.NET Postnet Generator SDK Library
Generate, print Postnet 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 POSTNET in .NET, C#, ASP.NET, VB.NET using .NET POSTNET Barcodes Generator

  • Generate POSTNET Barcodes in C#, VB.NET class & console applications
  • Generate POSTNET in ASP.NET web applications, webpage, etc
  • Printing POSTNET in .NET Windows Forms applications
  • Easily create & Print POSTNET in SQL Server Reporting Services & Crystal Reports
  • High quality POSTNET Bar Code in GIF, PNG, JPEG & BITMAP image formats
  • Completely developed in C#.NET managed code
  • Mature POSTNET barcode generating components used by 1000+ clients






.NET Barcode Postnet Generator Introduction
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Generating Barcode Postnet in .NET is one of the functions in OnBarcode's .NET Barcode Generators, which supports creating & printing Postnet 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 Postnet Generator - Barcode Postnet Introduction

POSTNET (Postal Numeric Encoding Technique), also known as USPS POSTNET Barcode, USPS POSTal Numeric Encoding Technique Barcode, is a barcode symbology that is used by the United States Postal Service to assist in directing mail. The ZIP Code or ZIP+4 code is encoded in half- and full-height bars.

.NET Postnet Generation - Postnet Valid Data Scope

.NET Postnet Generator encodes:
  • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
How to Generate & Print POSTNET in Visual Studio C# or VB.NET Class?
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Generating barcode POSTNET in C# Class example (C# POSTNET Generator Complete Demo Source Code):
   Linear postnet = new Linear();
postnet.Type = BarcodeType.POSTNET;
postnet.Data = "12345";
postnet.X = 1;
postnet.Y = 60;

// Generate Postnet and encode barcode to gif format
postnet.Format = System.Drawing.Imaging.ImageFormat.Gif;
postnet.drawBarcode("C://c#-postnet.gif");

// Print Postnet to C# Bitmap object
Bitmap postnetBitmap = postnet.drawBarcode();
Generating barcode POSTNET in VB.NET Class example (VB.NET POSTNET Generator Complete Demo Source Code):
   Dim postnet As OnBarcode.Barcode.Linear
postnet = New OnBarcode.Barcode.Linear()
postnet.Type = OnBarcode.Barcode.BarcodeType.POSTNET
postnet.Data = "123456789"
postnet.X = 1
postnet.Y = 60

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

' Print Postnet to vb.net Bitmap object
Dim postnetBitmap As Bitmap
postnetBitmap = postnet.drawBarcode()
How to Create & Draw Postnet 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=01234&TYPE=34.
  • To create barcode Postnet 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=01234&TYPE=34" />
How to Create & Encode Barcode Postnet to Image File (GIF, JPEG, PNG, BMP)?
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Creating barcode Postnet in C# Class example:
   Linear postnet = new Linear();
postnet.Type = BarcodeType.POSTNET;
postnet.Data = "98765";

// Generate POSTNET and encode barcode to bmp format
postnet.Format = System.Drawing.Imaging.ImageFormat.Bmp;
postnet.drawBarcode("C://c#-postnet.bmp");
Creating barcode Postnet in VB.NET Class example:
   Dim postnet As OnBarcode.Barcode.Linear
postnet = New OnBarcode.Barcode.Linear()
postnet.Type = OnBarcode.Barcode.BarcodeType.POSTNET
postnet.Data = "987654321"

' Generate POSTNET and encode barcode to jpg format
postnet.Format = System.Drawing.Imaging.ImageFormat.Jpeg
postnet.drawBarcode("C://vbnet-postnet.jpg")
In Visual Studio C# & VB.NET, How to Draw & Print Barcode Postnet to .NET Graphics, Stream & Bitmap Objects?
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Creating barcode Postnet in C# Class example:
   public void drawBarcode(Graphics graphics);

public void drawBarcode(string filename);

public Bitmap drawBarcode();

public void drawBarcode(Stream fileStream);
To draw & print barcode Postnet 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 Postnet Using .NET Barcode WinForms Controller
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  1. Add OnBarcode.Barcode.WinForms.dll to .net project reference.
  2. Add .NET Barcode 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 Postnet 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 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.
.NET Postnet Generator - Barcode Properties
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Category Properties Value Comments
Basic Property: Data
URL: DATA
Type: string
Default: "12345"
Barcode value to encode

POSTNET Valid Data Char Set:
  • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 (Digits)

POSTNET Valid data length:
  • 5, 6, 9, 11 digits only, excluding the last checksum digit

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

Set the value to BarcodeType.POSTNET.

POSTNET type value is BarcodeType.POSTNET (34).
Property: AddCheckSum
URL: ADD-CHECK-SUM
Type: bool
Default: false
AddCheckSum property is not applied here. .NET Barcode will automatically add one checksum character.
 
POSTNET
Special
Property: ShortTallRatio
URL: SHORT-TALL-RATIO
Type: float
Default: 0.4f
Short bar vs tall bar (Y) ratio
 
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 SDK 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 .NET HTML5 Document Viewer high quality C# Convert PDF to Tiff, C# Convert PDF to Word, C# Convert PDF to HTML, C# Convert PDF to Jpeg images, and their easy and simple documents, like C# PDF SDK, C# extract text from PDF, C# Compress PDF, Print PDF in C# and C# extract image from PDF.
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