C# Stream.Close方法代码示例

 public static void Convert(String htmlFilename, String mhtFilename)
 {
     var objMessage = new Message();
     objMessage.CreateMHTMLBody(htmlFilename);
     var strm = new Stream {Type = StreamTypeEnum.adTypeText, Charset = "US-ASCII"};
     strm.Open();
     IDataSource dsk = objMessage.DataSource;
     dsk.SaveToObject(strm, "_Stream");
     strm.SaveToFile(mhtFilename, SaveOptionsEnum.adSaveCreateOverWrite);
     strm.Close();
 }

        /// <summary>
        /// Add full contents of a stream into the Zip storage
        /// </summary>
        /// <param name="_method">Compression method</param>
        /// <param name="_filenameInZip">Filename and path as desired in Zip directory</param>
        /// <param name="_source">Stream object containing the data to store in Zip</param>
        /// <param name="_modTime">Modification time of the data to store</param>
        /// <param name="_comment">Comment for stored file</param>
        public void AddStream(Compression _method, string _filenameInZip, Stream _source, DateTime _modTime, string _comment)
        {
            if (Access == FileAccess.Read)
                 throw new InvalidOperationException("Writing is not alowed");

             long offset;
             if (this.Files.Count == 0)
                 offset = 0;
             else
             {
                 ZipFileEntry last = this.Files[this.Files.Count - 1];
                 offset = last.HeaderOffset + last.HeaderSize;
             }

             // Prepare the fileinfo
             ZipFileEntry zfe = new ZipFileEntry();
             zfe.Method = _method;
             zfe.EncodeUTF8 = this.EncodeUTF8;
             zfe.FilenameInZip = NormalizedFilename(_filenameInZip);
             zfe.Comment = (_comment == null ? "" : _comment);

             // Even though we write the header now, it will have to be rewritten, since we don't know compressed size or crc.
             zfe.Crc32 = 0;  // to be updated later
             zfe.HeaderOffset = (uint)this.ZipFileStream.Position;  // offset within file of the start of this local record
             zfe.ModifyTime = _modTime;

             // Write local header
             WriteLocalHeader(ref zfe);
             zfe.FileOffset = (uint)this.ZipFileStream.Position;

             // Write file to zip (store)
             Store(ref zfe, _source);
             _source.Close();

             this.UpdateCrcAndSizes(ref zfe);

             Files.Add(zfe);
        }

        private static Stream CopyToMemoryStream(Stream s) {
            var size = 100000; // large heap is more efficient
            var copyBuff = new byte[size];
            int len;
            var r = new MemoryStream();
            while((len = s.Read(copyBuff, 0, size)) > 0)
                r.Write(copyBuff, 0, len);

            r.Seek(0, SeekOrigin.Begin);
            s.Close();
            return r;
        }