How to protect a prog.-section to be opend twice ?

[ukoenig]

Hello,

I have to protect a program-section, to be opend twice in a lan.
For the moment I'm using a INI to detect if the section is in use.
Maybe still another solution ?
It belongs to the section < writing invoices > that can be open only once the same time.
In this section, some new DBF's must be created for calculations and statistics.
Or maybe a possible solution to show the metro-button DISABLED if in use ?



best regards
Uwe

[Marc Vanzegbroeck]

Uwe,

Is this a seperate DBF-file in your program?
If so, maybe you can lock the DBF if you open this, and unlock if you leave it.
For the other users on the LAN you can chech if the file is locked in order To enable/disable this button.

[Antonio Linares]

Uwe,

You could do a oBtn:Disable() or simple use a WHEN clause

but the Method Paint() of Class TMetroBtn has to be modified to paint it disabled

[ukoenig]

Antonio, Mark

thank You very much.
Maybe using a DUMMY.dbf on top of the section.
But I think a Button-disable might be a better solution.
The user can see, that it is impossible to write invoices for the moment.

best regards
Uwe