Invalid EndOfStream c# gzip

M.ROSSIGNOLI

if i try to read a gzip file with GZipStream on c# like this

string filePath = "....gz";

int count = 0;

using (FileStream reader = File.OpenRead(filePath))

using (var zip = new GZipStream(reader, CompressionMode.Decompress))

using (StreamReader unzip = new StreamReader(zip))

{

while (!unzip.EndOfStream)

{

var data = unzip.ReadLine();

count++;

}

}

Console.WriteLine(count);

i get less row than read decompressed csv file(decompress with Windows shell)

filePath = "...csv";

count = 0;

using (FileStream reader = File.OpenRead(filePath))

using (StreamReader unzip = new StreamReader(reader))

{

while (!unzip.EndOfStream)

{

var data = unzip.ReadLine();

count++;

}

}

Console.WriteLine(count);

The sample are in https://developers.thomsonreuters.com/elektron-data-solutions/datascope-select-rest-api/downloads

Any ideas, the Size and Packed size on gz archive is strange, Packed size are bigger than decompressed Size(on winrar ui)

M.ROSSIGNOLI

I found a workaround for now, with ICSharpCode.SharpZipLib.GZip.GZipInputStream( https://github.com/icsharpcode/SharpZipLib) libs i read all lines, so the problem seems to be .net built-in GZipStream(or malformed files from trth).