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.NET GS1-128 (UCC/EAN 128) Generator for .NET, ASP.NET, C#, VB.NET



GS1-128 is also known as EAN-128, UCC-128, USS-128, GS1-128, UCC.EAN-128, GTIN-128, UCC-12, EAN/UCC-13, EAN/UCC-14


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1. EAN 128 Barcode Introduction
The UCC/EAN-128 Symbology is a subset of the more general Code 128 Symbology. UCC/EAN-128 was developed to provide a worldwide format and standard for exchanging common data between companies. While other bar codes simply encode data with no respect for what the data represents, UCC/EAN-128 encodes data and encodes what that data represents.

UCC/EAN-128 has a list of Application Identifiers (AI). The Application Identifier is a 2, 3, or 4-digit number that identifies the type of data which follows. By convention, the Application Identifier is enclosed in parentheses when printed below the barcode (the parentheses are only for visual clarity, and are not encoded in the barcode).


Sample of a UCC/EAN-128 Barcode

How to encode UCC/EAN-128 values using Barcode Library


Introduction
UCC/EAN 128 encodes the so called Element Strings which are composed of an Application Identifier (AI) plus a data field. Each AI identifies the meaning and format of the data following it. Note that the AI has parentheses around it in the human readable text, but the parentheses are not encoded in the barcode.

Encode AI Code
In Barcode Library, developer mush put AI(dddd) around AI code, for the above sample image, you must set Data property = 'AI(21)d12345777AI(21)12345678'.


Encode ASCII Data
In Barcode Library, you can use CH(ddd) format to encode ASCII data, for example CH(100) = d. So for the above sample image, you can also set Data property = 'AI(21)CH(100)12345777AI(21)12345678'.


 
2. EAN 128 Encoding Data Scope
UCC/EAN 128 Barcode for .NET, ASP.NET supports:
  • all 128 characters of ASCII


 
3. How to Generate EAN 128 Barcode Image in IIS without Visual Studio .NET?
  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=EAN128&Data=12345678
  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=EAN128&Data=12345678" />


 
4. How to Generate EAN 128 Barcode Image through Web Controller in ASP.NET?
  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.


 
5. How to Generate EAN 128 Barcode Image through Windows Controller in .NET?
  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.


 
6. How to Generate EAN 128 Barcode Image in .NET class?
  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.


 
7. How to Save EAN 128 Barcode Image?
In Windows Controller, just call method SaveAsImage(string filename). e.g. SaveAsImage("C:\barcode.gif");


 
8. EAN 128 Barcode Property Settings
  • Set the Type property to BarcodeType.EAN128
  • Set the Data property with the value to encode. Type is string.
  • 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.


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