private void ContentStreamCallbackHandler(IAsyncResult result)
{
MimePartContext context = (MimePartContext)result.AsyncState;
context._outputStream = context._writer.EndGetContentStream(result);
context._writer = new MimeWriter(context._outputStream, ContentType.Boundary);
if (context._partsEnumerator.MoveNext())
{
MimeBasePart part = (MimeBasePart)context._partsEnumerator.Current;
_mimePartSentCallback = new AsyncCallback(MimePartSentCallback);
IAsyncResult sendResult = part.BeginSend(context._writer, _mimePartSentCallback, _allowUnicode, context);
if (sendResult.CompletedSynchronously)
{
MimePartSentCallbackHandler(sendResult);
}
return;
}
else
{
IAsyncResult closeResult = ((MimeWriter)context._writer).BeginClose(new AsyncCallback(MimeWriterCloseCallback), context);
if (closeResult.CompletedSynchronously)
{
MimeWriterCloseCallbackHandler(closeResult);
}
}
}
private void MimePartSentCallbackHandler(IAsyncResult result)
{
MimePartContext context = (MimePartContext)result.AsyncState;
MimeBasePart part = (MimeBasePart)context._partsEnumerator.Current;
part.EndSend(result);
if (context._partsEnumerator.MoveNext())
{
part = (MimeBasePart)context._partsEnumerator.Current;
IAsyncResult sendResult = part.BeginSend(context._writer, _mimePartSentCallback, _allowUnicode, context);
if (sendResult.CompletedSynchronously)
{
MimePartSentCallbackHandler(sendResult);
}
return;
}
else
{
IAsyncResult closeResult = ((MimeWriter)context._writer).BeginClose(new AsyncCallback(MimeWriterCloseCallback), context);
if (closeResult.CompletedSynchronously)
{
MimeWriterCloseCallbackHandler(closeResult);
}
}
}