-matched datafile is open (after
the last folder separator, the datafile name matches the structure file name).
Then use OPEN DATA FILE to open the desired one.
Hth!
David Ringsmuth
From: wangel--- via 4D_Tech
Sent: Wednesday, October 30, 2019 4:24 AM
To: 4d_tech@lists.4d.com
Cc: wan...@online.no
Hallo Chip,
Yes I am aware of that. I was experimenting with OPEN DATA FILE to avoid 4D
asking for a datafile. My idea was to distribute at standalone program with the
structure in one folder and the datafile in another folder. That way the
datafile would not be deleted when updating the
I may be the only one who have tried using OPEN DATA FILE without knowing
how it works. But all the same I like to point out the following:
OPEN DATA FILE (MyDataFile) informs 4D to use MyDataFile. It then closes 4D
and start it up again. Simple enough. To avoid a loop (like in the On
Startup
hip
On Mon, 28 Oct 2019 21:29:17 +0100, wangel--- via 4D_Tech wrote:
> Thanks for your response Jeremy. You have made it clear to me that
> OPEN DATA FILE first closes the database and then reopen it with the
> wanted datafile and then repeat that unless something stops it. I
> tried w
Thanks for your response Jeremy. You have made it clear to me that OPEN DATA
FILE first closes the database and then reopen it with the wanted datafile and
then repeat that unless something stops it. I tried with $dataPath:="" which
obviously was not a particularly brilliant idea.
when the new data file opens
6. Go to step 1; hence your loop
From the OPEN DATA FILE documentation:
If the access path sets a valid data file, 4D quits the database in progress
and re-opens it with the specified data file. In single-user mode, the
Semaphore and the On
Startup database method
I am trying to use in "On Startup" but I get an endless
loop. The code is:
C_TEXT($dataPath)
$dataPath:="C:\\MyFolder\\MyData.4dd"
If ($dataPath#"")
OPEN DATA FILE($dataPath) //open it
$dataPath:=""
End if
What am I
Sujit.
What about storing the data in another data file altogether that you can access
from either.
So…something like this…
CREATE DATABASE IF NOT EXISTS DATAFILE <<$VerifyDataPath>> auto_close;
USE LOCAL DATABASE datafile <<$VerifyStructurePath>> auto_close;
CREATE TABLE IF NOT EXISTS VERIFY
Thanks Nigel for your code.
In my situation I have a dialog which gives the user an option to choose
which data file they want to open:
www.fortuna.com.au/4D_issues/startup-dialog.png
So the user can either open/setup his/her file or explore a demo data file.
This was all cool till I put the ob
Sujit.
You can control where the default datafile is using build with xml keys…i hope
the following does not stray far from what you are trying to do….
I know that at one point I wanted to a make a downloadable single user demo
version of a product AND i wanted new client server builds t
Does anyone know where 4D Stores the default Data file an application opens
with?
I know it opens the last Data file opened but where is this information
stored?
--
xxx
"There must be ingenuity as well as intention, strategy as well as
strength. "
***
11 matches
Mail list logo
