How to scan, read barcodes using C# in ASP.NET framework, MVC web applications?

KA Barcode Reader for C# Library

How to read barcodes in C# ASP.NET framework, MVC, web apps?

Using barcode reader library to scan, read 1D and 2D Barcode Images in C# for ASP.NET Framework 4.x web Application

Barcode Reader for C#.NET > How to read barcodes in C#? > Read barcodes in C# ASP.NET Core? > Scan, read, recognize barcode image in ASP.NET

Easy to scan, read 20+ linear and 2d barcode from images using C# in ASP.NET Framework 4.x, 3.x, 2.x, Razor pages, MVC, Blazor, ASP.NET web service, web applications
Support reading barcode images from camera, database, network in ASP.NET web apps
Quick to read, parse barcode with GS1 data message, Unicode text, byte array data in ASP.NET websites and applications
Advancing barcode read, scan options, such as image regions scanning, rotated barcodes, multiple/bulk barcodes reading, imperfect image scanning

How to read barcodes using C# in a ASP.NET framework web application?

ASP.NET offers three frameworks for creating web applications: Web Forms, ASP.NET MVC, and ASP.NET Web Pages. All three frameworks are stable and mature, and here we will create a new ASP.NET Web Forms application as an example.

The guide in this page will show you how to create a new ASP.NET framework (4.x) web application, integrate barcode image scanning and reading functions in the online web browser using C# coding.

Create a new ASP.NET framework (4.x) web application
Install C# barcode reader library
Add C# code to support online barcode reader function in web browser
Run the web application from IIS

Creating ASP.NET Razor Site in Visual Studio

To create an ASP.NET Razor website in Visual Studio:

Open Visual Studio 2022

In "Create a new project" window, select ASP.NET Web Application (.NET Framework) as project template

Key in project name as KeepAutomation.BarcodeReader.ASPNETFrameworkWebAppDemo. Click Create.

In the "Create a new ASP.NET Web Application" window, choose Web Forms. Click Create.

Your new ASP.NET project exists and we will add C# barcode reader library dll to it and add C# source code to integrate barcode reading function in ASP.NET Web app.

Add C# barcode reader library dll to ASP.NET web app

Here we will add KeepAutomation C# barcode reader dll library to the new ASP.NET web application.

In "Solution Explorer", right click "References", and choose menu "Add Reference..."

Click button "Browse...", and select file KeepAutomation.BarcodeReader.dll from downloaded package Dll/net40/

Click button "OK". Now you can find the barcode reader library has been added to the ASP.NET web application.

Add C# source code to read barcodes in the ASP.NET web app

It is easy to read barcodes in the ASP.NET framework web application.

Call method BarcodeReader.readBarcodeMessage() with barcode image file path and target barcode types. The method will return all target barcodes data from the barcode image file.

String inputImageFile = @"D:\sample.png";

//  Read QRCode from an image file.
String[] msgs = BarcodeReader.readBarcodeMessage(inputImageFile, BarcodeType.QRCode);