CompressionRatio of files in tar.gz archive

Hi

 How to get the compression ratio of items or files in tar.gz archive. I could do it for zip archive using QuickZipItem class's CompressionRatio Property.

 Thank You
mkarthik415Asked:
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Göran AnderssonCommented:
You don't.

As the files are not compressed individually, as in a zip archive, there is no meta information about how much space each file takes up in the compressed file.

Even if you could determine how much space each file takes up, it's not really accurate as the compression depends on the previous files in the tar ball.
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mkarthik415Author Commented:
Hi

Thank you for the response. Is it possible to find compression ratio of gzip file (i mean entire gzip file, not the items in it) using Xceed libraries?

Thank You
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Göran AnderssonCommented:
I don't know if that library has that capacity (and a quick look didn't reveal anything), but the gzip file does contain that information. It would be possible to extract that information even without a library.
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