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.NET GS1-128/EAN-128 Barcode Introduction
GS1-128 / EAN-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.
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'.
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'.
GS1-128/EAN-128 Encoding Data Scope
UCC/EAN 128 Barcode for .NET, ASP.NET supports:
all 128 characters of ASCII
How to Generate GS1-128/EAN-128 Barcode Image in IIS without Visual Studio .NET?
Under downloaded trial package, copy barcode folder to your IIS folder, e.g. C:\Inetpub.
Create a new virtual directory in IIS, named barcode, and link to the above "barcode" folder.
Restart IIS.
To test your installation, open your web browser and navigate to: http://YourDomain:port/barcode/linear.aspx?Type=10&Data=(21)CH(100)12345777AI(21)12345678
To create barcode image in your aspx or html page, you need pass the url to IMG tag src value. For example: <img src="http://YourDomain:port/barcode/linear.aspx?Type=10&Data=(21)CH(100)12345777AI(21)12345678"/> Using this method, it will not generate any barcode images in your IIS server side.
How to Generate GS1-128/EAN-128 Barcode Image through ASP.NET Web Form Control?
Install .NET Barcode Controller to your ASP.NET project.
Add Reference BarcodeLib.Barcode.ASP.NET.dll to your project. Do not copy the dll to the bin directory, Visual Studio will do so, during project compilation time.
Add barcode library to your Visual Studio Toolbox.
Open Toolbox in Visual Studio. Click menu View, and check submenu Toolbox.
Right click Toolbox, click menu Choose Items...
Goto .NET Framework Components tab.
If no BarcodeLib component found, click Browse... button and select BarcodeLib.Barcode.ASP.NET.dll file.
Then sort "Namespace" column, you will find 4 components from BarcodeLib.Barcode.
Check component LinearASPNET, and its namespace is BarcodeLib.Barcode.
Click "OK" button, you will find four components under "General": LinearASPNET.
Go to "barcode" folder in the trial package, copy file "linear.aspx" to the same folder as your aspx page, which will generate barcodes.
You can drag LinearASPNET on your aspx page in design view, change barcode setting through properties window.
Run the project, you will find barcode images generated in your aspx pages.
How to Generate GS1-128/EAN-128 through .NET Windows Form Control in C# or VB.NET?
Add Reference BarcodeLib.Barcode.WinFroms.dll to your project. Do not copy the dll to the bin directory, Visual Studio will do so, during project compilation time.
In your .NET windows project, right click mouse over Refereces in your Solution Explorer window. Then click menu "Add Reference ...".
Add BarcodeLib.Barcode.WinFroms.dll to your project.
Add barcode library to your Visual Studio Toolbox.
Open Toolbox in Visual Studio. Click menu View, and check submenu Toolbox.
Right click Toolbox, click menu Choose Items...
Goto .NET Framework Components tab.
If no BarcodeLib component found, click Browse... button and select BarcodeLib.Barcode.WinFroms.dll file.
Then sort "Namespace" column, you will find 4 components from BarcodeLib.Barcode.
Check component LinearWinForm, and its namespace is BarcodeLib.Barcode.
Click "OK" button, you will find the control under "Common Controls": LinearWinForm.
Now you can see the component displayed on Toolbox. You can drag LinearWinForm on your form, change barcode setting through properties widnow.
How to Generate GS1-128/EAN-128 Barcode Image in .NET class?
Add Reference BarcodeLib.Barcode.ASP.NET.dll or BarcodeLib.Barcode.WinFroms.dll to your .NET project (ASP.NET website, Forms, any .NET project). In your .NET class:
// generate barcode and output to Bitmap object Bitmap barcodeInBitmap = barcode.drawBarcode();
// generate barcode and output to HttpResponse object HttpResponse response = ...; barcode.drawBarcode(response);
// generate barcode and output to Stream object Stream stream = ...; barcode.drawBarcode(stream);
Above code written in C# 2005
How to Save GS1-128/EAN-128 Barcode Image using .NET Barcode Generator Windows Control?
In Windows Controller, just call method SaveAsImage(string filename). e.g. SaveAsImage("C:\barcode.gif");
GS1-128/EAN-128 Barcode Property Settings
Set the Type property to BarcodeType.EAN128. Web Stream URL Parameter: Type. Value: 10. Sample: &Type=10.
