Microsoft .NET built-in support for standards-compliant Deflate algorithm (compress and decompress).
DeflateStream is a Microsoft .NET Class that provides standards-compliant support for the "DEFLATE" compression algorithm.
Questions tagged [deflatestream]
78 questions
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Efficient way to store the DeflateStream result to `byte[]`?
I am reading the varbinary(MAX) from the SQL server table into the byte[] content variable. Then the DeflateStream is used to unpack the content. The final goal is to assign the unpacked content to another byte[] array, and then store it into the…
pepr
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DeflateStream repeats bytes when decompressing data
I have encountered a problem with DeflateStream -- some of the data is being written repeatedly, to the end.
Here is the code:
Dim bytesin As Byte() = ... ' An array of compressed bytes
Dim bytesout As Byte()
Dim count As Integer
Using ms As New…
Velcro
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Any way to replicate the .Net Core DeflateStream.Flush() behaviour in .Net Framework?
Background
I want to use StreamJsonRpc as a replacement for WCF in a future .Net Core port of an application. Before porting the code to .Net Core, I want to update the existing code (which is .Net Framework 4.8) to use StreamJsonRpc.
Because the…
Matthew Watson
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Decompress SQL Blob Content and return the answer in PushStreamContent .NET Core
I am developing a new API in a .NET Core service, the new API is supposed to read a BLOB from SQL table, decompress it using DeflateStream. And then return it (stream it) to the client.
In order not to consume much memory. I am returning a response…
user3299116
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How to upload a DB backup to a FTP server
On the tail end of database backup project and I've run into a issue where the Deflate compression I put in can't seem to find the path I saved the backup to. Being that the default backup location (used here) is on a network drive is there…
Red Rabbit
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C# DeflateStream.Read() giving an InvalidDataException
I want to unzip a compressed string so that the string of characters would become usable.
I successfully extract in an array of bytes the content of a downloaded file with the function WebClient.DownloadData(String).
The characters are logically…
Gaël
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.NET Deflate Stream Error/Bug
Has anyone experienced the following error while using the .NET Deflate Stream?
System.IndexOutOfRangeException: Index was outside the bounds of the array.
at System.IO.Compression.HuffmanTree.CreateTable()
at…
user113476
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Decompress a stream of bytes using deflatestream
I have a server and a client connecting using TCP socket. At the client (which is written in C++) I compress a string (str) using the zlib library:
uLongf compressedStringLength = compressBound(str.length());
Bytef* compressedString = new…
user382704
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DeflateStream advancing underlying stream to end
I'm trying to read out git objects from a git pack file, following the format for pack files laid out here. Once I hit the compressed data I'm running into issues. I'm trying to use System.IO.Compression.DeflateStream to decompress the zlib…
ameer
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how to both Compress and Minify content together?
i know we can compress response by declaring Response.Filter as GZip or Delfalte streams, but how i can perform both compression and minification together? declaring new class that inherits Stream, then first performing minify on content, then…
Sadegh
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DeflateStream.ReadAsync (.NET 4.5 System.IO.Compression) has different return value of bytes read than equivalent Read method?
While converting some older code to use async in c#, I started seeing problems in variations of return values from the Read() and ReadAsync() methods of the DeflateStream.
I thought that the transition from synchronous code like
bytesRead =…
NightCoder
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How does DeFlateStream.read redirect to System.Net.ConnectStream.Read?
In the process of debugging a code and it appears to me that DeFlateStream.read redirects to System.Net.ConnectStream.Read? When I check MSDN source code I couldn't easily find this redirection. Anyone could help me find how this occurs? thanks!
Jason
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Get all uncompressed bytes from a compressed file
I've created a method for returning all the uncompressed bytes from a compressed file.
public static byte[] GetAllBytesFromCompressedFile(string fullPath)
{
const int blockSize = 10000;
byte[] block = new byte[blockSize];
…
Arve Hansen
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Do an HTTP Post in .NET (Vb) with compressed data using deflatestream
The data that I am posting from a VB.Net client is large and I want to compress.
I want to do a "POST" and the apache server supports mod_deflate.
I am trying to integrate DeflateStream into my post code, however does not seem to be working.
I can…
Brian
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Decompress bytes using DeflateStream
I'm trying to decompress a byte array. Because I want to extract a .png file from a zip.
I tried this:
var compressedData = ZlibStream.UncompressBuffer(cByteArray);
var uncompressedData = ZlibStream.CompressBuffer(compressedData); …
user2911090
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