Article on showing Windows style error on MS Access Form

F

Flavelle Ballem

I am building an application with several forms. In the BeforeUpdate event
for the form, I will run some data validation routines.

If there is an error, I would like to display an error control next to each
field containing an error (the exclamation point). The user can then hover
over the error control and get an explanation of the error. This is similar
to how a normal windows application works.

Some time ago, I can recall seeing an article that described the exact
technique that I want to use, but I can't find it now. Could someone please
point me to the article?

Many thanks!
 
F

Flavelle Ballem

Some additional information. I would like to use something similar to an
error provider in Visual Studio.
 
P

Peter Yang[MSFT]

Hello Flavelle,

You would properly put the corrected statement in the form's BeforeUpdate
event, and set the event procedure's Cancel argument to True if your
requirements are not met. That will keep the record from being saved. The
following is a sample code that for your reference.

Private Sub Form_BeforeUpdate(Cancel As Integer)
Dim strMsg As String

If Not IsNull(Me.C) Then
If Me.B <> Me.C And IsNull(Me.A) Then
Cancel = True
strMsg = strMsg & "You must supply A if B is not C." & vbCrLf
End If
End If

If IsNull(Me.SomeField) Then
Cancel = True
strMsg = strMsg & "SomeField is required." & vbCrLf
End If

If Cancel Then
strMsg = strMsg & vbCrLf & "Correct the entry, or press <Esc> to
undo."
MsgBox strMsg, vbExclamation, "Invalid Data"
End If
End Sub

As for exclamation point before a field and explanation of the error, I
didn't find the exact sample. However, you might add some hidden image,
label and textbox controls and change the Visible property to true in the
event sub.


More related information:

Part 5 of "Keeping Your Information Accurate" in Access 2003 and Access
2002: "Using Validation Rules to Restrict Data"
http://support.microsoft.com/kb/311172/en-us

If you have any further questions or concerns, please feel free to let's
know. Thanks.

Best Regards,

Peter Yang
MCSE2000/2003, MCSA, MCDBA
Microsoft Online Community Support
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F

Flavelle Ballem

Peter:

Thanks - and I'm okay with what you wrote. A follow-up - any idea where I
can get the image that is used in the Error Provider?
 
P

Peter Yang[MSFT]

Hello Flavelle,

I think you could use the image control and get the image you want from
Web. For example, you could search free icon gallery to get some
references.

Please let's know if you have any further comments on the issue. Thank you.

Best Regards,

Peter Yang
MCSE2000/2003, MCSA, MCDBA
Microsoft Online Partner Support

======================================================
PLEASE NOTE:

This posting is provided "AS IS" with no warranties, and confers no rights.
======================================================
 
P

Peter Yang[MSFT]

Hello Flavelle,

I'm still interested in this issue. If you have any comments or questions,
please feel free to let's know. We look forward to hearing from you.

Best Regards,

Peter Yang
MCSE2000/2003, MCSA, MCDBA
Microsoft Online Partner Support

======================================================
PLEASE NOTE:

This posting is provided "AS IS" with no warranties, and confers no rights.
======================================================
 
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