Trouble with variables and Modules in Visual Basic

utilitarian

People, i am new to boards, and you have already helped me, and i have learnt to asked clearly and specifically, here goes....

I am using Visual Basic 6. I have a few different forms. I have a frmMain form and there is a value in a text field in it that i want to update. The value is meant to come from another form different to the frmMain (but of course still in the same project).

Now i am sure i have to use a Module and declare the variable in the in the module, then it would be global and i could use the variable in different forms. But it isn't working out... Any help....

So, if i have
txtSumOfMoney.Text = Amount
in frmMain and in lets say
Amount = Amount + 500 in frmCashUpDate
How do i get this to work? I have made a module and in it written the following
Global Amount As Integer

Could someone please help? Should i be more specific?

The Corinthian

Create a public sub called Main in your module that simply shows whatever your default form should be. Then under project properties have it start using the sub main rather than automatically loading a form.

RicardoSmith

I'm not sure what you are asking. But as a variation on Corinthians post.

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Load subMain (Start Application)
(Main routine load all frms and sub routines from here)
Declare/Initialise global variables

Load frmMain

Load frmCashUpDate
Update global variable
Close frmCashUpDate

Reload/refresh values in frmMain from global variable.
Close frmMain

(insert error handler here to catch all errors from all sub routines within subMain)
Close subMain (end application)
'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


A lot of this depends on what kind of application it is and if you open and close from or have them all open and child forms etc. But it generally good practise to have one main routine that everything runs from. Run subRoutines, functions and forms from this main routine. In that way you have one "master" routine" where you can see the overall flow and logic of the application.

amen

have a look at property Get/Set in VB
you can declare a local variable on the form and the
define a Get/Set property that will that value to be set
on frmMain
its been a long time since I did this so the syntax is probally wrong
Declare dAmount as double
property set Amount(value as double)
dAmount = value)
end property

then in frmCashUpdate
frmMain.Amount = 500

RicardoSmith

You could use property bags either. But unless its a complex app I wouldn't bother.