Hi all.
I'm nearing completion of a host app that needs to send data to, and receive
data back from a portable, an HP device. The application running on the
portable will be a .net application.
Basically I need to know the best practice, or most reliable way of sending
and receiving data on a serial connection.
In VB6/EVB I used to use the RAPI commands for sending data, until the 2003
portable OS came out which didn't allow the portable to clear a database.
Do I need to send a text file and parse this into a database created on the
portable? Or can I send a database, or sub set?
Synching the data is not practical for this application, I will want to
overwrite all the data on the portable with every download, and retrieve a
single table from the portable on an upload.
Any ideas?
Cheers,
Tull.
2  1494 
Check out www.opennetcf.org
It is a .net class library that allows you to do pretty much anything
dealing with portable devices.
Hi,
I'm nearing completion of a host app that needs to send data to, and receive
data back from a portable, an HP device. The application running on the
portable will be a .net application.
Basically I need to know the best practice, or most reliable way of sending
and receiving data on a serial connection.
<<
I suppose the most reliable way is to use an error-checked file transfer
protocol, such as XMODEM/CRC. Why do you choose serial instead of a network
connection, though? Or, are you saying that you use a serial ActiveSync
connection (since you mention RAPI)? This really isn't serial, except as a
physical connection. Rather, it tunnels TCP/IP through AS.
In VB6/EVB I used to use the RAPI commands for sending data, until the 2003
portable OS came out which didn't allow the portable to clear a database.
<<
I haven't heard of such a problem. Can you elaborate?
Do I need to send a text file and parse this into a database created on the
portable? Or can I send a database, or sub set?
Synching the data is not practical for this application, I will want to
overwrite all the data on the portable with every download, and retrieve a
single table from the portable on an upload.
SQL CE is the easiest, I think. There are other possibilities, such as the
adapters from OpenNETCF ( www.opennetcf.org).
Your best bet is to ask specific questions about this sort of thing in
microsoft.publi c.dotnet.framew ork.compactfram ework.
Dick
--
Richard Grier (Microsoft Visual Basic MVP)
See www.hardandsoftware.net for contact information.
Author of Visual Basic Programmer's Guide to Serial Communications, 4th
Edition ISBN 1-890422-28-2 (391 pages) published July 2004. See www.mabry.com/vbpgser4 to order. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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