Control.Dropdown doesn’t work - ms-access

I have a form with a combo box cboListPeople. The GotFocus event is cboListPeople.Dropdown. For a fraction of a second I think I can see the dropdown but it immediately closes. Focus remains with cboListPeople and when clicked, the dropdown appears as expected. I have tried loading the form at another control thus:
Private Sub Form_Load()
Me.Role.LimitToList = True
DoCmd.GoToControl “OfficerLookup”
cboListPeople.SetFocus
End Sub
The result is the same problem as initially outlined above.

Its hard to tell what's going on from what you've described, but if you're seeing it momentarily, it sounds like you might have a conflict in your code somewhere. Do you have any macros or expression builder events in place? If so, there's a possibility of conflicting between these events and your VBA code.

Related

Removing focus from subForm on a mainForm in Access

I have a really frustrating problem. Basically I have a mainForm with 3-4 subForms all in datasheet view. What is a generic way to REMOVE focus from subForm after a record is selected and set it to a control on mainForm?
I tried:
OnCurrent Event:
Me.Parent.Form.SetFocus
Me.Parent.[Control].SetFocus
and it works half the time. The problem is, however, when user selects the record by clicking into some field in the subForm. Then the highlightedfields are either A) the field in the subForm, B) the field in the mainForm. Decided seemingly at random.
How do I CANCEL/REMOVE the focus from the subForm completely before setting the new focus elsewhere?
That would be to move focus to a control on the parent form:
Me.Parent!SomeControl.SetFocus
A workaround for this peculiar problem that solved it for me in the end was to make the field in the subForm look like a hyperlink (ie. user can "click" on it).
Then make an OnClick Event which sets the correct focus, that is:
Public Sub [Field]_Click()
On Error GoTo Goto_Err
'some other code
Me.Parent.[Control].SetFocus
Goto_Exit:
Exit Sub
Goto_Err:
MsgBox Error$
Resume Goto_Exit
End Sub
This workaround is not ideal as the user has to click the field itself, rather than simply move to an another record by pressing up/down arrow.

Openning a new form from a tab

I'm creating forms with VBA/Access to access my database.
In a form, I have a *lst_sinistres* listbox that displays the results of my SQL query and when I doubleclick on one of the results it opens me another form with thanks to this code
Private Sub lst_sinistres_DblClick(Cancel As Integer)
DoCmd.OpenForm "F_SINISTRE_MRH", acNormal, , , , , Me.lst_sinistres.Value
End Sub
I wanted to change my form, and add tabs to make it more ergonomic. So I placed my *lst_sinistres* listbox inside a tab.
The problem is that when I doubleclick on one of the results in this listbox (now placed in the tab), the form *F_SINISTRE_MRH* does not open.
Does someone have an idea of ​​where the problem might come?
Thank you
A quirk of VBA control events is that event code can become detached from the control object. Things that cause this tend to be re-naming controls and copy/pasting similar code between controls. To move your listbox onto a tab control you needed to cut and paste it temporarily. That broke the link between the written code and the object name. When the code and object are properly linked, [Event Procedure] shows up in the property sheet (as suggested by #4dmonster).
If you are in the VBA editor, choosing Debug->Compile will search through all the code and re-link event code with like-named controls. This step is worth a try before re-writing because you may end up with orphan blocks of
Private Sub OldControlName_DblClick(Cancel As Integer)
MsgBox "Why don't I work anymore?"
End Sub
that are treated as Form-level subroutines that just happen to never be called.
pT

Run VBA code whenever a tabbed form is reselected in Access

EDIT: For clarification, I'm talking in the below post about tabbed document browsing, not a Tab Control. However, if you're looking for roughly the same problem but regarding a Tab Control, Gord Thompson's answer is correct. Two answers for the price of one!
I've got an Access 2007 database that uses tabbed documents. I need to run some VBA code every time a user selects the form called "Reports", either via opening it or clicking on its tab if it's already open.
I could achieve much the same thing by closing it each time it's used and running the code on an OnLoad event, but ideally I'd like to keep it open so that users can keep the settings of the various drop down boxes, radio boxes etc that they've already set on "Reports".
I was hoping for an event that could run code on tab reselection, but neither of my guesses (OnCurrent and GotFocus) seem to work (OnCurrent works only when the form is opened, like OnLoad would).
Any ideas greatly appreciated - can't find what I'm looking for on Google, though I suspect that's because I don't know exactly what I'm looking for.
The .Value property of a TabControl returns the index (zero-based) of the current page. So, if I have a TabControl named TabCtl14 that contains two pages, FirstPage and SecondPage, then the code...
Private Sub TabCtl14_Click()
If Me.TabCtl14.Value = 1 Then
MsgBox "SecondPage was clicked."
End If
End Sub
...displays the MsgBox whenever I click the "SecondPage" tab in the TabControl.
Have found the answer I was looking for. It's the OnActivate event.

