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Updated on 2025-03-07

C# Method of decompressing data files using DeflateStream

This article describes the method of decompressing data files using DeflateStream in C#. Share it for your reference. The specific analysis is as follows:

The DeflateStream method is used to read data from one stream and write to another stream. DeflateStream does not write data to other types of resources, such as files or memory. When DeflateStream writes to another stream, it compresses and decompresses the data.

General process of compressing data files using DEFLATE:

Open an existing file
Open/create the output file
Create a reduced object
Read the source file byte byte and pass it to the DEFLATE object
Write output file stream using deflate object

String sourcefilename = FILETOBEUNCOMPRESSED;
Filestream sourcefile = (sourcefilename);
Filestream destinationfile = (outputfilename);
DeflateStream compressionstream = new DeflateStream(sourcefile,);
int sourcebyte = ();
while(sourcebyte != -1)
{
  ((byte)sourcebyte);
  sourcebyte = ();
}

I hope this article will be helpful to everyone's C# programming.