Wireless uploading, selecting, etc... -- dotnet compact framework

Aaron
2/13/2005 11:51:07 PM

Ok, I'll make this as straight-forward of a question as possible. I
have a client who needs an app developed in VB .NET, no problem...but
the thing I have no experience in is the wireless features he wants.
He basically wants tables (I assume he means records) transferred from
the desktop to the PPC based on a unique number stored in a table, if
it's found. His criteria for transferring the data back to the PC is
basically a dump of everything entered since the initial upload, at
least that's how I understand it. Thus my question...where do I
start. Any good sites out there for reference, tutorials, or any
components I might need. Any advice assistance, or anything else
someone can offer would be of great help. I'm still fairly new to the
whole .NET Compact Framework, so keep answers simple and easy to
understand.

Zac Maclean
3/4/2005 8:33:47 AM

Need slightly more detailed connectivity explanation.

Will it be an "always on" connection?

or

Is it a "Connect to Update" system?
I am using a Connect to Update type, and use SQLCE and SQL Server with merge
replication to accomplish this. In testing phase of my app I was running
from a PPC and a laptop w/ SQL and VS2003.NET on it. Both have WLAN and
Bluetooth. I could update through either (using TCP transport). Now, my
app updates to a central SQL server and I use ASP.NET for reporting.

Are you going to have multiple PPC's accessing the same database?
I have 15 running currently accessing my database. I filter Merge
Publications based on the info each PPC needs.
Experience showed me to keep the data at an ABSOLUTE minimum. Too much will
slow down the PPC record queries and your interface.

Also, you may want to get the program flow and initial testing done in VB,
but you should look into C#. I wrote my app in both, and C# is a lot
faster. On the order of 30 seconds to complete an operation in VB vs 7
seconds in C#.

If you choose SQLCE, get this book
[quoted text, click to view]

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dotnet compact framework : Wireless uploading, selecting, etc...