The sample source codes on this page shows how to generate barcodes from excel in VB.NET. ByteScout Barcode SDK is the robost SDK that generates high quality barcode images and pdf. Can generate all popular types of barcodes from QR Code, Code 39, Code 128, UPC, GS1, GS-128, PDF417, Datamatrix to more exotic barcode types. Fully customizable fonts, colors, print sizes. Includes special functions to ensure output quality, and tools for adding barcodes to new or existing pdf files and images and you can use it to generate barcodes from excel with VB.NET.
The SDK samples like this one below explain how to quickly make your application do generate barcodes from excel in VB.NET with the help of ByteScout Barcode SDK. This VB.NET sample code is all you need for your app. Just copy and paste the code, add references (if needs to) and you are all set! You can use these VB.NET sample examples in one or many applications.
Trial version of ByteScout Barcode SDK can be downloaded for free from our website. It also includes source code samples for VB.NET and other programming languages.
Imports Bytescout.BarCode Imports System.Data.OleDb Module Module1 Sub Main() Dim barcode As Barcode = New Barcode() barcode.Symbology = SymbologyType.Code128 Dim connection As New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=Book1.xlsx;Extended Properties='Excel 8.0;HDR=Yes'") connection.Open() Dim command As OleDbCommand = connection.CreateCommand() command.CommandText = "SELECT * FROM [Sheet1$]" Dim dataReader As OleDbDataReader = command.ExecuteReader() Dim i As Integer While dataReader.Read() barcode.Value = Convert.ToString(dataReader.GetValue(0)) barcode.SaveImage(barcode.Value & ".png") i = i + 1 End While dataReader.Dispose() connection.Dispose() barcode.Dispose() End Sub End Module