignment inside the image. 0: left, 1: center, 2: right.
Property: UOM
URL: UOM
Type: UnitOfMeasure
Default: PIXEL (0)
Unit of meature for all size related settings in the library.

Valid values:
  • UnitOfMeasure.PIXEL (0)
  • UnitOfMeasure.CM (1)
  • UnitOfMeasure.INCH (2)
Property: X
URL: X
Type: float
Default: 1
Width of barcode bar module (narrow bar), default is 1 pixel
Property: Y
URL: Y
Type: float
Default: 60
Height of barcode bar module, default is 60 pixel
Property: BarcodeWidth
URL: BARCODE-WIDTH
Type: float
Default: 0
Barcode image width.

If barcodeWidth setting is smaller than the barcode required minimum width, the library will automatically reset to barcode minimum width.
Property: BarcodeHeight
URL: BARCODE-HEIGHT
Type: float
Default: 0
Barcode image height.

If barcodeHeight setting is smaller than the barcode required minimum height, the library will automatically reset to barcode minimum height.
Property: LeftMargin
URL: LEFT-MARGIN
Type: float
Default: 0
Barcode image left margin size.
Property: RightMargin
URL: RIGHT-MARGIN
Type: float
Default: 0
Barcode image right margin size.
Property: TopMargin
URL: TOP-MARGIN
Type: float
Default: 0
Barcode image top margin size.
Property: BottomMargin
URL: BOTTOM-MARGIN
Type: float
Default: 0
Barcode image bottom margin size.
Property: Resolution
URL: RESOLUTION
Type: int
Default: 72
Barcode image resolution in DPI (Dots per inch).
Property: Rotate
URL: ROTATE
Type: Rotate
Default: Rotate0 (0)
Valid values:

  • Rotate.Rotate0 (0)
  • Rotate.Rotate90 (1)
  • Rotate.Rotate180 (2)
  • Rotate.Rotate270 (3)
 
Barcode
Colors
Property: BackColor
URL: BACK-COLOR
Type: Color
Default: white
Barcode image background color
Property: ForeColor
URL: FORE-COLOR
Type: Color
Default: black
Barcode image foreground color
 
Font
Style
Property: ShowText
URL: SHOW-TEXT
Type: bool
Default: true
If true, display barcode data text under the barcode, otherwise do not display.
Property: TextFont
URL: TEXT-FONT
Type: Font
Default:
new Font("Arial", 9f, FontStyle.Regular)
Barcode text font style.

In ASP.NET web streaming, using the url paramter in the following format:
&TEXT-FONT=Arial|9|regular
Property: TextMargin
URL: TEXT-MARGIN
Type: float
Default: 6
Space between barcode and barcode data text, default is 6 pixel
Property: TextColor
URL: TEXT-COLOR
Type: Color
Default: black
Barcode text color
 
Image
Format
Property: Format
URL: FORMAT
Type: ImageFormat
Default: Png
Barcode image encoding type.
 
Methods
// generate barcode and encode to image file
public void drawBarcode(string filename)

// generate barcode and paint on Graphics object
public void drawBarcode(Graphics graphics)

// generate barcode and paint on Bitmap object
public Bitmap drawBarcode()

// generate barcode and paint on Stream object
public void drawBarcode(Stream fileStream)

// generate barcode and paint on byte[] object
public byte[] drawBarcodeAsBytes()
 
In WebStream query string, please use int value for Enums, "true" and "false" for bool.
All .NET Barcode Generator Supporting Bar Code Types
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Barcode Generator DLL for .NET - Bar Code Types Generation

OnBarcode is a market-leading provider of barcode imaging generator, reader controls and components for ASP.NET, Windows Forms, WPF, as well Java, Android, iOS (iPhone, iPad) across all major enterprise development platforms. We provides comprehensive tutorials and how-tos for various linear, 2d barcode information, such as C# in ASP.NET, C# .NET, C# Barcode Encoding, C# Barcode Image, VB.NET in ASP.NET, VB.NET Winforms, VB.NET Barcode Encoding, VB.NET Barcode Image, Java JSP Servlet. OnBarcode barcode products are supported by RasterEdge high quality .NET Imaging SDK, Java Imaging Library, and their easy and simple documents, like imaging in C#, imaging in VB.NET, PDF in C# and PDF in VB.NET.
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