Programmatically set text in textbox on Access Report

I have a report which is loaded by clicking a button on a form. The subtitle field should contain the same text as a label on the form. Currently I'm linking this textbox directly to the contents of that label, but then it generates an error if the form is closed (or not open in the first place, that is if the report is opened directly). I would like to avoid this by setting the textbox to have a constant string value, taken from the aforementioned form label. However, to set the text in the textbox, the textbox must have focus. It can't have focus in design mode or print preview mode, and these are the only modes available for reports. Does anyone have a workaround in which I could set the contents of that textbox programmatically, so that users can save the report they have generated without having it display errors or incorrect text?
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876Asked:
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Mike EghtebasDatabase and Application DeveloperCommented:
Try this

In Report OnOpen Event: (also try this code in OnFormat of report header)

Dim temp
temp=Nz(TileStr,"is null")
temp=iif(temp="","is empty",temp)
Msgbox temp                        '<-- to check to see if the variable is recognized
Me!txtSubHead ="ABCD"        '<-- to check to see if ABCD appears in txtSubHead


---------
In OnClick event of preview button, include:

TileStr =Me!lblDisplay.caption & ""                    
MsgBox TileStr & "   <-- string read from the form; remove after a test"

Let me know about two MsgBoxes and ABCD on the report.

Mike
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Mike EghtebasDatabase and Application DeveloperCommented:
In a standard module, under module tab paste:

Public TileStr As String
---------
In OnClick event of preview button, include:

TileStr =Me!txtTitle

And, in report OnOpen event include:

Me!txtReportTitle=TileStr

Mike
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876Author Commented:
Hi, I gave that a try. Worked fine up until setting the contents of the textbox on the report (I tried the line of code above, tried substituting 'TileStr' with a constant string, and tried changing the '!' to a '.', none of which changed the outcome), where I got the following error:
Run-time error '2448':
You can't assign a value to this object.
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Mike EghtebasDatabase and Application DeveloperCommented:
Corrections...  and some questions for you:

Public TileStr As String                             'Q1:  Do you have in right place?
---------
In OnClick event of preview button, include:

TileStr =Nz(Me!txtTitle,"")                        'Q2: is txtTitle on your form and it is unbound?
MsgBox TileStr & "   <-- string read from the form; remove after a test"
---------
And, in report OnOpen event include:

Me!txtReportTitle=TileStr                     'Q3: is txtReportTitle on your report and it is unbound?
MsgBox TileStr & "   <-- string in report; remove after a test"

Mike
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876Author Commented:
Re: Q1: It's sitting by itself in a module. I got no runtime errors upon assigning its value from the form.
Re: Q2: txtTitle is actually a label named lblDisplay. It is unbound. I set the contents programmatically based on selections made in other fields.
Re: Q3: txtReportTitle is called txtSubHead. Its ControlSource is as follows:
=Forms!frmProcessRelationships!lblDisplay.Caption
..as it is linked to the value in the label on the form.

I have changed my code as you suggested. I now get the following error:
438: Object doesn't support this property or method
on this line:
TileStr = Nz(Me!lblDisplay, "").

I get the same error on the next line (printing TileStr in a message box), so there must be a problem with accessing that member of that module for some reason...
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Mike EghtebasDatabase and Application DeveloperCommented:
corrections...

In OnClick event of preview button, include:

TileStr =Me!lblDisplay.caption & ""                    
MsgBox TileStr & "   <-- string read from the form; remove after a test"
---------
And, in report OnOpen event include:

Me!txtReportTitle =TileStr    
' remove =Forms!frmProcessRelationships!lblDisplay.Caption  from its control source

Mike
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876Author Commented:
I made the changes you recommended, including unbinding the textbox. When running the following line from the report:
Me!txtSubHead = TileStr
I get the following error:
Run-time error '2448':
You can't assign a value to this object.
I'm not sure if this is to do with it not having focus, or some other problem...
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Mike EghtebasDatabase and Application DeveloperCommented:
in

Me!txtSubHead = TileStr

I take that txtSubHead is a text box.  If it is a lable (we need to call it lblSubHead on the report and in the code) like

Me!lblSubHead.caption = TileStr
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876Author Commented:
txtSubHead is indeed a textbox. I don't think I'd be able to bind it to my form if it was a label (but I'm not 100% sure about that).
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Mike EghtebasDatabase and Application DeveloperCommented:
The control source of txtSubHead needs to be empty, is it?
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876Author Commented:
It is empty.
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876Author Commented:
Tried this in the Open event:
temp contained "is empty" when it came up in the msgbox
Me!txtSubHead ="ABCD" threw exception 2448 as documented earlier.

Tried it in the OnFormat event:
temp contained "is empty" when it came up in the msgbox
No unhandled exceptions; "ABCD" appears as the subheading!!

In preview button's Click event:
TileStr was successfully set to the value of the label.

I don't want to change the subheading if the report has been loaded without the use of the form. I'll put a flag in that global module to state whether the form loaded the report...

Thanks very much for your help!
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