Validation rules


Im trying to make a text box on a form have a validation rule that if they type more than 31 characters it will show the validation message.

Can someone please tell me how to do this in the expression builder :-)

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Rey Obrero (Capricorn1)Commented:
try to
set the validation rule property of the textbox to

RobJanineAuthor Commented:
Hi Capricorn1

Did not work, was no error, just not doing anything.

Add this code to your form:

Private Sub TextBoxName_Change()
    If Len([TextBoxName].Text) > 31 Then
           MsgBox "That is too long", vbOKOnly
           TextBoxName.text = left(TextBoxName.text,31)
    End If
End Sub

change TextBoxName to the name of the TextBox that you want to limit to 31 characters.


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RobJanineAuthor Commented:
Thanks Arthur,   worked a treat

or, if you just want to limit the text, without a warning message, leave the MsgBox line out.

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