public Stream GetContentWriteStream()
{
this.AssertOpen();
if (this.contentWritten)
{
throw new InvalidOperationException(Strings.ContentAlreadyWritten);
}
if (this.partContent != null)
{
throw new InvalidOperationException(Strings.PartContentIsBeingWritten);
}
Stream rawContentWriteStream = this.GetRawContentWriteStream();
if (this.contentTransferEncoding == ContentTransferEncoding.SevenBit || this.contentTransferEncoding == ContentTransferEncoding.EightBit || this.contentTransferEncoding == ContentTransferEncoding.Binary)
{
return(rawContentWriteStream);
}
if (this.contentTransferEncoding == ContentTransferEncoding.BinHex)
{
throw new NotSupportedException(Strings.BinHexNotSupportedForThisMethod);
}
ByteEncoder byteEncoder = MimePart.CreateEncoder(null, this.contentTransferEncoding);
if (byteEncoder == null)
{
throw new NotSupportedException(Strings.UnrecognizedTransferEncodingUsed);
}
this.encodedPartContent = new EncoderStream(rawContentWriteStream, byteEncoder, EncoderStreamAccess.Write);
return(new SuppressCloseStream(this.encodedPartContent));
}
