Solved

VB6 - DAO - ReadOnly don't work

Posted on 1999-01-28
7
813 Views
Last Modified: 2013-12-25
I want to open a database in ReadOnly mode.

set db = opendatabase("c:\temp\test.mdb", ReadOnly := True)

I can always write to the tables of this db, even open in ReadOnly.

Is it a bug ?

I want to have an error when I try to write to this database. Is it possible ? How ?

Thanks.
0
Comment
Question by:greisch
7 Comments
 
LVL 13

Expert Comment

by:Mirkwood
ID: 1499558
Try without using a named argument.
Set <database> = OpenDatabase(dbname, options, readonly, connect)

0
 
LVL 3

Author Comment

by:greisch
ID: 1499559
I doesn't work.
0
 
LVL 12

Expert Comment

by:jgv
ID: 1499560
If you're creating a record set, specify that as read only. The following code produces an error when attempting to add a record.

Dim db As Database
Dim rs As Recordset

Set db = OpenDatabase("c:\temp\test.mdb")
Set rs = db.OpenRecordset("Table1", dbOpenDynaset, dbReadOnly)

With rs
    .AddNew
    !Field1 = "newinfo"
    .Update
End With
0
Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

 
LVL 3

Author Comment

by:greisch
ID: 1499561
To jgv:

It'working... But I want to have the DATABASE readonly. So I don't need to specify dbReadOnly each time I open a recordset.
I thought use that to open the database read-only for users and read-write for managers. So I don't have to change my code.

Thanks
0
 
LVL 1

Expert Comment

by:chdy
ID: 1499562
Option Explicit

Dim ws As Workspace
Dim db As Database
Dim rs As Recordset

Dim sql as String

Private Sub Command2_Click()
Dim iCNT%
 
    Set ws = Workspaces(0)
   
    Set db = ws.OpenDatabase("C:\Door\Door.mdb")
   
    sql = "select * from Door"
   
    Set rs = db.OpenRecordset(sql)
:
:
:
      sTerm = DateDiff("s", sSTime, sETime)
   
      rs.AddNew '<- Insert Data
   
      rs.Fields("DoorOPT") = sSND & " " & sSNT
      rs.Fields("DoorCLT") = sEND & " " & sENT
      rs.Fields("DoorTRM") = sTerm

      rs.Update '<- Very Important

Do you know above content?
Good Luck...
0
 
LVL 3

Author Comment

by:greisch
ID: 1499563
Excuse me but I don't see the relation between my question and your answer !!!
0
 
LVL 1

Accepted Solution

by:
jonder earned 100 total points
ID: 1499564
I want to open a database in ReadOnly mode.

set db = opendatabase("c:\temp\test.mdb", ReadOnly := True)

Is it a bug ?

I want to have an error when I try to write to this database. Is it possible ? How ?

Set db = DBEngine.Workspaces(0).OpenDatabase("c:\temp\test.mdb", False, False)
         ^
         This is the Read Only set it to False as above...

0

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

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

I was working on a PowerPoint add-in the other day and a client asked me "can you implement a feature which processes a chart when it's pasted into a slide from another deck?". It got me wondering how to hook into built-in ribbon events in Office.
Since upgrading to Office 2013 or higher installing the Smart Indenter addin will fail. This article will explain how to install it so it will work regardless of the Office version installed.
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…
Show developers how to use a criteria form to limit the data that appears on an Access report. It is a common requirement that users can specify the criteria for a report at runtime. The easiest way to accomplish this is using a criteria form that a…

773 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