System.Data.SqlClient.TdsParser.WriteXmlFeed C# (CSharp) Method

        private async Task WriteXmlFeed(XmlDataFeed feed, TdsParserStateObject stateObj, bool needBom, Encoding encoding, int size)
        {
            byte[] preambleToSkip = null;
            if (!needBom)
            {
                preambleToSkip = encoding.GetPreamble();
            }
            ConstrainedTextWriter writer = new ConstrainedTextWriter(new StreamWriter(new TdsOutputStream(this, stateObj, preambleToSkip), encoding), size);

            XmlWriterSettings writerSettings = new XmlWriterSettings();
            writerSettings.CloseOutput = false;		// don't close the memory stream
            writerSettings.ConformanceLevel = ConformanceLevel.Fragment;
            if (_asyncWrite)
            {
                writerSettings.Async = true;
            }
            XmlWriter ww = XmlWriter.Create(writer, writerSettings);

            if (feed._source.ReadState == ReadState.Initial)
            {
                feed._source.Read();
            }

            while (!feed._source.EOF && !writer.IsComplete)
            {
                // We are copying nodes from a reader to a writer.  This will cause the
                // XmlDeclaration to be emitted despite ConformanceLevel.Fragment above.
                // Therefore, we filter out the XmlDeclaration while copying.
                if (feed._source.NodeType == XmlNodeType.XmlDeclaration)
                {
                    feed._source.Read();
                    continue;
                }

                if (_asyncWrite)
                {
                    await ww.WriteNodeAsync(feed._source, true).ConfigureAwait(false);
                }
                else
                {
                    ww.WriteNode(feed._source, true);
                }
            }

            if (_asyncWrite)
            {
                await ww.FlushAsync().ConfigureAwait(false);
            }
            else
            {
                ww.Flush();
            }
        }