internal override IAsyncResult BeginSend(BaseWriter writer, AsyncCallback?callback, bool allowUnicode,
object?state)
{
_allowUnicode = allowUnicode;
PrepareHeaders(allowUnicode);
writer.WriteHeaders(Headers, allowUnicode);
MimePartAsyncResult result = new MimePartAsyncResult(this, state, callback);
MimePartContext context = new MimePartContext(writer, result, Parts.GetEnumerator());
IAsyncResult contentResult = writer.BeginGetContentStream(new AsyncCallback(ContentStreamCallback), context);
if (contentResult.CompletedSynchronously)
{
ContentStreamCallbackHandler(contentResult);
}
return(result);
}
internal override IAsyncResult BeginSend(BaseWriter writer, AsyncCallback callback, bool allowUnicode, object state)
{
PrepareHeaders(allowUnicode);
writer.WriteHeaders(Headers, allowUnicode);
MimePartAsyncResult result = new MimePartAsyncResult(this, state, callback);
MimePartContext context = new MimePartContext(writer, result);
ResetStream();
_streamUsedOnce = true;
IAsyncResult contentResult = writer.BeginGetContentStream(new AsyncCallback(ContentStreamCallback), context);
if (contentResult.CompletedSynchronously)
{
ContentStreamCallbackHandler(contentResult);
}
return(result);
}
internal override IAsyncResult BeginSend(BaseWriter writer, AsyncCallback callback, bool allowUnicode,
object state)
{
this.allowUnicode = allowUnicode;
PrepareHeaders(allowUnicode);
writer.WriteHeaders(Headers, allowUnicode);
MimePartAsyncResult result = new MimePartAsyncResult(this, state, callback);
MimePartContext context = new MimePartContext(writer, result, Parts.GetEnumerator());
IAsyncResult contentResult = writer.BeginGetContentStream(new AsyncCallback(ContentStreamCallback), context);
if (contentResult.CompletedSynchronously) {
ContentStreamCallbackHandler(contentResult);
}
return result;
}
