r_z_aret
Tue Sep 19 15:23:16 CDT 2006
I delayed answering because I hoped someone with a more directly
useful answer might come along. No such luck, so I'll try.
On Mon, 18 Sep 2006 15:36:06 +0200, "Hendrik Schinnenburg"
<hschinnenburg@wschmitz.de> wrote:
>Hello NG,
>sorry for my bad english, but i try to do my best.
>I use VS 2003 --> vb.net with sdk
>
>I'm a beginner to develope programms for mobile devices.
>I need to develop an Application for an Barcodescanning device.
>Anyone who can give me an Example to see how something works ?
>
>The Steps are
>1. The mobile device gets an XML or Ascii File.
>2. The Data goes in an Database on these device
>3. A scan would check if there is a valid code in the database
>4. The time of the valid code would be write in the database
>5. A XML or Ascii File would send to the desktop
First, are you sure you need to develop this yourself? I'm definitely
biased (see web site in my signature), but think that buying is often
less expensive, and even more often faster, than building your own.
Especially if you don't have much experience.
You've got many options for working with a database. We use
comma-delimited files on the handheld, and have a server utility on
the "desktop" that translates between those files and a real database.
We could have just let Access (or probably some other database) read
the files directly. I _think_ some databases share the same file
format for handhelds and "big" Windows, so you can just transfer the
database file. If you write a browser-based application, then all the
real work is done on the "desktop", so that app can have direct access
to a database. I just used google
(
http://groups.google.com/advanced_group_search) to look up
database
in this newsgroup and got 5880 hits. That would be a _lot_ of wading,
but I think you will get some leads once you start.
You definitely need a reliable transfer method. If you set things up
so you're synchronizing files, you could let ActiveSync do all the
work. Or you could right a _desktop_ program that uses RAPI. Or use
FTP client code on the handheld. Or several other options. Whatever
method you use needs to survive the abuse of real users.
You will need something running on the handheld to prompt users. Maybe
browser based. Maybe an executable.
You will need something to accept the bar codes. I work with whatever
keyboard wedge comes with the scanner. Some people work with the SDK
that comes with one particular scanner. I just used google to look up
barcode
in this newsgroup and got 204 hits. I took a quick look and think
you'll need to wade a bit to get useful info. I also suggest reading a
27 Jan - 1 Feb 2005 thread called "hooking barcode readers to the
Pocket PC and what uses people find for these great devices ( was
boycott ....)" in microsoft.public.pocketpc
>
>
>This is the funstion i need.
>Can anyone give me a tutorial or Help ?
Sorry, but I can't think of anything simple.
>
>
>Please
>Hendrik
>
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Robert E. Zaret, eMVP
PenFact, Inc.
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Boston, MA 02116
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