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:

Barcode Generation in ASP.NET - Creating barcodes in ASP.NET Web applications
Barcode Generation in Windows Forms - Printing barcodes in C#, VB.NET Windows Forms applications
Barcode Generation in Reporting Service - Drawing barcodes in Microsoft Reporting Service 2005 & 2008

 

.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

 

Generating barcode Code-39 in C# Class example (C# Source Code to Create Code-39 barcodes)

	        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 = ImageFormat.Gif;
	        code39.drawBarcode("c#-code39.gif");
	        
	        // Print Code-39 to C# Bitmap object
	        Bitmap code39Bitmap = code39.drawBarcode();

Generating barcode Code-39 in VB.NET Class example

	        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 = ImageFormat.Png
	        code39.drawBarcode("vbnet-code39.png")
	        
	        // Print Code-39 to vb.net Bitmap object
	        Dim code39Bitmap As Bitmap
	        code39Bitmap = code39.drawBarcode();

 

• 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" />
  
  

 

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 = 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 = ImageFormat.Jpeg
	        code39.drawBarcode("C://vbnet-code39.jpg")

 

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)

 

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.

 

1. Add OnBarcode.Barcode.ASPNET.dll to asp.net project reference
   
   
2. Add .NET Barcode for ASP.NET Web 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.ASPNET.dll
      
      
   3. After selection, you will find four items under "Components" section: LinearWebForm, DataMatrixWebForm, PDF417WebForm, and QRCodeWebForm.

 

Category	Class Properties	WebStream Properties	Default	Comments
Basic	Data	DATA	"12345"	value to encode
	Type	TYPE	BarcodeType.CODE128 (7)	linear barcode type, default is Code128. Code-39 type value is BarcodeType.CODE39 (4) Code-39 extensiion is: BarcodeType.CODE39EX (5)
	AddCheckSum	ADD-CHECK-SUM	true	AddCheckSum property is optional. Modulo 43 will be applied, if AddCheckSum property is true.
Code 39 Special	I	I	1.0	The space between 2 characters in code 39; This a multiple of X; The default is 1.;
	N	N	2.0	Wide/narrow ratio, 2.0 - 3.0 inclusive, default is 2.
	ShowStarStopInText	SHOW-START-STOP-IN-TEXT	true	If true, display a * in the beginning and end of barcode text
Size Related	UOM	UOM	UnitOfMeasure.PIXEL (0)	Unit of meature for all size related setting in the library. Valid values: UnitOfMeasure.PIXEL (0), UnitOfMeasure.CM (1), UnitOfMeasure.INCH (2)
	X	X	1	width of barcode module (narrow bar), default is 1 pixel
	Y	Y	60	barcode module height, default is 60 pixel
	BarcodeWidth	BARCODE-WIDTH	0	barcode image width
	BarcodeHeight	BARCODE-HEIGHT	0	barcode image height
	LeftMargin	LEFT-MARGIN	0	image left margin
	RightMargin	RIGHT-MARGIN	0	image right margin
	TopMargin	TOP-MARGIN	0	image top margin
	BottomMargin	BOTTOM-MARGIN	0	image bottom margin
	Resolution	RESOLUTION	72	in DPI
	Rotate	ROTATE	Rotate.Rotate0 (0)	valid values: Rotate.Rotate0 (0), Rotate.Rotate90 (1), Rotate.Rotate180 (2), Rotate.Rotate270 (3)
Text & Color	ShowText	SHOW-TEXT	true	If true, display barcode data text, otherwise do not display.
	ShowCheckSumChar	SHOW-CHECK-SUM-CHAR	true	If true, display the check sum character in the end of data, if there is a check sum.
	TextFont	TEXT-FONT	Arial, Plain, 11	Barcode text font style. default is: new Font("Arial", 9f, FontStyle.Regular); Using website, using: &TEXT-FONT=Arial|9|regular
	TextMargin	TEXT-MARGIN	6	Space between barcode and barcode data text, default is 6 pixel
In WebStream query string, please use int value for Enums, "true" and "false" for bool.