How can I safely raise events in an AsyncCallback?
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by cyclotis04
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Published on 2010-05-27T06:15:48Z
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2010/05/27
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I'm writing a wrapper class around a TcpClient which raises an event when data arrives. I'm using BeginRead and EndRead, but when the parent form handles the event, it's not running on the UI thread. I do I need to use delegates and pass the context into the callback? I thought that callbacks were a way to avoid this...
void ReadCallback(IAsyncResult ar)
{
int length = _tcpClient.GetStream().EndRead(ar);
_stringBuilder.Append(ByteArrayToString(_buffer, length));
BeginRead();
OnStringArrival(EventArgs.Empty);
}
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