Question

Set default value of a textbox in a form

Asked by: angie_angie

Hi Experts,

I have a form frmA. In this form I prompt the user to enter a caseID that will match to myTable.caseID.
When I click on Enter botton on frmA, another form frmB will pop up with a textbox myTextbox
I want to set the default value of this textbox to be the value of myTable.aValue that matches with the caseID that user keys in in frmA.

So I designed a query:

SELECT myTable.aValue
FROM myTable
WHERE (((myTable.caseID)=[Forms]![frmA]![txtEnterCaseID]));

This query alone works fine. But when I put it in the "Default Value" property in frmB. It doesn't work. In fact, it shows a #Name?

Can anyone help me with this?

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Asked On
2008-06-26 at 23:06:26ID23520708
Tags

MS Access

,

VBA

Topics

Access Forms

,

Access Coding/Macros

,

Hypertext Markup Language (HTML)

Participating Experts
1
Points
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Comments
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Answers

 

by: boag2000Posted on 2008-06-26 at 23:16:47ID: 21881276

angie_angie,

Here is one way:

JeffCoachman

 

by: angie_angiePosted on 2008-06-26 at 23:54:04ID: 21881406

JeffCoachman,

I saw your sample. However, my problem here is a bit different since I'm trying to set the default value to be a value in the table that matches to the caseID instead of the caseID itself. So, instead of

Private Sub cmdOpenFormB_Click()
    DoCmd.OpenForm "FormB", , , , , , Me.txtFormACaseID
End Sub

Should I replace "Me.txtFormACaseID" in your code with the query name that I designed to get the value?

How can I do that then?

Really need your help! Thank you very much!

 

by: boag2000Posted on 2008-06-27 at 07:57:07ID: 21884433

angie_angie,

I'm not quite sure it has to be a default value.

It just has to be "the" Value.

A Default value is used to set the default for a field that will probably be the same for ALL records in the table.
For example:
The default value for a minimum order quantity is 100.
This is a constant for all items.

In your case the matching value will be different for most records.
So you just need THE value. It does not have to be a set as the default value.
Please confirm.

But I usually the "Dlookup" Function is used to retuen a value, not an SQL statement.
The good news is that the syntax is almost the same.

So, following your methodology we can drop the OpenArg method.

So the The ControlSource of the textbox on the second form would be something like this:
=Dlookup("aValue","myTable","caseID=" & [Forms]![frmA]![txtEnterCaseID])
(If the ID is numerical)
Or
=Dlookup("aValue","myTable","caseID=" & "'" & [Forms]![frmA]![txtEnterCaseID] & "'")
(If the ID contains numbers)

Here is a rough sample.

Any questions, post back here
;-)

JeffCoachman

 

by: boag2000Posted on 2008-06-28 at 09:59:17ID: 21891403

angie_angie,

Sorry for the  bad spelling...
:-)
Here it is again (Attached is a "Updated" sample as well:


I'm not quite sure it has to be a default value.

It just has to be "the" Value.

A Default value is used to set the default for a field that will probably be the same for ALL records in the table.
For example:
The default value for a minimum order quantity is 100.
This is a constant for all items.

In your case the matching value will be different for most records.
So you just need THE value. It does not have to be a set as the default value.
Please confirm.

Usually the "Dlookup" Function is used to return a value, not an SQL statement.
The good news is that the syntax is almost the same.

So, following your methodology we can drop the OpenArg method.

So the The ControlSource of the textbox on the second form would be something like this:
=Dlookup("aValue","myTable","caseID=" & [Forms]![frmA]![txtEnterCaseID])
(If the ID is numerical)
Or
=Dlookup("aValue","myTable","caseID=" & "'" & [Forms]![frmA]![txtEnterCaseID] & "'")
(If the ID contains Text)

Here is a rough sample.

Any questions, post back here
;-)

JeffCoachman




20120131-EE-VQP-002

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