In the fast-moving world of automated systems, we come across various scenarios which ask for completing tasks with minimal human interference. This not only decreases human efforts but also makes the process less error-prone. ComponentOne Studio controls not only allow you to deliver rich, responsive and effective applications but also facilitate automation. Let's move a step further towards automated applications and generate barocde through Command Prompt using ComponentOne BarCode for WinForms.

Generating Barcodes for Products in Bulk

The application will accept inputs such as the path of a text file containing data to be encoded and barcode encoding as command line parameters. With this capability, professional barcodes can be directly created by executing console application. Consider an example of generating barcodes for Product Names. The product names can be specified in a text file for the console application to create barcodes in bulk through:

  • A batch file
  • The MS-DOS command line prompt in Windows
  • Any application that can use the MS-DOS shell
  • Scripts that can be created to generate barcodes with a running number to tag products at item level


Users can also integrate this barcode generation process into their enterprise workflow processes.

Coding the Process

Firstly, the name of the text file containing the product name to be encoded will be retrieved using GetCommandLineArgs method. Further, the content of the file is loaded in a string variable.

Dim clArgs() As String = Environment.GetCommandLineArgs()  
FileName = clArgs(2).ToString()  
input = System.IO.File.ReadAllText(FileName)  

C1Barcode supports a variety of encoding types such as Code Bar, Code128, Code39, Code93, Ean13, Ean8 etc., which can be utilized to generate barcodes which will fit your needs.

Dim BarType As C1.Win.C1BarCode.CodeTypeEnum = DirectCast([Enum].Parse(GetType(C1.Win.C1BarCode.CodeTypeEnum), clArgs(1).ToString()), C1.Win.C1BarCode.CodeTypeEnum)  
bcode.CodeType = BarType

Lastly, the barcodes will be generated in PrintPage event of PrintDocument. In this event, Barcode Text and Image will be drawn on PrintDoucment using Text and Image properties of C1Barcode.

Private Sub _printPage(ByVal sender As Object, ByVal e As PrintPageEventArgs)  
Dim bartext As String = String.Empty  
Dim count As Integer = 1  
For Each bartext In TextsToEncode  
bcode.Text = bartext  

Dim rcPage As System.Drawing.RectangleF = New System.Drawing.RectangleF(e.MarginBounds.X, e.MarginBounds.Y * count, 100, 30)  
e.Graphics.DrawString(bartext, New System.Drawing.Font("ARIAL", 12.0F), Drawing.Brushes.Black, New System.Drawing.PointF(rcPage.X - 23, rcPage.Y - 20))  
e.Graphics.DrawImage(bcode.Image, rcPage)  
count = count + 1  
End Sub

To run this application through Command prompt, first browse to the application directory and execute following command.

Barcode_App.exe Code128 F:\\Products.txt
  • 'Barcode_App.exe' is the name of the application
  • 'Code128' is type of encoding
  • 'F:\Products.txt' is text file containing list of Product Names

And yes, this is not the end. Do Code! Do Automatic! :)


Barcode_App_VB Barcode_App_CS