I wonder if you visited this site... http://msdn.microsoft.com/en-us/library/system.io.ports.serialport.aspx some useful things are said even in Comments section there... If your problems persist, you can still use MSCOMM32.OCX
2009/11/12 Markarina <[email protected]> > I seem to be having problems using the standard serial port control > supplied by microsoft, in that the data received event does not always > trigger correctly, basically I have told it to trigger after receiving > 29 bytes but occasionally it triggers after 28 or sometimes after 4. I > initially thought that it might be caused by the device sending the > data, but another program written in Java does not have any issues. > Also using a serial port monitor I can see the data coming in which is > how I have seen the fact that the event triggers incorrectly. > > From reading some of the online microsoft documentation it would > appear that although not explicitly stated there are issues with > microsofts serial port control. > > Does anybody know of anyway work around's to get the control to work > properly or know of a good set of 3rd party controls that I can use. > I'm guessing one possible way round this issue would be to look for > pin changes which hopefully might bypass the issue >
