MS Access VBA display Listbox Count to Textbox - ms-access

This is not working.
Me.Textbox = Me.ListBox.ListCount
It say;
What code should I put into it?
When I load the Form, it should display the count of the ListBox's items on the textbox.

The TextBox and ListBox are not the names of the variables, but oh the classes. When you instantiate an object of Textbox (or ListBox), VB gives it the name TexBox1 (or ListBox1). You can change this name in the properties window. I suppose what you have now are TextBox1 and ListBox1.
Me.Textbox1 = Me.ListBox1.ListCount

There is nothing wrong with the syntax of your code. So the first thing that should be looked at is the names of your listbox and textbox. By default ms-access calls them list and text followed by a number. To find the assigned name go to their property and then the other tab and name of the control is at the top of the list.
Also make sure that you are running the code from the form's onload event. You may try the forms oncurrent event to see if it makes ant difence

Related

MS-Access 2007 - How to programatically access sub form columns data on click event

I have an unbound form that includes a subform.
The subform is unbound and gets populated when the user clicks on a push button on the main form.
I want to be able to grammatically handle the click even on the sub form and get the data in a specific column. How can I do that? The same thing one would do with VB.NET/C#.NET if you know what I mean.
When I use the properties tab of the subform, I get an expression builder. That does not get me into a sub/function/form or module VBA code editor.
Any help is appreciated.
Edit - Something that worked!
Thanks for the help I got from the answers below.
One way to refer to column in a selected row in a subform is by using this expression:
Me!ChildFormName.Form!ColumnNameInSubForm
EX:
ME!Sales.Form!SalesmanID
Additional Reference here...
A problem with this approach is that the available events On Enter and On Exit don't behave like "click" event does. One needs to focus out of the sub form (by clicking on another control) for either to be triggered!
Look again. The Properties' sheet has a tab, Events. Select any event and select "Event Procedure" from the dropdown and click the ellipsis - that opens the code editor.
Refer to sub-form control form main-form event handler (VBA Sub):
Me!Subform1.Form!ControlName
Me is self reference to the main-form, Subform1 is the control containing the sub-form, Form is a reference to the sub-form, and ControlName is a reference to the field on the sub-form. ! is a short way to refer to a control in a form's contrls collection.
A longer way to write the above would be: Me.contrls("Subform1").Form.Contrls("ControlName")
Refer to a main-form control form a sub-form event handler (VBA Sub):
Me.Parent!ControlName
Me is self reference to the sub-form, Parent is a reference to the main-form, and ControlName is a reference to the field on the main-form.
A longer way to write the above would be: Me.Parent.Contrls("ControlName")
Please see more on the topic in this link.

Referencing a subform as variable in a module

I've been using a module to take the name of a form and a control as variables to change a property of a control on a form. For example:
Sub mySub(formName As String, controlName As String)
Forms(formName).Controls(controlName).ForeColor = Colour.RedDark
End Sub
I'd like to do this for a property on a control on a subform as well, but can't quite figure out the syntax to also refer to the subform as a variable too.
I thought it might be something like:
Forms(mainFormName).Form(subFormName).Controls(controlName).ForeColor = Colour.RedDark
...but this isn't working (Object doesn't support this property or method).
My Access 2010 does not recognize a control property named ForeColour; but ForeColor is valid. (I don't know whether there is a locale issue involved here but my locale is US English.)
Other than that, I think you're trying to access ForeColor through the .Form(subFormName) property. Instead of that, reference the subform control, and from there the target control in its contained subform.
In this working example, Form12 contains a subform control named Child0. The subform control contains a form named fsub2 which in turn contains a text box named txtMemo_field. But note the name of the subform (the form name not the control which contains it) does not appear in this statement:
Forms("Form12").Controls("Child0").Controls("txtMemo_field").ForeColor = vbBlue

