How To Display Global Variable On Report?

[DBLoser]

I have a global variable defined on a form and would like to have a text box on my report = the global variable. I tried inserting the text box and setting it equal to the variable but Access converts this to a field with [] around it and does not work. How can I call reference the variable?

 

[dful]

Try ="variable" in the control source of the text box.

 

[wemeier]

You can't access a global variable as a ControlSource in a report (or in a form, for that matter) because global variables are part of Visual Basic and not really part of Access.

However, what I've done in the past is to create a public function that returns the value of the global variable. For example, if you have a module named basGlobalVariables with the following code:

Option Compare Database
Option Explicit

Global CurrUser As String

Public Function GetCurrUser() As String
    GetCurrUser = CurrUser
End Function

you can then put =GetCurrUser() as the ControlSource of a control on the report.


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[RoyVidar]

I have a global variable defined on a form"
- NOTE - a variable defined with the public keyword at the top of a forms/reports module IS NOT a public variable. You will need to put it into a standard module (in VBE - Insert | Module) to make it public (global).

A form public, is only available as long as the form is open. When it closes, the form public looses the value (out of scope).

wemeier's suggestion will work well with a public variable (declared in a standard module), but if you're going to try to retrieve a form public you'll need to ensure the form is open, then fetch it like a form property, for instance like this:

[tt]Public Function GetCurrUser() As String
GetCurrUser = forms("nameofyourform").CurrUser
End Function[/tt]

wemeier's or this function will need to be in a standard module.

Roy-Vidar

 

[wemeier]

Good point, Roy-Vidar. When brucewbannan said "a global variable" I assumed it was in a module since global variables (defined using the GLOBAL keyword) can't be in a form.

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