How to Read Barcode in C#

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Aimen Fatima Feb 15, 2024
Csharp Csharp Barcode
How to Read Barcode in C#

This tutorial explains how to read a barcode from any source. It presents a complete program to create a barcode reader in C# using a third-party package.

Read Barcode in C#

You can write a program to read barcode images in C# using a third-party assembly package, i.e., Aspose.BarCode. This package can be downloaded in your visual studio project from NuGet.org.

To read the barcodes, you first need to import the Aspose.BarCode.BarCodeRecognition namespace. Next, create an object of the BarCodeReader class and use the ReadBarCodes() method.

The benefit of using the Aspose.BarCode is to write very few lines of code to accomplish your desired output. Let’s create a C# project to demonstrate the barcode reader in C#.

  • Create a C# console application in Visual Studio.

  • Select Manage NuGet Packages in the Project Tab

  • Browse for the Aspose.Barcode package from NuGet.org and install it.

    Download and Install Aspose_Barcode Package from NuGet_org

    Now, you can import the Aspose.BarCode.BarCodeRecognition namespace in any portion of your code to utilize the Barcode scanning functionalities.

  • Copy the following code snippet to your program.cs file
    using System;
using Aspose.BarCode;
using System.Drawing;
using Aspose.BarCode.BarCodeRecognition;

namespace BarcodeScanner {
  class Program {
    static void Main(string[] args) {
      try {
        // File Exits in the project directory
        using (BarCodeReader barCodeReader = new BarCodeReader("barcode.png")) {
          foreach (BarCodeResult output in barCodeReader.ReadBarCodes()) {
            // Read the barcode
            Console.WriteLine("Symbology Type: " + output.CodeType);
            Console.WriteLine("CodeText: " + output.CodeText);
          }
        }
      } catch (Exception ex) {
        Console.WriteLine(ex.Message);
      }
    }
  }
}

    This code will read the input image from the project directory. The foreach loop in the code reads the output from multiple barcodes in an image.

    TheBarCodeReader class has overloaded constructors to support different types of inputs, e.g., BitmapImage, Image, file name, etc. We have used the constructor that takes the file name as input.

Assume barcode.png has the following Barcode.

Barcode

Output:

Output for Barcode Reader

Note that the Apose Barcode Reader is a paid tool requiring a license to use unrestricted functionalities.