In web applications like ASP.NET MVC or Web API, a common requirement is to let users download multiple files as a single ZIP. DotNetZip allows you to do this dynamically without saving temporary files to the server's disk.
This example creates a ZIP on the fly and sends it directly to the user's browser. Downloading of zip file through ASP.NET MVC using DotNetZip dotnetzip c# download
The primary type in DotNetZip is ZipFile . It provides a simple API for adding files, folders, or streams into an archive: : Adds a specific file from the disk. AddDirectory() : Recursively adds an entire folder. Save() : Commits the archive to a file or a stream. 3. Implementing a "Download as Zip" Feature In web applications like ASP
To use the library, you must first add it to your project. The most common method is via the DotNetZip NuGet package . powershell Install-Package DotNetZip Use code with caution. Downloading of zip file through ASP
DotNetZip is a highly versatile, open-source library that simplifies zip file manipulation in the .NET ecosystem. While Microsoft provides built-in compression tools, many developers prefer the DotNetZip library for its advanced features like WinZip-compatible AES encryption , ZIP64 support, and streamlined stream handling.
This guide explores how to download multiple files and bundle them into a single ZIP archive using C# and DotNetZip.
