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Access Form and Character Limit

P: 3
Microsoft Access 2003
Windows XP

I need a way to create a code for a form that if the text that is entered does not contain 7 characters, then the user will get an error message and the text field will clear.

Here is the code I have as of now:

Expand|Select|Wrap|Line Numbers
  1. Private Sub sampleno_BeforeUpdate(cancel As Integer
  2.  
  3. Private Sub sampleno_BeforeUpdate(cancel As Integer)
  4.  
  5. Dim sampleno As String
  6.  
  7. If Not sampleno Like "???????" Then
  8.  
  9. Me.Undo
  10.  
  11. MsgBox "Warning Sample Number " _
  12.         & sampleno & " was not the required length.", _
  13.         vbInformation, "InvalidInformation"
  14.  
  15. End If
  16.  
  17. End sub
Any help with this issue will be graetly appreciated.
Sep 14 '07 #1
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2 Replies


MindBender77
100+
P: 234
Does this have to be written in code? You could create a custom input mask on the text box which uses 7 characters. Any more or any less will prompt with an error.
Sep 14 '07 #2

Scott Price
Expert 100+
P: 1,384
Explore the Len() function... It returns the length of a string, usable in vba code.

Regards,
Scott
Sep 14 '07 #3

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