FileStream throwing exception

[George]

Hi.

I'm doing a class for accessing the Serial port using a file stream.
I open the COM using CreateFile(win32API) and then create the file stream.
However when writting several times I get a System.IO.IOException with "An
attempt was made to move the file pointer before
the beginning of the file"

Any help. How could I avoid it?

[Ignacio Machin \( .NET/ C# MVP \)]

Hi George,
I think that the best way of using the serial port is using an existen
library, take a look at this article from MSDN magazine, you could also
google in this group for another solution, I know this has been discussed
before.

http://msdn.microsoft.com/msdnmag/is...netserialcomm/

Cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

"George" <ge*********@NOSPANgmx.net> wrote in message
news:Xn************************@130.206.5.54...

Hi.

I'm doing a class for accessing the Serial port using a file stream.
I open the COM using CreateFile(win32API) and then create the file stream.
However when writting several times I get a System.IO.IOException with "An
attempt was made to move the file pointer before
the beginning of the file"

Any help. How could I avoid it?

[George]

I have already read it, but it seems to be for asynchronous comunication
and mine is sychronous. I don't know how i could get that library to
work.

BTW I have managed to solve my problem. Now I have openned 2 Filestream,
one from reading and the other for writting. This way it works.

"Ignacio Machin \( .NET/ C# MVP \)" <ignacio.machin AT dot.state.fl.us>
wrote in news:O$**************@TK2MSFTNGP12.phx.gbl:

Hi George,
I think that the best way of using the serial port is using an
existen
library, take a look at this article from MSDN magazine, you could
also google in this group for another solution, I know this has been
discussed before.

http://msdn.microsoft.com/msdnmag/is...netserialcomm/

Cheers,

--
Saludos a todos
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