Set the Data property with the value to encode. Type is string. Web Stream URL Parameter: Data. Sample: &Data=AI(21)d12345777AI(21)12345678.
Valid Data Scope:
all 128 characters of ASCII
Sample: "AI(21)d12345777AI(21)12345678"
About AI (Application Identifiers) In Barcode Library, you can use AI(dddd) format to encode AI code. For example, to encode AI code 21 with value d12345777,and AI code 21 with value 12345678, you should set barcode.Data = "AI(21)d12345777AI(21)12345678".
About ASCII Data Encoding In Barcode Library, you can use CH(ddd) format to encode any ASCII data (from ASCII value 0 to 127). For example CH(100) = d.So for the above sample EAN-128 data, you can also set Data property = "AI(21)CH(100)12345777AI(21)12345678". Or, you may set the ProcessTilde to true, if you want use the tilde character "~" to specify special characters in Code 128 input data. Default is false.
~1: is used to represent the FNC1 code.
~NNN: is used to represent the ASCII character with the value of NNN.
Web Stream URL Parameter: ProcessTilde. Valid values are: "true", or "false".
AddCheckSum property is not applied.
Barcode Size Settings.
Set property UOM (Unit of Measure) for properties BarWidth, BarHeight, LeftMargin and TopMargin. Valid values are UnitOfMeasure.Pixel (0), UnitOfMeasure.CM (1), UnitOfMeasure.Inch (2). Default is UnitOfMeasure.Pixel (0). Web Stream URL Parameter: UOM. Valid values are: 0, 1, 2.
Set the ImageWidth and ImageHeight properties. Both types are float. BarWidth default is 0 pixel. BarHeight default is 0 pixel. Web Stream URL Parameter: ImageWidth and ImageHeight.
Set the BarWidth (for bar cell width) and BarHeight (for bar cell height) properties. Both types are float. BarWidth default is 1 pixel. BarHeight default is 80 pixel. Web Stream URL Parameter: BarWidth and BarHeight.
Set the LeftMargin, RightMargin, TopMargin and BottomMargin properties. Types are all float. Default are 10. Web Stream URL Parameter: LeftMargin, RightMargin, TopMargin, BottomMargin.
Set the ResizeImage property to "true" and our component will resize the barcode image if manual setting is invalid. Type is bool. Default is false. Web Stream URL Parameter: ResizeImage.
Set the Resolution property (Value is expressed in DPI - Dots per inch). Type is int. Default is 96 dpi. Web Stream URL Parameter: Resolution.
Setting up text style in barcode image.
Set the ShowText properties. If ShowText is True, barcode data will be displayed with the barcode. Type is bool.Default is True. Web Stream URL Parameter: ShowText. Valid values are: "true", and "false".
Set the TextFont property. The font used to display text in barcode image. Type is System.Drawing.Font. Default is new Font("Arial", 9f, FontStyle.Regular). Web Stream URL Parameter: TextFont. Value format: [font name]|[font size]|[font style]. Sample Values: "Arial|12|Bold,Underline".
Set Color Related properties.
Set the BackgroundColor property. Barcode background color can be changed. Type is System.Drawing.Color.Default is BackgroundColor = Color.White. Web Stream URL Parameter: BackgroundColor.
Set the BarColor property. Barcode bars color can be changed. Type is System.Drawing.Color.Default is BarColor = Color.Black. Web Stream URL Parameter: BarColor.
Set the TextFontColor property. Barcode human-readable data text color can be changed Type is System.Drawing.Color.Default is TextFontColor = Color.Black. Web Stream URL Parameter: TextFontColor.
Set the ImageFormat property for barcode image type.
Type is System.Drawing.Imaging.ImageFormat. Default value is ImageFormat.Png. Web Stream URL Parameter: ImageFormat. Valid values are: gif, jpeg, png, bmp, tiff.
Set Rotate property, if you want to rotate barcode image. Valid values are as below. Default Value is 0 (RotateOrientation.BottomFacingDown). Web Stream URL Parameter: Rotate. Valid values are: 0, 1, 2, 3.
CH(100)12345777AI(21)12345678.gif)
