Solved

VB/ADO Record locking Help

Posted on 1999-01-20
2
276 Views
Last Modified: 2013-12-25
i have a problem with VB6/ADO record locking. i'm trying to write a simple database program that is multiuser supported using vb6/ADO, so what i want is record editing deny from multiuser at the same time. consider my configuration is following
CursorLocation = adUseServer
CursorType     = adOpenDynamic
LockType       = adLockPessimistic
Mode           = adModeShareDenyWrite

then when first user is in (EditMode = adEditInProgress), then if the second user go and edit the same record, it will be error right ? but my program goes hang. when i during my testing, i run the first instance of program and stop in Editing mode(EditMode = adEditInProgress), then run the second instance program , when reach the Editing line then my second program goes hang. why ?  



First instance program
----------------------
RS("Field1") = "test1"       'executed this line and exit so that EditMode is go into adEditInProgress


second instance program
-----------------------
RS("Field1") = "test2"       'program goes hang once tried to execute this line


 
0
Comment
Question by:dumper
2 Comments
 
LVL 2

Accepted Solution

by:
cedricd earned 10 total points
ID: 1499243
using the adLockPessimistic , the record is locked on the update
try with adlockoptimistic
0
 

Author Comment

by:dumper
ID: 1499244
but i prefer to use adLockPessimictic because i dont allow second user to be enter into edit mode when the record is edited by another user.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction While answering a recent question about filtering a custom class collection, I realized that this could be accomplished with very little code by using the ScriptControl (SC) library.  This article will introduce you to the SC library a…
You can of course define an array to hold data that is of a particular type like an array of Strings to hold customer names or an array of Doubles to hold customer sales, but what do you do if you want to coordinate that data? This article describes…
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the process of using Access VBA to control Excel using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Excel. Using automation, an Access application can laun…

929 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now