Periodic importing file in the background.

[Zdz16]

Hi friends;

I still need your help to implement a detection of the arrival of a file in a known directory. I have an Access 2010 database in which I have to periodically import data from a text file in a specific table. However, I would like to do this automatically when the base is open and without the intervention of the user. I think to a VBA procedure that runs periodically to detect the file and import it if it is in the directory, this in the background without penalizing the user.

Is this possible with VBA?
Do you have links or example that discussed on this topic ?



Thanks in advance for your help

[ItsMe]

Have you considered the Dir() function?

[Zdz16]

Thinks for you Replay;

Yes, I know the function and I used it already.
My question is for the initiation of the execution of the procedure. I have no idea how to achieve this. It means, cause the periodic execution of the procedure without intervention.

[ItsMe]

You could use a form's timer. You could create your own timer in VBA that uses the machines system clock. The issue with this approach is that timers are resource hogs. Perhaps the best approach would be to use Task Scheduler to launch some VB script to open an Access file. Have the Access file check the directory and take the necessary action if found. Have the Task Scheduler close the VBS file after a predetermined amount of time.

[Zdz16]

Your idea is might work. But I forgot to specify that when the file arrives in the directory, the DB is used by one or more users. I think I'll start by putting an option in the menu that the user initiates the importing periodically. This waiting to find an alternative.

[ItsMe]

..the DB is used by one or more users...

My suggestion would require an FE that would be dedicated to the process.

[Zdz16]

Can you please, explaine the word 'FE'

B.R.

[ItsMe]

It is typical to have a Front End file to handle the Application or "Public Interface" part and a Back End file to manage the data tables. The users will open the FE file and the FE file will link to one or more BE files.

It is also common to have FE files that perform specific functions. For instance, an FE that is designed for Operations may not be the same file as the one for HR or Payroll. It is best to have each user use their own FE file on their local machine/client. Some or all FE files will be a similar version where others may be different.

Create an FE that resides on a machine that has the available resources to manage the Scheduled Task and the procedure.

[Zdz16]

Thanks much for these explanations.

Cheers on the forum.
Bye