Extract one known file from a .tar.gz file

Thanks Mehdi for getting back.

I am currently using below code to search a particular file from the .tar.gz file but it is taking too much time to finish the search and my page getting timeout.

My main objective is to search a file in the .tar.gz file, if available then only extract else not.

Can you please guide me here on how I can fast the search in minimum time ?

Thanks in advance.

Regards, Surya

//Code

using (TarInputStream tarIn = new TarInputStream(new GZipInputStream(File.OpenRead(filename[0]))))
{
TarEntry theEntry;
while ((theEntry = tarIn.GetNextEntry()) != null)
{

if (theEntry.IsDirectory)
{
continue;
}
else
{

if (!string.IsNullOrEmpty(theEntry.Name) && !(theEntry.IsDirectory))
{

if (theEntry.Name.IndexOf(ZipFileName) > 0)
{
string strNewFile = @"" + OutputPath + @"\" + ZipFileName;
if (File.Exists(strNewFile))
{
continue;
}

using (FileStream streamWriter = File.Create(strNewFile))
{
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = tarIn.Read(data, 0, data.Length);
if (size > 0)
streamWriter.Write(data, 0, size);
else
break;
}
streamWriter.Close();
}
}
}
}

}
tarIn.Close();
}