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Didn't try it myself, but it has mostly 5 star reviews<br />
<br />
<a href="https://www.codeproject.com/Articles/1250071/QR-Code-Encoder-and-Decoder-NET-Class-Library-Writ" rel="ugc">https://www.codeproject.com/Articles/1250071/QR-Code-Encoder-and-Decoder-NET-Class-Library-Writ</a>
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I have used the free ZXing library. Check <a href="https://www.emoreau.com/Entries/Articles/2018/09/Generate-and-consume-QR-codes-in-Net-applications.aspx" rel="ugc">https://www.emoreau.com/Entries/Articles/2018/09/Generate-and-consume-QR-codes-in-Net-applications.aspx</a>
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COG Lead Engineer

Shaun Vermaak

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hi want to decode QRCode <br />
from file<br />
using asp.net ...<br />
please help
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hi want to decode QRCode 
from file
using asp.net ...
please help

Didn&#39;t try it myself, but it has mostly 5 star reviews

https://www.codeproject.com/Articles/1250071/QR-Code-Encoder-and-Decoder-NET-Class-Library-Writ

I have used the free ZXing library. Check https://www.emoreau.com/Entries/Articles/2018/09/Generate-and-consume-QR-codes-in-Net-applications.aspx

how to decode QRCode from file using asp.net

The successor to Active Server Pages, ASP.NET websites utilize the .NET framework to produce dynamic, data and content-driven web applications and services. ASP.NET code can be written using any .NET supported language. As of 2009, ASP.NET can also apply the Model-View-Controller (MVC) pattern to web applications

ASP.NET

Active Server Pages (ASP) is Microsoft’s first server-side engine for dynamic web pages. ASP’s support of the Component Object Model (COM) enables it to access and use compiled libraries such as DLLs. It has been superseded by ASP.NET, but will be supported by Internet Information Services (IIS) through at least 2022.

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).