In ASP.NET MVC, downloading multiple files simultaneously requires bundling them into a single archive, such as a , because a single HTTP request can only return one response.
The ZipArchive class is part of the .NET Framework (4.5+) and .NET Core, allowing you to create archives in memory without writing temporary files to the server's disk. 1. Controller Action Implementation In ASP
This action retrieves files (e.g., from a database or local directory), adds them to a memory stream, and returns a FileResult . Create Zip File with multiple files C# - Stack Overflow from a database or local directory)
This guide explores two primary methods for zipping files: using the built-in namespace (recommended for modern apps) and the DotNetZip library (useful for legacy Framework support or advanced encryption). Method 1: Using Built-in System.IO.Compression (Standard) adds them to a memory stream
