/// <summary>
/// Method to open an existing storage from stream
/// </summary>
/// <param name="stream">Already opened stream with zip contents</param>
/// <param name="access">File access mode for stream operations</param>
/// <returns>A valid ZipArchive object</returns>
public static ZipArchive Open(Stream stream, FileAccess access)
{
if (!stream.CanSeek && access != FileAccess.Read)
{
throw new InvalidOperationException("Stream cannot seek");
}
ZipArchive zip = new ZipArchive();
//zip.fileName = fileName;
zip.zipFileStream = stream;
zip.Access = access;
if (zip.ReadArchiveInfo())
{
return(zip);
}
throw new Exception("Open the stream error!");
//throw new System.IO.InvalidDataException();
}
