Using Barcode Reader In VB.NET

Submitted by: 
Visitors have accessed this post 20345 times.

This project was converted from C#, it is a Serial Barcode Reader Application that will check to see if a COM Port exists. It will

Open the Port, Read data, and Close the Port when it is done.

Then a Delegate is used to write to a UI control from a non-UI thread.

If an error occurs, it will automatically write the error to a log file. If the log file directory doesn't exist, it will create

one and write to it.

It is a working application and has been fully tested.

It was built on Visual Studio 2010 SP1 with .NET 4.

If you are using an earlier version of Visual Studio, you can easily downgrade it with no loss of functionality.

Note: Due to the size or complexity of this submission, the author has submitted it as a .zip file to shorten your download time. After downloading it, you will need a program like Winzip to decompress it.

Virus note: All files are scanned once-a-day by for viruses, but new viruses come out every day, so no prevention program can catch 100% of them.


1. Re-scan downloaded files using your personal virus checker before using it.
2. NEVER, EVER run compiled files (.exe's, .ocx's, .dll's etc.)--only run source code.


I saw a NET. barcode reader, which also goes for VB.NET and ASP.NET. Check it out if you are interested.

However source code running successfully, but event not fired when i put break point in source code.

hey, check this article about how to scan barcode...

hi..i'm doing my thesis in title attendance management system using to scan the barcode? me..

Add new comment

Filtered HTML

  • Web page addresses and e-mail addresses turn into links automatically.
  • You may insert videos with [video:URL]
  • Allowed HTML tags: <a> <em> <strong> <cite> <blockquote> <code> <ul> <ol> <li> <dl> <dt> <dd> <table> <tr> <td> <th> <img> <h1> <h2> <h3> <iframe> [video]
  • You can enable syntax highlighting of source code with the following tags: <code>, <blockcode>, <asp>, <c>, <cpp>, <csharp>, <css>, <html4strict>, <java>, <javascript>, <mysql>, <php>, <python>, <sql>, <vb>, <vbnet>. The supported tag styles are: <foo>, [foo].
  • Lines and paragraphs break automatically.

Plain text

  • No HTML tags allowed.
  • Lines and paragraphs break automatically.
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.