Downloading Multiple Files as a Zip File Using GridView and SharpZipLib

Abstract:
Downloading files becomes a painful procedure if you have to select each individual file manually to perform the download. In this article we are going to select multiple files and download all of them as a single zip file. 
Download SharpZipLib: 

SharpZipLib is a free .NET API which is used to perform zipping operations. We will use SharpZipLib to perform the file zip.

Displaying the Files on the GridView Control: 

We have created a folder in our application called "Files" which contains several text files. The first task is to display these files in the GridView control. The implementation is shown below: 


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