Question

I have a large program that changes the value of a variable, say Var, incrementing or decrementing. At any time when Var = 5 I want to execute a subroutine, say Flag().

What is the “appropriate” way to implement this?

What I have in mind is this:

While True
    If Var = 5 then
        Flag()
    End If
End While

But it looked quite silly.

Answer 1

Create a Sub or a Property, change your variable using it, that way you can check the value.

Public Class Form1
    Dim Var As Integer

    Private Sub updateVar(value As Integer)
        Var = value
        If Var = 5 Then
            MsgBox("Var = 5")
        End If
    End Sub

End Class