Obtaining textbox value in change event handler

I've written a form that performs queries asynchronously as text is typed into a textbox, however I somewhat arbitrarily seem to get the following error thrown: "You can't reference a property or method for a control unless the control has focus."
The immediately relevant code is:
Dim UpdateRequested As Boolean
Dim qryText As String
.
.
.
Private Sub txtBox_Change()
qryText = txtBox.Text
UpdateRequested = true
End Sub
Some place in the ellipses is the code that handles dynamically loading an ADODB record set, populating a local table, and refreshing a sub form. However, even when I disable this code, the problem persists: Sometimes I get the error. Sometimes I do not.
This seems to be persistent through closing the database and reopening it. Every time it starts working again, it's because I've been fooling around with code in the debugger, but I'm not sure what exactly is causing it to magically "just work" or what is causing it to not work at all.
Update
Just to make things more puzzling, I added a couple of simple event handlers:
Private Sub txtBox_GotFocus()
MsgBox "Got focus"
End Sub
Private Sub txtBox_LostFocus()
MsgBox "Lost focus"
End Sub
I run the form. I click in the test box. I receive the "Got focus" message. As soon as I type I see the error as described above. If I re-open the form, I can click between the text box in question (which itself is unbound) and a bound text box in the sub form and see both "Got focus" and "lost focus" messages as one would expect. Furthermore, showing a message box with the current value of "Screen.ActiveControl.Name" shows the expected name just before the Text property is accessed.
I know this is an old thread but it's the first I found when I had the same problem. None of the answers helped except Kaganar's own solution, which pointed me in the right direction. I'm guessing the reason people had trouble reproducing the error is there are some important details missing from Kaganar's description:
The Textbox was in the form header (or footer).
The form did not allow additions.
Because I believe the full answer is...
The Text property of any control is inaccessible when the form has a record source with no records to edit
I think there is part of Access that does not realise the textbox exists :) To understand how that might come about...
Put the unbound TextBox in the detail of the form
Do not allow additions
Set the recordsource to return no records
Open the form.
Hey presto! No Textbox.
Return a record, or allow additions, or delete the recordsource, et Voila! There is your Textbox with it's Text.
I added a text box named txtFoo to my form. Here is the procedure for its change event.
Private Sub txtFoo_Change()
Debug.Print "Value: " & Nz(Me.txtFoo.value, "*Null*") & _
"; Text: " & Nz(Me.txtFoo.Text, "*Null*")
End Sub
Then, with nothing in txtFoo (IOW its value is Null) when I type "abc" into txtFoo, here is what I see in the Immediate window.
Value: *Null*; Text: a
Value: *Null*; Text: ab
Value: *Null*; Text: abc
Basically, each character I add to the text box triggers its change event and prints the text box's current contents to the Immediate window.
As far as I understand, you want to do something similar ... except you want a different action in place of Debug.Print. Take another look at your change event procedure and compare it to mine.
Private Sub txtBox_Change()
qryText = txtVendorName.Text
UpdateRequested = true
End Sub
That is the change event for a control named txtBox. Within that procedure you reference the .Text property of a control named txtVendorName. However txtBox is the active control at the time its change event code runs ... so you can not access the .Text property of txtVendorName because it is not the active control.
Given that this problem surfaces for only the one form, but not on other new forms, I would suspect the problem form has become corrupted. Read the 2 answers to this SO question and try decompile to cure the corruption: HOW TO decompile and recompile. Decompile is often recommended as a routine practice during development.
You could also use the undocumented Application.SaveAsText method to save your form as a text file. Delete the bad form, and use Application.LoadFromText to import the saved text copy.
Make sure you have a backup copy of your db file in case anything goes wrong.
To set or return a control's Text property, the control must have the focus, or an error occurs.
To move the focus to a control, you can use txtBox.SetFocus or DoCmd.GoToControl "txtBox".
Also, the Text property is not always available:
While the control has the focus, the Text property contains the text data currently in the control; the Value property contains the last saved data for the control. When you move the focus to another control, the control's data is updated, and the Value property is set to this new value. The Text property setting is then unavailable until the control gets the focus again.
The form had a lingering data source. I'm not sure why this would cause to the behavior described above, especially considering the text box controls are unbound, however since removing the data source the text boxes are behaving as expected.
You said "somewhat arbitrarily" I think if everything is fine you must get the error when your form's recordset is empty.
In fact it's a know bug in Access and this error can occur if these conditions are met:
a) The control is in the Form Header or Form footer section
b) The form is filtered such that no records match (or there are no records)
c) No new record can be added.
In this case, the Detail section of the form goes blank. The controlis still
visible, but Access gets really confused and can throw the error you
describe.
More info:
http://allenbrowne.com/bug-06.html
I know my answer is out of date. Yet you just can set focus three times. On TextBox in header, on any texbox in detail space and On TextBox in header again. I use access 2003.

Access form's Detail's event only triggers on first record

I'm designing a Form in Access 2003. My goal is that when the user double-clicks on a record (aka Detail), a second form opens. This is easy enough to do when I start from scratch.
But of course, I'm not starting from scratch. I've been working on this for a few hours now, have added some conditionally formatted textboxes, fields, etc, and don't want to start over if I can avoid it.
I don't know if I turned on/off some obscure property, but I've been working on this form for a few hours now and the Double-Click event of the Details section only triggers when I double-click on the first record or any other with conditional formatting.
To troubleshoot this, I've gone so far as to comment out all the other VBA script except this:
Private Sub Form_Load()
Me.Application.DoCmd.Maximize
End Sub
Sub GotoFrmDetails()
MsgBox "You Double Clicked Me!"
End Sub
Even with the VBA script reduced to just these lines, the DoubleClick event only triggers on the first record and no other. Can anyone tell me what wrong? I'd rather not have to rebuild this from scratch.
I find the click events of form sections to be more trouble than they are worth (click event doesn't pass through to the form if user clicks on a control or label, etc). What I use instead are transparent command buttons.
Just add a command button to your form and set its Transparent property equal to True. Then you can use the Z-order to make fine-grain changes if necessary (send to front/back, send forward/back).
They can be hard to find once you make them transparent, so be sure to give them descriptive names.
If you want the user to be able to double click anywhere in the detail section, just make the transparent command button's height/width match the section height/width.
Move your code from the Detail section DoubleClick event to the transparent command button's DoubleClick event and you should be good to go.
I'm wondering if the rows are getting their Locked property set to Yes, or their Enabled property set to No during your condition formatting.