System.Configuration.XmlUtil.ReleaseResources C# (CSharp) Method

        private void ReleaseResources() {
            if (_reader != null) {
                // closing _reader will also close underlying _stream
                _reader.Close();
                _reader = null;
            }
            else if (_stream != null) {
                _stream.Close();
            }

            _stream = null;

            if (_cachedStringWriter != null) {
                _cachedStringWriter.Close();
                _cachedStringWriter = null;
            }
        }