Changing variable in different class

[lleemon]

Looking for the best way to update a variable in a different class. Below is a rough outline of the situation.

I am wondering if in fnSendEmailTo if I can access the Property in CB? If not, how would you do something like this?

file: CB.vb
----------------------------
Imports Project.Functions

Public Class CB
 Private _CurrentEmailsSentCount As Integer = 0
 Private _ID As Integer = 23

    Public Property CurrentEmailSentCount() As Integer
        Get
            Return _CurrentEmailsSentCount
        End Get
        Set(value As Integer)
            _CurrentEmailsSentCount = value
        End Set
    End Property

 Public Function fnStart() As String
	CurrentEmailSentCount = fnGetJobPostingID_EmailsSentCount(_ID)
	Return sRetVal
 End Function
End Class

file: Functions.vb
----------------------------
Public Class Functions

 Public Shared Function fnSendEmailTo(...various parameters..) As String
   '... code
   If iEmailSent = 1 Then
    'update the _CurrentEmailsSentCount variable here from class CB
    CurrentEmailSentCount += 1
   End If
   '... code
 End Function
End Class

[.paul.]

you could make the property shared:

Public Class CB
    Private Shared _CurrentEmailsSentCount As Integer = 0
    Private _ID As Integer = 23
 
    Public Shared Property CurrentEmailSentCount() As Integer
        Get
            Return _CurrentEmailsSentCount
        End Get
        Set(ByVal value As Integer)
            _CurrentEmailsSentCount = value
        End Set
    End Property
 
    Public Function fnStart() As String
        CurrentEmailSentCount = fnGetJobPostingID_EmailsSentCount(_ID)
        Return sRetVal
    End Function
 
End Class

Public Class Functions
    Public Shared Function fnSendEmailTo(...various parameters..) As String
        Dim iEmailSent As Integer = 1
        '... code
        If iEmailSent = 1 Then
            'update the _CurrentEmailsSentCount variable here from class CB
            CB.CurrentEmailSentCount += 1
        End If
        '... code
    End Function
 
End Class

[techgnome]

why make it shared? It's already public... and exposed through the property... if you want to update it, then you need a reference to the instance that you want to update...

-tg

[Shaggy Hiker]

Making it shared could have some negative consequences. After all, if you did that, you wouldn't even be ABLE to have different instances of that class. At least, they wouldn't be able to work the way they currently do. On the other hand, with a name like CurrentEmailSentCount, perhaps this is a class where there will never be more than one instance anyways, in which case a Shared item would make sense.

[.paul.]

On the other hand, with a name like CurrentEmailSentCount, perhaps this is a class where there will never be more than one instance anyways, in which case a Shared item would make sense.

that was my guess too. i couldn't answer sooner... i was busy