FiveTech Software tech support forums

... ArrCell(): Methods for direct manipulation of array data source cells.

Lock(), UnLock(): Methods for controlling data modification by locking/unlocking the browse.

Analogy: These are like the tools you use to repair or modify your car – wrenches, paintbrushes, etc. They allow you to change the ...

... XBrowse internally builds bOnPost edit codeblock suitable for the database used. XBrowse knows how to save changes, including locking and unlocking records.

Let us now test the same program without bOnPostEdit

This is the modified code.
#include "fivewin.ch"

REQUEST DBFCDX

function ...

... there is another way to handle your problem, but it is a bit complicated.

Instead of the program locking a record when a user opens it and only unlocking it when the record is saved, the record is only locked for a split second when the record saved. Thus, nobody can walk away leaving a record ...

Dear Otto,

DBFs accesses on the web are managed by Harbour (and mod_harbour) the same way as on a LAN (shared access and record locking, unlocking)

So we have the same limitations that we have on a desktop EXE working on a LAN regarding the use of DBFs: almost none

... if there is a USB HUB where you need a password to unlock the port.
ykushcmd.exe -d 3 PW xxxtest
Without knowing the PW or the serial number, unlocking should not be possible. To copy ykushcmd.exe and start on the PC should not be enough.

From Yepkit Technical Support:

That can be implemented ...

... keep confusing the issue of converting to multi-user with using database objects. Database objects do handle opening in shared mode, locking and unlocking records with automatic-retrys, etc. that are needed for multi-user apps. But there are other issues, such as reindexing, zapping, and packing ...

... Where is the need to write the unnecessary code to Lock, Save and Unlock()?
How do you think FWH releases methods without inbuilt locking and unlocking?

FWH methods are simple to use. It is simpler and safer to use the methods as they are provided. Kindly do not complicate them with such ...

Silvio,

As I mentioned in my post in another thread of yours, you really need to start using database objects. All of these problems will go away.

No more dealing with workareas, locking/unlocking, committing, opening and closing files, etc.

James

... changed or not and accordingly decides to refresh
browse or row. So now it is enough to call RefreshCurrent() after editing.

- Now, locking and unlocking actions of browse do not disturb any file or
record locks ( flock() / dbrlock(nrec) ) already placed by the programmer.
Also, now internal ...

... static variables. The CVM uses two different Clipper arrays for this
purpose.
f.. The memory: Responsible for allocating, reallocating, locking,
unlocking and freeing memory. It also organizes garbage collection. It
directly connects to the Windows API memory management functions. This
subsystem is ...

... Edit. We just indicate to xbrowse which columns we want to edit. XBrowse automatically handles editing, saving to database (include locking and unlocking) and refresh the current row. In case we modify a sorted column, xbrowse decides that a full refresh is required. If we are displaying totals in ...

... If no record identifier is passed to the function, DbRUnlock() bahaves like DbUnlock() since all active record locks are released.
Locking and unlocking one or more records for shared write access is the task of DbRlock() and DbRUnlock(), while RLock() works with the current record and DbUnlock ...

... If no record identifier is passed to the function, DbRUnlock() bahaves like DbUnlock() since all active record locks are released.
Locking and unlocking one or more records for shared write access is the task of DbRlock() and DbRUnlock(), while RLock() works with the current record and DbUnlock ...

... any key invokes inline edit. If not, the user can start edit first by pressing ENTER key.

The entire process of editing the cell, locking/unlocking of the table, saving data and refreshing the browse is all automatic.

After testing this sample, you may then extend this sample to your DBFs ...

... ago. I can't find it in my notes, but as I remember it the way was to record the file and user in a DBF when locking and remove the record when unlocking. The problem comes if there is a crash when it is marked locked--it will remain marked as locked when the app is restarted. By "marked locked" I ...