Java Barcode Generator, .NET Barcode Generator for C#, ASP.NET, VB.NET
HOME PURCHASE SITEMAP COMPANY
Home > Products > .NET Barcode > .NET UPC-A Generator for .NET, ASP.NET, C#, VB.NET


.NET UPC-A Generator for .NET, ASP.NET, C#, VB.NET

It is also known as Universal Product Code version A, UPC-A Supplement 5/Five-digit Add-On, UPC-A Supplement 2/Two-digit Add-On, UPC-A+5, UPC-A+2, UPC Code, UPC Symbol, GTIN-12, GS1-12, UCC-12

Quick Navigate
The "UPC-A bar code" is by far the most common and well-known symbology, at least in the United States. An UPC-A bar code is the bar code you will find on virtually every consumer good on the shelves of your local supermarket, as well as books, magazines, and newspapers. It is commonly called simply a "UPC bar code" or "UPC Symbol." This isn't entirely accurate since there are a number of other UPC formats (UPC-E, UPC 2-Digit Supplement, UPC 5-Digit Supplement).

Sample of a UPC-A Barcode
The value to encode by UPC-A has the following structure:
  • 1 digit for Number System (0: regular UPC codes, 1: reserved, 2: random weight items marked at the store, 3: National Drug Code and National Health Related Items code, 4: no format restrictions, for in-store use on non-food items, 5: for use on coupons, 6: reserved, 7: regular UPC codes, 8: reserved, 9: reserved)
  • 5 digits for Manufacturer (Company) Code or prefix. This number is assigned by the Uniform Code Council (UCC)
  • 5 digits for Product Code which is assigned by the manufacturer
  • 1 digit for checksum
Add-On or Supplement code
The Add-On Symbols were designed to encode information supplementary to that in the main bar code symbol on periodicals and paperback books. The Add-On can be composed of 2 or 5 digits only.

Sample of an UPC-A Two-Digit Add-On Barcode

Sample of an UPC-A Five-Digit Add-On Barcode
UPC-A Barcode for .NET, ASP.NET supports:
  • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
  1. Copy folder barcode from your downloaded package, to your IIS folder, e.g. C:\Inetpub.
  2. Create a new virtual directory, named barcode.
  3. Restart IIS.
  4. Test your installation, goto http://YourDomain:port/barcode/linear.aspx?Type=UPCA&Data=01234567890
  5. To create barcode image in your ASP.NET application, you can pass the url to IMG tag src value. For example, <img src="http://YourDomain:port/barcode/linear.aspx?Type=UPCA&Data=01234567890" />
  1. Integrate Barcode Controller to your ASP.NET project.
    1. Copy BarcodeLib.Barcode.dll to the folder bin of your web application the barcodes are needed for.
    2. Copy linear.aspx file to your web application.
  2. Add barcode library to your Visual Studio Toolbox.
    1. Open Toolbox in Visual Studio. Click menu View, and check submenu Toolbox.
    2. Right click Toolbox, click menu Choose Items...
    3. Goto .NET Framework Components tab.
    4. Check component LinearWebForm, and its namespace is BarcodeLib.Barcode.Linear
    5. If no component found, click Browse... button and select BarcodeLib.Barcode.dll file.
  3. Now you can see the component displayed on Toolbox. You can drag LinearWebForm on your aspx page, change barcode setting through properties window.
  1. Add Reference BarcodeLib.Barcode.dll to your project. Do not copy the dll to the bin directory, Visual Studio will do so, during project compilation time.
    1. In your .NET windows project, right click mouse over Refereces in your Solution Explorer window. Then click menu "Add Reference ...".
    2. Add BarcodeLib.Barcode.dll to your project.
  2. Add barcode library to your Visual Studio Toolbox.
    1. Open Toolbox in Visual Studio. Click menu View, and check submenu Toolbox.
    2. Right click Toolbox, click menu Choose Items...
    3. Goto .NET Framework Components tab.
    4. Check component LinearWinForm, and its namespace is BarcodeLib.Barcode.Linear
    5. If no component found, click Browse... button and select BarcodeLib.Barcode.dll file.
  3. Now you can see the component displayed on Toolbox. You can drag LinearWinForm on your form, change barcode setting through properties widnow.
  1. Add Reference BarcodeLib.Barcode.dll to your .NET project (ASP.NET website, Forms, any .NET project)
    In your .NET class.
    BarcodeLib.Barcode.Linear.Linear barcode = BarcodeLib.Barcode.Linear.Linear();
    barcode.Data = "your barcode data";
    // other barcode settings.
                            
    // save barcode image into your system
    barcode.drawBarcode("c:/barcode.gif");
Above code written in C# 2005

* Please set properties UOB and Resolution, before you set any image size related properties like barWidth, margin.
In Windows Controller, just call method SaveAsImage(string filename). e.g. SaveAsImage("C:\barcode.gif");
  • Set the Type property to BarcodeType.UPCA, or BarcodeType.UPCA_2, or BarcodeType.UPCA_5
  • Set the Data property with the value to encode. Type is string.
    User should only provide 11 digits, and DO NOT include last digit checksum character.
  • Set the SData property with the supplement value to encode. Type is string.
    User should only provide 2 digits for UPCA_2, and provide only 5 digits for UPCA_5.
  • Setting up barcode image size:
    • Set property UOM (Unit of Measure) for properties BarWidth, BarHeight, LeftMargin and TopMargin.
      Default is UnitOfMeasure.Pixel (0). Valid values are UnitOfMeasure.Pixel (0), UnitOfMeasure.CM (1), UnitOfMeasure.Inch (2).
    • Set the BarWidth (for bar cell width) and BarHeight (for bar cell height) properties. Both types are float.
    • Set the LeftMargin and TopMargin properties, and types are both float.
    • Set the Resolution property (Value is expressed in DPI - Dots per inch). This property is not working in Windows Controller, we will use end user's windows resultion.
  • Setting up text style in barcode image:
    • Set the ShowText properties. If this value is true, barcode data will be displayed with the barcode.
    • Set the TextFont property. The font used to display text in barcode image.
  • Set the Format property for barcode image type. Value can be "gif", "jpg", "png", and "bmp", default is "png".
  • Set BearerBars property, if you want to draw borders around barcode image. Value can be BearerBar.None (no bear bars), BearerBar.Frame (top, bottom, left, right borders drawn), BearerBar.TopBottom (only top, bottom's are drawn).
  • Set Rotate property, if you want to rotate barcode image.
    Value can be
    0 (RotateOrientation.BottomFacingDown),
    1 (RotateOrientation.BottomFacingLeft),
    2 (RotateOrientation.BottomFacingUp),
    3 (RotateOrientation.BottomFacingRight)
  • AddCheckSum property is not applied here. Barcode Library will always add a check character in the last digit (modulo 10).






   Copyright 2009 BarcodeLib.com. Provides High Quality .NET Barcode, Barcode .NET, C# Barcode, ASP.NET Barcode, VB.NET Barcode Components. All rights reserved.