MS Access: Subform doesn't work, but the main form does

I have a form with a button that updates data in a table, form which works perfectly. However, when I add it as a subform on a tab paged form, it no longer does. Access prompts out asking for the [Forms]![MyForm]![textbox] variable, although it exists and is filled out. I'm guessing there's a different way to reference a subform.
Refer to the name of the form, the name of the subform control, the form property and the name of the control (reference MVPs, MS ). You have MS Access 2010, so you can use the query design window and intellisense to build the relevant string, it will work put something like:
[forms]![Gestiune]![SubformControlNameHere].Form![idInchirieri]
The expression [Forms]![MyForm]![textbox] probably appears within the query used as RowSource of a ComboBox or ListBox on the subform. This subform is now no longer Forms!MyForm but
Forms!MainForm!MySubformControl.Form
I don't know the correct names, adapt them accordingly.
Change the expression to something like
Forms!MainForm!MySubformControl.Form!textbox
Forms is the collection of the open forms. (invariable)
MainForm is the name of the form with the tab control. (adapt)
MySubformControl is the name of the control containing the subform. (adapt)
.Form designates the subform itself. (invariable)
Finally textbox is your TextBox. (should be ok, otherwise adapt)

Can't change Text of TextBox in Report_Open

All I want to do is set a textbox or label's text to something dynamic when the report is opened with a click of a button in another form. I've solved everything except actually changing the text.
This code gives run-time error 2478 on SetFocus:
Me.tFilial.SetFocus
Me.tFilial.Text = filialen
Without SetFocus I get a run-time error saying the text can't be changed without switching control to the control in question.
What is allowed where is always in question in Access, it seems. How do I solve this? Can I set the value on the buttonclick in the other form with
Reports![rptPressSchema]![tFilial].text="Hello"?
I would be happy to use a label instead, if that solves it. But the bottom line is I can try to do this every which way but I thought I'd ask you for advice as to best practice, as this must be a very common task indeed.
From the Access help:
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. If you use the Save Record command on the Records menu to save the data in the control without moving the focus, the Text property and Value property settings will be the same.
Basically, the .Text property serves no purpose in a Report because individual controls cannot receive the focus. However, as #Remou stated in his comment, you can simply replace .Text with .Value and your code should work fine (no need to set focus when updating the value).
spent a lot of time for searching and trying. Finally figure the things out...
To dynamically set the TextBox content, it is convenient to use
tbTest.Value = "hello"
but the trick is if you are using this On Open, it will be in trouble...
Run-time error '2448'
You can't assign a value to this object.
So you need set the value On Load
Private Sub Report_Load()
Me.tbTest.Value = "hello"
End Sub
Private Sub Report_Open(Cancel As Integer)
'Me.tbTest.Value = "hello"
End Sub
I see nowhere for any explanation of this, my guess is for Open event, the object is still not initiated (document for explaining Load and Open event)...

How to refresh listbox

What's the best way to refresh a list box in MS Access? The way I have tried it doesn't seem to work :-/
This is my current method (onClick event of a button on the same form):
Me.orders.Requery
I have also tried
orders.Requery
and
Forms!currentOrders.orders.Requery
but none of them seem to refresh the list box's contents - I see no new items, even though I know that there are some. Closing off the form, and then re-opening it does show the new items, however.
You could try and requery the form first and then requery the listbox
You need to use a temporary textbox, then your listbox will refresh automatically.
The following solution worked for me. (I don't know why, but using direct value from searchbox didn't work for me.) i have used no button. For instant search:
a textbox where you actually type. its name "Finder"
a textbox where you save the searching string temporarily. its name "Search".
a listbox where you show result. its name "lstResults"
(NB: also to mention, the query, uses the textbox named "Search"; which is our temporary textbox.)
code:
Private Sub Finder_Change() ' "on change" event of "Finder" box
Me.search = Me.Finder.Text ' save the typed text in another textbox and use from there for query (otherwise it might not work)
Me.lstResults.Requery ' update listbox "lstResults" on any change
End Sub