System.IO.Compression.ZipStorer.Close C# (CSharp) Méthode

        public void Close()
        {
            if (this.Access != FileAccess.Read)
            {
                uint centralOffset = (uint)this.ZipFileStream.Position;
                uint centralSize = 0;

                if (this.CentralDirImage != null)
                    this.ZipFileStream.Write(CentralDirImage, 0, CentralDirImage.Length);

                for (int i = 0; i < Files.Count; i++)
                {
                    long pos = this.ZipFileStream.Position;
                    this.WriteCentralDirRecord(Files[i]);
                    centralSize += (uint)(this.ZipFileStream.Position - pos);
                }

                if (this.CentralDirImage != null)
                    this.WriteEndRecord(centralSize + (uint)CentralDirImage.Length, centralOffset);
                else
                    this.WriteEndRecord(centralSize, centralOffset);
            }

            if (this.ZipFileStream != null)
            {
                this.ZipFileStream.Flush();
                this.ZipFileStream.Dispose();
                this.ZipFileStream = null;
            }
        }

        /// <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>
        /// <param name="_leaveOpen">true to leave the stream open after the ZipStorer object is disposed; otherwise, false (default).</param>
        /// <returns>A valid ZipStorer object</returns>
        public static ZipStorer Open(Stream _stream, FileAccess _access, bool _leaveOpen = false)
        {
            if (!_stream.CanSeek && _access != FileAccess.Read)
            {
                throw new InvalidOperationException("Stream cannot seek");
            }

            ZipStorer zip = new ZipStorer()
            {
                ZipFileStream = _stream,
                Access        = _access,
                leaveOpen     = _leaveOpen
            };

            if (zip.ReadFileInfo())
            {
                return(zip);
            }

            if (!_leaveOpen)
            {
                zip.Close();
            }

            throw new System.IO.InvalidDataException();
        }