Solved

How to detect empty Record Source in report detail_format()?

Posted on 2006-11-18
3
470 Views
Last Modified: 2012-06-27
I have a report where I have a detail_format routine to do some additional formatting of the detail lines. This works just fine as long as the record source has rows. However, the user is able to select date ranges, etc in such a way as to result in no rows in the record source query. I would think that Access would never call the detail_format() routine, but it does. The first reference to a bound object causes the report to blow up with: "The Output To action was canceled". In the debugger, it indicates "You entered and expression that has no value" and the debug line highlights the 1st reference to a bound object.

I won't bother asking why Access goes ahead and calls the detail_format() function with no data. What I would like to know is 1) what is the proper way to detect an empty record source in the detail_format() function and 2) how do I gracefully exit (what does the Cancel parameter do? I haven't quite figured this out. I've looked in the MS Access VBA Reference, but can't locate detail_format() under methods, events or functions).
0
Comment
Question by:jmarkfoley
  • 2
3 Comments
 
LVL 65

Accepted Solution

by:
rockiroads earned 500 total points
ID: 17973919
U can use the no data event to track this



Private Sub Report_NoData(Cancel As Integer)
    MsgBox "Sorry but no data found"
    Cancel = true
End Sub



0
 
LVL 65

Expert Comment

by:rockiroads
ID: 17973920
now since this reports a failure, your open report call will trigger an error, u can easily track this anyway
so if u ignore error number 2501, u should be okay

eg

    On Error GoTo ReportLoad_Error
   
    DoCmd.OpenReport "myreport", acViewPreview
   
    Exit Sub
   
ReportLoad_Error:
    If Err.Number <> 2501 Then MsgBox Err.Description
0
 
LVL 1

Author Comment

by:jmarkfoley
ID: 17973950
I chose your first solution because I do want to tell the user there is no date. Thanks.
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 Debugging – Part 1, you learned the basics of the debugging process. You learned how to avoid bugs, as well as how to utilize the Immediate window in the debugging process. This article takes things to the next level by showing you how you can us…
Introduction The Visual Basic for Applications (VBA) language is at the heart of every application that you write. It is your key to taking Access beyond the world of wizards into a world where anything is possible. This article introduces you to…
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…
Familiarize people with the process of utilizing SQL Server functions from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Microsoft Ac…

896 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

13 Experts available now in Live!

Get 1:1 Help Now