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The "Warehouse" application shows how warehouse personnel can enter various
inventory transactions using a Pocket PC wireless handheld device.
Although simple, this generic demo application is fully functional and can be
used as a starting point for a more elaborate application.
This application works both in fully on-line mode, and in situations where
wireless coverage is temporarily not available, such as remote sites or inside
buildings which block or prohibit wireless connections.
When full-time coverage is available, the user can work completely on-line,
with real-time access and updates to the server.
When coverage is not available, the user can enter new transactions in an
off-line ("local") mode.
New transactions are saved in a table on the device as long as necessary.
When online coverage is restored, the saved data can be submitted to the server
so that the central database can be updated.
Running the Warehouse demo:
Click "Warehouse" from the PDA Demo Menu. The XML file containing the application
will be downloaded and cached. (This only happens the FIRST time, unless you "Reset"
the cached apps).
The initial screen shows a Post Inventory Transactions window.
The user can select an inventory transaction type from the dropdown combobox,
then enter various data values as required for the chosen transaction type.
Valid data values are shown in the "Hints" at the right. Note that a barcode
scanner can be used to automatically scan the item number, thus avoiding
many possible keying errors and improving inventory accuracy.
When a transaction has been entered, click "Submit" to save it. If "Local Mode"
is NOT checked, the program will contact the host (the Jargon Software web site
demo database in this case) to edit the values and update the inventory tables in
the database if the edits are ok. If any errors are found, a message is displayed
and the user can correct and resubmit the data.
Now save a transaction in local mode (offline). Check the "Local Mode" checkbox,
then enter a new transaction and click Submit. The data will only be added to the local
"Saved Transactions" table and will not yet be submitted to the central server.
To review an existing transaction, click the "Saved" button to see all the
transactions, click on a row to select a transaction, then click the "Edit Row" button.
The information from the saved transaction will be displayed in the main posting
window. If changes to the data are desired, enter them and then submit again
to save the changed information.
When ready to submit all new and changed transactions to the central server,
uncheck the "Local Mode" checkbox if it was checked, then click the Saved button.
On the "Saved Transactions" window, click the "Submit All" button to submit
the saved transactions to the central server. If any of them contain errors found
during the online edits, that transaction will be displayed in the posting window
with an error message. Simply correct the data, resubmit, and the upload of saved
transactions will continue.
- To end the demo and return to the demo menu, click "Exit" and then OK
the goodbye message.
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