Solved

Access 2007 Verification Question on database tables

Posted on 2011-09-20
3
220 Views
Last Modified: 2012-05-12
I have attached a database that contains three Tables and three Data Entry Forms for the tables.  The Tables Are;  Point of Interest, Vehicles, and Weapons.  I need the capability to verify if a Driver License Number exists in the Point of Inrterest Table if the Driver License Number is entered in the Vehicle or Weapon Table.  I want an error message to appear when a user tries to enter a Driver License Number on the Vehicle or weapon table in the Driver License TextBox field.  If the Driver License Number exists allow the saveing of the record.  If the Driver License Number does not exist I want a mesage that one has entered a Driver License Number that does not exist.  How can this be done with VBA in ACcess and what property area should the coding be put on a form.  Should the arae be on an after update event or on a On-Click event?

I have attached a sample database I created from scratch real quickly.  CFould you maybe show me some coding how this can be done in VBA?

Thanks

jjc9809
Database2.accdb
0
Comment
Question by:jjc9809
  • 2
3 Comments
 
LVL 12

Accepted Solution

by:
pdebaets earned 500 total points
ID: 36570318
In the DriverLicenseNumber field BeforeUpdate event procedure on the Vehicles and Weapons form, put the following code:

Dim knt As Integer
knt = DCount("*", "PointOfInterest", "DriverLicenseNumber = '" & Me!DriverLicenseNumber & "'")
If knt > 0 Then
    '* Driver License Number exists on Point of Interest table.
Else
    MsgBox "Driver license does not exist on Point of Interest table. " & vbCrLf & vbCrLf & "Please press <ESC> to undo your changes."
    Cancel = True
End If

Open in new window

0
 

Author Comment

by:jjc9809
ID: 36570667
I ca't get this to work.  See my attachments where I placed the code ad tried to run it.  See if you can get it to work.

jjc9809
RunCode.jpg
CODE-DEBUG.jpg
0
 

Author Comment

by:jjc9809
ID: 36570710
Pdebaets,
 
I found my problem.  I used an incorrect name in the coding for PointOfInterest Table.  I renamed the table and removed the space in PointOfInterest.  I named the table PointOf Interest as the tablename but failed to indicate the space there so the computer was unable to find the table.

Thanks

This works.  

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

In the previous article, Using a Critera Form to Filter Records (http://www.experts-exchange.com/A_6069.html), the form was basically a data container storing user input, which queries and other database objects could read. The form had to remain op…
QuickBooks® has a great invoice interface that we were happy with for a while but that changed in 2001 through no fault of Intuit®. Our industry's unit names are dictated by RUS: the Rural Utilities Services division of USDA. Contracts contain un…
Basics of query design. Shows you how to construct a simple query by adding tables, perform joins, defining output columns, perform sorting, and apply criteria.
In Microsoft Access, learn different ways of passing a string value within a string argument. Also learn what a “Type Mis-match” error is about.

920 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

14 Experts available now in Live!

Get 1:1 Help Now