Reading barcodes and QR codes on the server side is a common requirement for document processing, inventory systems, and logistics applications. With the Dynamsoft Barcode Reader SDK and ASP.NET MVC 5 on .NET Framework 4.8, you can add accurate, multi-format barcode decoding to a web application in a few focused steps. The SDK's CaptureVisionRouter API handles the heavy lifting on the backend, while a lightweight JavaScript frontend previews the image and draws color-coded overlays over every detected code. What you'll build: A responsive ASP.NET MVC 5 web application that accepts an uploaded image, decodes all barcodes and QR codes server-side using the Dynamsoft Barcode Reader SDK 11.4, and renders canvas overlays with format and text results in the browser. .NET Framework 4.8 Developer Pack Visual Studio 2019 or later with the ASP.NET and web development workload NuGet CLI or the Visual Studio NuGet Package Manager A Dynamsoft Barcode Reader license key Get a 30-day free trial license Add the Dynamsoft.DotNet.BarcodeReader.Bundle NuGet package to the project. The bundle ships with native binaries for both x64 and x86 Windows, which are automatically copied to the output directory via the included MSBuild targets file. Restore packages from the command line before the first build: nuget restore MvcBarcodeQRCodeFramework.csproj -PackagesDirectory packages The barcode upload endpoint uses MVC attribute routing ([Route("upload")]). Enable it in RouteConfig.cs before the conventional route: public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); // Enable attribute routing so [Route("upload")] works in FileController routes.MapMvcAttributeRoutes(); routes.MapRoute( name: "Default", url: "{controller}/{action}/{id}", defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional } ); } FileController accepts a multipart/form-data POST, saves each uploaded file to ~/App_Data/uploads/, initializes the license once per request, then calls CaptureVisionRouter.Capture() for each file. The decoded results — text, format string, and four-corner location — are serialized to JSON and returned to the browser. using Dynamsoft.DBR; using Dynamsoft.License; using Dynamsoft.CVR; using Dynamsoft.Core; public class FileController : Controller { [HttpPost] [Route("upload")] public ActionResult Upload() { var files = Request.Files; var uploadPath = Server.MapPath("~/App_Data/uploads"); if (!Directory.Exists(uploadPath)) Directory.CreateDirectory(uploadPath); string errorMsg; int errorCode = LicenseManager.InitLicense( "LICENSE-KEY", out errorMsg); if (errorCode != (int)EnumErrorCode.EC_OK && errorCode != (int)EnumErrorCode.EC_LICENSE_CACHE_USED) { return Json(new { error = "License error: " + errorMsg }); } var barcodes = new List

Menu

#Cc5de8

Decode Barcodes and QR Codes from Uploaded Images in ASP.NET MVC 5