Solved

Trigger message box if nothing is selected

Posted on 2014-09-04
4
216 Views
Last Modified: 2014-09-04
This should be simple, but I haven't been able to figure it out.

I have a multi select list box. I want to give the user an error message if they click a button and nothing is selected. this is what I have right now:

If IsNull(Me!lstPrevRpts) Then
MsgBox "No Previous Activity Has Been Selected"
Me!lstPrevRpts.SetFocus

End If

Open in new window


Now I get the message box, but I get it even when items are selected. So that part about "If IsNull...." doesn't seem to be doing anything.

I am sure this is probably something simple that I just don't know how to do. I have tried several other ways of coding this, but nothing seems to be working for me.
0
Comment
Question by:Megin
  • 2
4 Comments
 
LVL 16

Expert Comment

by:13598
ID: 40304385
try this:
if (string.IsNullOrEmpty(Me!lstPrevRpts.SelectedText))
MsgBox "No Previous Activity Has Been Selected"
Me!lstPrevRpts.SetFocus

End If
0
 
LVL 84

Accepted Solution

by:
Scott McDaniel (Microsoft Access MVP - EE MVE ) earned 500 total points
ID: 40304388
Check the ItemsSelected.Count property:

If Me.YourListBox.ItemsSelected.Count = 0 Then
  'user did not select anything
Else
  ' user selected at least one
End If
0
 
LVL 84
ID: 40304392
if (string.IsNullOrEmpty(Me!lstPrevRpts.SelectedText))
That's .NET code, not VBA. It won't work in Access.
0
 

Author Closing Comment

by:Megin
ID: 40304409
Works great!

I don't know what I would do without the experts here! Thank you!!!!
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

When you are entering numbers in a speadsheet, and don't remember what 6×7 is, you just type “=6*7" instead. It works in every cell! This is not so in Access. To enter the elusive 42 in a text box, you have to find a calculator, and then copy the re…
In a multiple monitor setup, if you don't want to use AutoCenter to position your popup forms, you have a problem: where will they appear?  Sometimes you may have an additional problem: where the devil did they go?  If you last had a popup form open…
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 the trick to repeating sub-report headings at the top of each page. The problem with sub-reports and headings: Add a dummy group to the sub report using the expression =1: Set the “Repeat Section” property of the dummy…

820 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